README.md

   1 **These policies are in active development and so might contain changes that do not work with current versions of Firefox.**
   2
   3 **You should use the [officially released versions](https://github.com/mozilla/policy-templates/releases) if you are deploying changes.**
   4
   5 Policies can be specified using the [Group Policy templates on Windows](https://github.com/mozilla/policy-templates/tree/master/windows), [Intune on Windows](https://support.mozilla.org/kb/managing-firefox-intune), [configuration profiles on macOS](https://github.com/mozilla/policy-templates/tree/master/mac), or by creating a file called `policies.json`. On Windows, create a directory called `distribution` where the EXE is located and place the file there. On Mac, the file goes into `Firefox.app/Contents/Resources/distribution`.  On Linux, the file goes into `firefox/distribution`, where `firefox` is the installation directory for firefox, which varies by distribution or you can specify system-wide policy by placing the file in `/etc/firefox/policies`.
   6
   7 | Policy Name | Description
   8 | --- | --- |
   9 | **[`AppAutoUpdate`](#appautoupdate)** |  Enable or disable automatic application update.
  10 | **[`AppUpdateURL`](#appupdateurl)** | Change the URL for application update.
  11 | **[`Authentication`](#authentication)** | Configure sites that support integrated authentication.
  12 | **[`BlockAboutAddons`](#blockaboutaddons)** | Block access to the Add-ons Manager (about:addons).
  13 | **[`BlockAboutConfig`](#blockaboutconfig)** | Block access to about:config.
  14 | **[`BlockAboutProfiles`](#blockaboutprofiles)** | Block access to About Profiles (about:profiles).
  15 | **[`BlockAboutSupport`](#blockaboutsupport)** | Block access to Troubleshooting Information (about:support).
  16 | **[`Bookmarks`](#bookmarks)** | Add bookmarks in either the bookmarks toolbar or menu.
  17 | **[`CaptivePortal`](#captiveportal)** | Enable or disable the detection of captive portals.
  18 | **[`Certificates`](#certificates)** |
  19 | **[`Certificates -> ImportEnterpriseRoots`](#certificates--importenterpriseroots)** | Trust certificates that have been added to the operating system certificate store by a user or administrator.
  20 | **[`Certificates -> Install`](#certificates--install)** | Install certificates into the Firefox certificate store.
  21 | **[`Cookies`](#cookies)** | Configure cookie preferences.
  22 | **[`DisableAppUpdate`](#disableappupdate)** | Turn off application updates.
  23 | **[`DisableBuiltinPDFViewer`](#disablebuiltinpdfviewer)** | Disable the built in PDF viewer.
  24 | **[`DisabledCiphers`](#disabledciphers)** | Disable ciphers.
  25 | **[`DisableDefaultBrowserAgent`](#disabledefaultbrowseragent)** | Prevent the default browser agent from taking any actions (Windows only).
  26 | **[`DisableDeveloperTools`](#disabledevelopertools)** | Remove access to all developer tools.
  27 | **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
  28 | **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.
  29 | **[`DisableFirefoxAccounts`](#disablefirefoxaccounts)** | Disable Firefox Accounts integration (Sync).
  30 | **[`DisableFirefoxStudies`](#disablefirefoxstudies)** | Disable Firefox studies (Shield).
  31 | **[`DisableForgetButton`](#disableforgetbutton)** | Disable the "Forget" button.
  32 | **[`DisableFormHistory`](#disableformhistory)** | Turn off saving information on web forms and the search bar.
  33 | **[`DisableMasterPasswordCreation`](#disablemasterpasswordcreation)** | Remove the master password functionality.
  34 | **[`DisablePasswordReveal`](#disablepasswordreveal)** | Do not allow passwords to be revealed in saved logins.
  35 | **[`DisablePocket`](#disablepocket)** | Remove Pocket in the Firefox UI.
  36 | **[`DisablePrivateBrowsing`](#disableprivatebrowsing)** | Remove access to private browsing.
  37 | **[`DisableProfileImport`](#disableprofileimport)** | Disables the "Import data from another browser" option in the bookmarks window.
  38 | **[`DisableProfileRefresh`](#disableprofilerefresh)** | Disable the Refresh Firefox button on about:support and support.mozilla.org
  39 | **[`DisableSafeMode`](#disablesafemode)** | Disable safe mode within the browser.
  40 | **[`DisableSecurityBypass`](#disablesecuritybypass)** | Prevent the user from bypassing security in certain cases.
  41 | **[`DisableSetDesktopBackground`](#disablesetdesktopbackground)** | Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
  42 | **[`DisableSystemAddonUpdate`](#disablesystemaddonupdate)** | Prevent system add-ons from being installed or update.
  43 | **[`DisableTelemetry`](#disabletelemetry)** | DisableTelemetry
  44 | **[`DisplayBookmarksToolbar`](#displaybookmarkstoolbar)** | Set the initial state of the bookmarks toolbar.
  45 | **[`DisplayMenuBar (Deprecated)`](#displaymenubar-deprecated)** | Set the initial state of the menubar.
  46 | **[`DisplayMenuBar`](#displaymenubar)** | Set the state of the menubar.
  47 | **[`DNSOverHTTPS`](#dnsoverhttps)** | Configure DNS over HTTPS.
  48 | **[`DontCheckDefaultBrowser`](#dontcheckdefaultbrowser)** | Don't check if Firefox is the default browser at startup.
  49 | **[`DefaultDownloadDirectory`](#defaultdownloaddirectory)** | Set the default download directory.
  50 | **[`DownloadDirectory`](#downloaddirectory)** | Set and lock the download directory.
  51 | **[`EnableTrackingProtection`](#enabletrackingprotection)** | Configure tracking protection.
  52 | **[`EncryptedMediaExtensions`](#encryptedmediaextensions)** | Enable or disable Encrypted Media Extensions and optionally lock it.
  53 | **[`EnterprisePoliciesEnabled`](#enterprisepoliciesenabled)** | Enable policy support on macOS.
  54 | **[`Extensions`](#extensions)** | Control the installation, uninstallation and locking of extensions.
  55 | **[`ExtensionSettings`](#extensionsettings)** | Manage all aspects of extensions.
  56 | **[`ExtensionUpdate`](#extensionupdate)** | Control extension updates.
  57 | **[`FlashPlugin`](#flashplugin)** | Configure the default Flash plugin policy as well as origins for which Flash is allowed.
  58 | **[`FirefoxHome`](#firefoxhome)** | Customize the Firefox Home page.
  59 | **[`HardwareAcceleration`](#hardwareacceleration)** | Control hardware acceleration.
  60 | **[`Handlers`](#handlers)** | Configure default application handlers.
  61 | **[`Homepage`](#homepage)** | Configure the default homepage and how Firefox starts.
  62 | **[`InstallAddonsPermission`](#installaddonspermission)** | Configure the default extension install policy as well as origins for extension installs are allowed.
  63 | **[`LegacyProfiles`](#legacyprofiles)** | Disable the feature enforcing a separate profile for each installation.
  64 | **[`LocalFileLinks`](#localfilelinks)** | Enable linking to local files by origin.
  65 | **[`PrimaryPassword`](#primarypassword)** | Require or prevent using a primary (formerly master) password.
  66 | **[`NetworkPrediction`](#networkprediction)** | Enable or disable network prediction (DNS prefetching).
  67 | **[`NewTabPage`](#newtabpage)** | Enable or disable the New Tab page.
  68 | **[`NoDefaultBookmarks`](#nodefaultbookmarks)** | Disable the creation of default bookmarks.
  69 | **[`OfferToSaveLogins`](#offertosavelogins)** | Control whether or not Firefox offers to save passwords.
  70 | **[`OfferToSaveLoginsDefault`](#offertosaveloginsdefault)** | Set the default value for whether or not Firefox offers to save passwords.
  71 | **[`OverrideFirstRunPage`](#overridefirstrunpage)** | Override the first run page.
  72 | **[`OverridePostUpdatePage`](#overridepostupdatepage)** | Override the upgrade page.
  73 | **[`PasswordManagerEnabled`](#passwordmanagerenabled)** | Remove (some) access to the password manager.
  74 | **[`PDFjs`](#pdfjs)** | Disable or configure PDF.js, the built-in PDF viewer.
  75 | **[`Permissions`](#permissions)** | Set permissions associated with camera, microphone, location, and notifications.
  76 | **[`PictureInPicture`](#pictureinpicture)** | Enable or disable Picture-in-Picture.
  77 | **[`PopupBlocking`](#popupblocking)** | Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
  78 | **[`Preferences`](#preferences)** | Set and lock preferences.
  79 | **[`Preferences (Deprecated)`](#preferences-deprecated)** | Set and lock some preferences.
  80 | **[`PromptForDownloadLocation`](#promptfordownloadlocation)** | Ask where to save each file before downloading.
  81 | **[`Proxy`](#proxy)** | Configure proxy settings.
  82 | **[`RequestedLocales`](#requestedlocales)** | Set the the list of requested locales for the application in order of preference.
  83 | **[`SanitizeOnShutdown` (All)](#sanitizeonshutdown-all)** | Clear all data on shutdown.
  84 | **[`SanitizeOnShutdown` (Selective)](#sanitizeonshutdown-selective)** | Clear data on shutdown.
  85 | **[`SearchBar`](#searchbar)** | Set whether or not search bar is displayed.
  86 | **[`SearchEngines`](#searchengines-this-policy-is-only-available-on-the-esr)** |
  87 | **[`SearchEngines -> Default`](#searchengines--default)** | Set the default search engine.
  88 | **[`SearchEngines -> PreventInstalls`](#searchengines--preventinstalls)** | Prevent installing search engines from webpages.
  89 | **[`SearchEngines -> Remove`](#searchengines--remove)** | Hide built-in search engines.
  90 | **[`SearchEngines -> Add`](#searchengines--add)** | Add new search engines.
  91 | **[`SearchSuggestEnabled`](#searchsuggestenabled)** | Enable search suggestions.
  92 | **[`SecurityDevices`](#securitydevices)** | Install PKCS #11 modules.
  93 | **[`SSLVersionMax`](#sslversionmax)** | Set and lock the maximum version of TLS.
  94 | **[`SSLVersionMin`](#sslversionmin)** | Set and lock the minimum version of TLS.
  95 | **[`SupportMenu`](#supportmenu)** | Add a menuitem to the help menu for specifying support information.
  96 | **[`UserMessaging`](#usermessaging)** | Don't show certain messages to the user.
  97 | **[`WebsiteFilter`](#websitefilter)** | Block websites from being visited.
  98
  99 ### AppAutoUpdate
 100
 101 Enable or disable **automatic** application update.
 102
 103 If set to true, application updates are installed without user approval.
 104
 105 If set to false, application updates are downloaded but the user can choose when to install the update.
 106
 107 If you have disabled updates via DisableAppUpdate, this policy has no effect.
 108
 109 **Compatibility:** Firefox 75, Firefox ESR 68.7\
 110 **CCK2 Equivalent:** N/A\
 111 **Preferences Affected:** app.update.auto
 112
 113 #### Windows (GPO)
 114 ```
 115 Software\Policies\Mozilla\Firefox\AppAutoUpdate = 0x1 | 0x0
 116 ```
 117 #### Windows (Intune)
 118 OMA-URI:
 119 ```
 120 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppAutoUpdate
 121 ```
 122 Value (string):
 123 ```
 124 <enabled/> or <disabled/>
 125 ```
 126 #### macOS
 127 ```
 128 <dict>
 129   <key>AppAutoUpdate</key>
 130   <true/> | <false/>
 131 </dict>
 132 ```
 133 #### policies.json
 134 ```
 135 {
 136   "policies": {
 137     "AppAutoUpdate": true | false
 138   }
 139 }
 140 ```
 141 ### AppUpdateURL
 142
 143 Change the URL for application update.
 144
 145 **Compatibility:** Firefox 62, Firefox ESR 60.2\
 146 **CCK2 Equivalent:** N/A\
 147 **Preferences Affected:** `app.update.url`
 148
 149 #### Windows (GPO)
 150 ```
 151 Software\Policies\Mozilla\Firefox\AppUpdateURL = "https://yoursite.com"
 152 ```
 153 #### Windows (Intune)
 154 OMA-URI:
 155 ```
 156 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdateURL
 157 ```
 158 Value (string):
 159 ```
 160 <enabled/>
 161 <data id="AppUpdateURL" value="https://yoursite.com"/>
 162 ```
 163 #### macOS
 164 ```
 165 <dict>
 166   <key>AppUpdateURL</key>
 167   <string>https://yoursite.com</string>
 168 </dict>
 169 ```
 170 #### policies.json
 171 ```
 172 {
 173   "policies": {
 174     "AppUpdateURL": "https://yoursite.com"
 175   }
 176 }
 177 ```
 178 ### Authentication
 179
 180 Configure sites that support integrated authentication.
 181
 182 See https://developer.mozilla.org/en-US/docs/Mozilla/Integrated_authentication for more information.
 183
 184 `PrivateBrowsing` enables integrated authentication in private browsing.
 185
 186 **Compatibility:** Firefox 60, Firefox ESR 60 (AllowNonFQDN added in 62/60.2, AllowProxies added in 70/68.2, Locked added in 71/68.3, PrivateBrowsing added in 77/68.9)\
 187 **CCK2 Equivalent:** N/A\
 188 **Preferences Affected:** `network.negotiate-auth.trusted-uris`,`network.negotiate-auth.delegation-uris`,`network.automatic-ntlm-auth.trusted-uris`,`network.automatic-ntlm-auth.allow-non-fqdn`,`network.negotiate-auth.allow-non-fqdn`,`network.automatic-ntlm-auth.allow-proxies`,`network.negotiate-auth.allow-proxies`,`network.auth.private-browsing-sso`
 189
 190 #### Windows (GPO)
 191 ```
 192 Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\1 = "mydomain.com"
 193 Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\2 = "https://myotherdomain.com"
 194 Software\Policies\Mozilla\Firefox\Authentication\Delegated\1 = "mydomain.com"
 195 Software\Policies\Mozilla\Firefox\Authentication\Delegated\2 = "https://myotherdomain.com"
 196 Software\Policies\Mozilla\Firefox\Authentication\NTLM\1 = "mydomain.com"
 197 Software\Policies\Mozilla\Firefox\Authentication\NTLM\2 = "https://myotherdomain.com"
 198 Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\SPNEGO = 0x1 | 0x0
 199 Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\NTLM = 0x1 | 0x0
 200 Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\SPNEGO = 0x1 | 0x0
 201 Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\NTLM = 0x1 | 0x0
 202 Software\Policies\Mozilla\Firefox\Authentication\Locked = 0x1 | 0x0
 203 Software\Policies\Mozilla\Firefox\Authentication\PrivateBrowsing = 0x1 | 0x0
 204 ```
 205 #### Windows (Intune)
 206 OMA-URI:
 207 ```
 208 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_SPNEGO
 209 ```
 210 Value (string):
 211 ```
 212 <enabled/>
 213 <data id="Authentication" value="1&#xF000;mydomain&#xF000;2&#xF000;https://myotherdomain.com"/>
 214 ```
 215 OMA-URI:
 216 ```
 217 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Delegated
 218 ```
 219 Value (string):
 220 ```
 221 <enabled/>
 222 <data id="Authentication" value="1&#xF000;mydomain&#xF000;2&#xF000;https://myotherdomain.com"/>
 223 ```
 224 OMA-URI:
 225 ```
 226 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_NTLM
 227 ```
 228 Value (string):
 229 ```
 230 <enabled/>
 231 <data id="Authentication" value="1&#xF000;mydomain&#xF000;2&#xF000;https://myotherdomain.com"/>
 232 ```
 233 OMA-URI:
 234 ```
 235 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_AllowNonFQDN
 236 ```
 237 Value (string):
 238 ```
 239 <enabled/>
 240 <data id="Authentication_AllowNonFQDN_NTLM" value="true | false"/>
 241 <data id="Authentication_AllowNonFQDN_SPNEGO" value="true | false"/>
 242 ```
 243 OMA-URI:
 244 ```
 245 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Locked
 246 ```
 247 Value (string):
 248 ```
 249 <enabled/> or <disabled/>
 250 ```
 251 OMA-URI:
 252 ```
 253 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_PrivateBrowsing
 254 ```
 255 Value (string):
 256 ```
 257 <enabled/> or <disabled/>
 258 ```
 259 #### macOS
 260 ```
 261 <dict>
 262   <key>Authentication</key>
 263   <dict>
 264     <key>SPNEGO</key>
 265     <array>
 266       <string>mydomain.com</string>
 267       <string>https://myotherdomain.com</string>
 268     </array>
 269     <key>Delegated</key>
 270     <array>
 271       <string>mydomain.com</string>
 272       <string>https://myotherdomain.com</string>
 273     </array>
 274     <key>NTLM</key>
 275     <array>
 276       <string>mydomain.com</string>
 277       <string>https://myotherdomain.com</string>
 278     </array>
 279     <key>AllowNonFQDN</key>
 280       <dict>
 281       <key>SPNEGO</key>
 282       <true/> | <false/>
 283       <key>NTLM</key>
 284       <true/> | <false/>
 285     </dict>
 286     <key>AllowProxies</key>
 287       <dict>
 288       <key>SPNEGO</key>
 289       <true/> | <false/>
 290       <key>NTLM</key>
 291       <true/> | <false/>
 292     </dict>
 293     <key>Locked</key>
 294     <true/> | <false/>
 295     <key>PrivateBrowsing</key>
 296     <true/> | <false/>
 297   </dict>
 298 </dict>
 299 ```
 300 #### policies.json
 301 ```
 302 {
 303   "policies": {
 304     "Authentication": {
 305       "SPNEGO": ["mydomain.com", "https://myotherdomain.com"],
 306       "Delegated": ["mydomain.com", "https://myotherdomain.com"],
 307       "NTLM": ["mydomain.com", "https://myotherdomain.com"],
 308       "AllowNonFQDN": {
 309         "SPNEGO": true | false,
 310         "NTLM": true | false
 311       },
 312       "AllowProxies": {
 313         "SPNEGO": true | false,
 314         "NTLM": true | false
 315       },
 316       "Locked": true | false,
 317       "PrivateBrowsing": true | false
 318     }
 319   }
 320 }
 321 ```
 322 ### BlockAboutAddons
 323
 324 Block access to the Add-ons Manager (about:addons).
 325
 326 **Compatibility:** Firefox 60, Firefox ESR 60\
 327 **CCK2 Equivalent:** `disableAddonsManager`\
 328 **Preferences Affected:** N/A
 329
 330 #### Windows (GPO)
 331 ```
 332 Software\Policies\Mozilla\Firefox\BlockAboutAddons = 0x1 | 0x0
 333 ```
 334 #### Windows (Intune)
 335 OMA-URI:
 336 ```
 337 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutAddons
 338 ```
 339 Value (string):
 340 ```
 341 <enabled/> or <disabled/>
 342 ```
 343 #### macOS
 344 ```
 345 <dict>
 346   <key>BlockAboutAddons</key>
 347   <true/> | <false/>
 348 </dict>
 349 ```
 350 #### policies.json
 351 ```
 352 {
 353   "policies": {
 354     "BlockAboutAddons": true | false
 355   }
 356 }
 357 ```
 358 ### BlockAboutConfig
 359
 360 Block access to about:config.
 361
 362 **Compatibility:** Firefox 60, Firefox ESR 60\
 363 **CCK2 Equivalent:** `disableAboutConfig`\
 364 **Preferences Affected:** N/A
 365
 366 #### Windows (GPO)
 367 ```
 368 Software\Policies\Mozilla\Firefox\BlockAboutConfig = 0x1 | 0x0
 369 ```
 370 #### Windows (Intune)
 371 OMA-URI:
 372 ```
 373 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutConfig
 374 ```
 375 Value (string):
 376 ```
 377 <enabled/> or <disabled/>
 378 ```
 379 #### macOS
 380 ```
 381 <dict>
 382   <key>BlockAboutConfig</key>
 383   <true/> | <false/>
 384 </dict>
 385 ```
 386 #### policies.json
 387 ```
 388 {
 389   "policies": {
 390     "BlockAboutConfig": true | false
 391   }
 392 }
 393 ```
 394 ### BlockAboutProfiles
 395
 396 Block access to About Profiles (about:profiles).
 397
 398 **Compatibility:** Firefox 60, Firefox ESR 60\
 399 **CCK2 Equivalent:** `disableAboutProfiles`\
 400 **Preferences Affected:** N/A
 401
 402 #### Windows (GPO)
 403 ```
 404 Software\Policies\Mozilla\Firefox\BlockAboutProfiles = 0x1 | 0x0
 405 ```
 406 #### Windows (Intune)
 407 OMA-URI:
 408 ```
 409 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutProfiles
 410 ```
 411 Value (string):
 412 ```
 413 <enabled/> or <disabled/>
 414 ```
 415 #### macOS
 416 ```
 417 <dict>
 418   <key>BlockAboutProfiles</key>
 419   <true/> | <false/>
 420 </dict>
 421 ```
 422 #### policies.json
 423 ```
 424 {
 425   "policies": {
 426     "BlockAboutProfiles": true | false
 427   }
 428 }
 429 ```
 430 ### BlockAboutSupport
 431
 432 Block access to Troubleshooting Information (about:support).
 433
 434 **Compatibility:** Firefox 60, Firefox ESR 60\
 435 **CCK2 Equivalent:** `disableAboutSupport`\
 436 **Preferences Affected:** N/A
 437
 438 #### Windows (GPO)
 439 ```
 440 Software\Policies\Mozilla\Firefox\BlockAboutSupport = 0x1 | 0x0
 441 ```
 442 #### Windows (Intune)
 443 OMA-URI:
 444 ```
 445 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutSupport
 446 ```
 447 Value (string):
 448 ```
 449 <enabled/> or <disabled/>
 450 ```
 451 #### macOS
 452 ```
 453 <dict>
 454   <key>BlockAboutSupport</key>
 455   <true/> | <false/>
 456 </dict>
 457 ```
 458 #### policies.json
 459 ```
 460 {
 461   "policies": {
 462     "BlockAboutSupport": true | false
 463   }
 464 }
 465 ```
 466 ### Bookmarks
 467
 468 Add bookmarks in either the bookmarks toolbar or menu. Only `Title` and `URL` are required. If `Placement` is not specified, the bookmark will be placed on the toolbar. If `Folder` is specified, it is automatically created and bookmarks with the same folder name are grouped together.
 469
 470 **Compatibility:** Firefox 60, Firefox ESR 60\
 471 **CCK2 Equivalent:** `bookmarks.toolbar`,`bookmarks.menu`\
 472 **Preferences Affected:** N/A
 473
 474 #### Windows (GPO)
 475 ```
 476 Software\Policies\Mozilla\Firefox\Bookmarks\1\Title = "Example"
 477 Software\Policies\Mozilla\Firefox\Bookmarks\1\URL = "https://example.com"
 478 Software\Policies\Mozilla\Firefox\Bookmarks\1\Favicon = "https://example.com/favicon.ico"
 479 Software\Policies\Mozilla\Firefox\Bookmarks\1\Placement = "toolbar" | "menu"
 480 Software\Policies\Mozilla\Firefox\Bookmarks\1\Folder = "FolderName"
 481 ```
 482 #### Windows (Intune)
 483 OMA-URI:
 484 ```
 485 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Bookmarks/Bookmark01
 486 ```
 487 Value (string):
 488 ```
 489 <enabled/>
 490 <data id="BookmarkTitle" value="Example"/>
 491 <data id="BookmarkURL" value="https://example.com"/>
 492 <data id="BookmarkFavicon" value="https://example.com/favicon.ico"/>
 493 <data id="BookmarkPlacement" value="toolbar | menu"/>
 494 <data id="BookmarkFolder" value="FolderName"/>
 495 ```
 496 #### macOS
 497 ```
 498 <dict>
 499   <key>Bookmarks</key>
 500   <array>
 501     <dict>
 502       <key>Title</key>
 503       <string>Example</string>
 504       <key>URL</key>
 505       <string>https://example.com</string>
 506       <key>Favicon</key>
 507       <string>https://example.com/favicon.ico</string>
 508       <key>Placement</key>
 509       <string>toolbar | menu</string>
 510       <key>Folder</key>
 511       <string>FolderName</string>
 512     </dict>
 513   </array>
 514 </dict>
 515 ```
 516 #### policies.json
 517 ```
 518 {
 519   "policies": {
 520     "Bookmarks": [
 521       {
 522         "Title": "Example",
 523         "URL": "https://example.com",
 524         "Favicon": "https://example.com/favicon.ico",
 525         "Placement": "toolbar" | "menu",
 526         "Folder": "FolderName"
 527       }
 528     ]
 529   }
 530 }
 531 ```
 532 ### CaptivePortal
 533 Enable or disable the detection of captive portals.
 534
 535 **Compatibility:** Firefox 67, Firefox ESR 60.7\
 536 **CCK2 Equivalent:** N/A\
 537 **Preferences Affected:** `network.captive-portal-service.enabled`
 538
 539 #### Windows (GPO)
 540 ```
 541 Software\Policies\Mozilla\Firefox\CaptivePortal = 0x1 | 0x0
 542 ```
 543 #### Windows (Intune)
 544 OMA-URI:
 545 ```
 546 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CaptivePortal
 547 ```
 548 Value (string):
 549 ```
 550 <enabled/> or <disabled/>
 551 ```
 552 #### macOS
 553 ```
 554 <dict>
 555   <key>CaptivePortal</key>
 556   <true/> | <false/>
 557 </dict>
 558 ```
 559 #### policies.json
 560 ```
 561 {
 562   "policies": {
 563     "CaptivePortal": true | false
 564   }
 565 }
 566 ```
 567 ### Certificates
 568
 569 ### Certificates | ImportEnterpriseRoots
 570
 571 Trust certificates that have been added to the operating system certificate store by a user or administrator.
 572
 573 Note: This policy only works on Windows and macOS. For Linux discussion, see [bug 1600509](https://bugzilla.mozilla.org/show_bug.cgi?id=1600509).
 574
 575 See https://support.mozilla.org/kb/setting-certificate-authorities-firefox for more detail.
 576
 577 **Compatibility:** Firefox 60, Firefox ESR 60 (macOS support in Firefox 63, Firefox ESR 68)\
 578 **CCK2 Equivalent:** N/A\
 579 **Preferences Affected:** `security.enterprise_roots.enabled`
 580
 581 #### Windows (GPO)
 582 ```
 583 Software\Policies\Mozilla\Firefox\Certificates\ImportEnterpriseRoots = 0x1 | 0x0
 584 ```
 585 #### Windows (Intune)
 586 OMA-URI:
 587 ```
 588 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_ImportEnterpriseRoots
 589 ```
 590 Value (string):
 591 ```
 592 <enabled/> or <disabled/>
 593 ```
 594 #### macOS
 595 ```
 596 <dict>
 597   <key>Certificates</key>
 598   <dict>
 599     <key>ImportEnterpriseRoots</key>
 600     <true/> | <false/>
 601   </dict>
 602 </dict>
 603 ```
 604 #### policies.json
 605 ```
 606 {
 607   "policies": {
 608     "Certificates": {
 609       "ImportEnterpriseRoots": true | false
 610     }
 611   }
 612 }
 613 ```
 614 ### Certificates | Install
 615
 616 Install certificates into the Firefox certificate store. If only a filename is specified, Firefox searches for the file in the following locations:
 617
 618 - Windows
 619   - %USERPROFILE%\AppData\Local\Mozilla\Certificates
 620   - %USERPROFILE%\AppData\Roaming\Mozilla\Certificates
 621 - macOS
 622   - /Library/Application Support/Mozilla/Certificates
 623   - ~/Library/Application Support/Mozilla/Certificates
 624 - Linux
 625   - /usr/lib/mozilla/certificates
 626   - /usr/lib64/mozilla/certificates
 627   - ~/.mozilla/certificates
 628
 629 Starting with Firefox 65, Firefox 60.5 ESR, a fully qualified path can be used, including UNC paths. You should use the native path style for your operating system. We do not support using %USERPROFILE% or other environment variables on Windows.
 630
 631 If you are specifying the path in the policies.json file on Windows, you need to escape your backslashes (`\\`) which means that for UNC paths, you need to escape both (`\\\\`). If you use group policy, you only need one backslash.
 632
 633 Certificates are installed using the trust string `CT,CT,`.
 634
 635 Binary (DER) and ASCII (PEM) certificates are both supported.
 636
 637 **Compatibility:** Firefox 64, Firefox ESR 64\
 638 **CCK2 Equivalent:** `certs.ca`\
 639 **Preferences Affected:** N/A
 640
 641 #### Windows (GPO)
 642 ```
 643 Software\Policies\Mozilla\Firefox\Certificates\Install\1 = "cert1.der"
 644 Software\Policies\Mozilla\Firefox\Certificates\Install\2 = "C:\Users\username\cert2.pem"
 645 ```
 646 #### Windows (Intune)
 647 OMA-URI:
 648 ```
 649 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_Install
 650 ```
 651 Value (string):
 652 ```
 653 <enabled/>
 654 <data id="Certificates_Install" value="1&#xF000;cert1.der&#xF000;2&#xF000;C:\Users\username\cert2.pem"/>
 655 ```
 656 #### macOS
 657 ```
 658 <dict>
 659   <key>Certificates</key>
 660   <dict>
 661     <key>Install</key>
 662     <array>
 663       <string>cert1.der</string>
 664       <string>/Users/username/cert2.pem</string>
 665     </array>
 666   </dict>
 667 </dict>
 668 ```
 669 #### policies.json
 670 ```
 671 {
 672   "policies": {
 673     "Certificates": {
 674       "Install": ["cert1.der", "/home/username/cert2.pem"]
 675     }
 676   }
 677 }
 678 ```
 679 ### Cookies
 680 Configure cookie preferences.
 681
 682 `Allow` is a list of origins (not domains) where cookies are always allowed. You must include http or https.
 683
 684 `AllowSession` is a list of origins (not domains) where cookies are only allowed for the current session. You must include http or https.
 685
 686 `Block` is a list of origins (not domains) where cookies are always blocked. You must include http or https.
 687
 688 `Default` determines whether cookies are accepted at all.
 689
 690 `AcceptThirdParty` determines how third-party cookies are handled.
 691
 692 `ExpireAtSessionEnd` determines when cookies expire.
 693
 694 `RejectTracker` only rejects cookies for trackers.
 695
 696 `Locked` prevents the user from changing cookie preferences.
 697
 698 **Compatibility:** Firefox 60, Firefox ESR 60 (RejectTracker added in Firefox 63, AllowSession added in Firefox 79/78.1)\
 699 **CCK2 Equivalent:** N/A\
 700 **Preferences Affected:** `network.cookie.cookieBehavior`,`network.cookie.lifetimePolicy`
 701
 702 #### Windows (GPO)
 703 ```
 704 Software\Policies\Mozilla\Firefox\Cookies\Allow\1 = "https://example.com"
 705 Software\Policies\Mozilla\Firefox\Cookies\AllowSession\1 = "https://example.edu"
 706 Software\Policies\Mozilla\Firefox\Cookies\Block\1 = "https://example.org"
 707 Software\Policies\Mozilla\Firefox\Cookies\Default = 0x1 | 0x0
 708 Software\Policies\Mozilla\Firefox\Cookies\AcceptThirdParty = "always" | "never" | "from-visited"
 709 Software\Policies\Mozilla\Firefox\Cookies\ExpireAtSessionEnd = 0x1 | 0x0
 710 Software\Policies\Mozilla\Firefox\Cookies\RejectTracker = 0x1 | 0x0
 711 Software\Policies\Mozilla\Firefox\Cookies\Locked = 0x1 | 0x0
 712 ```
 713 #### Windows (Intune)
 714 OMA-URI:
 715 ```
 716 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Allow
 717 ```
 718 Value (string):
 719 ```
 720 <enabled/>
 721 <data id="Cookies_Allow" value="1&#xF000;https://example.com"/>
 722 ```
 723 OMA-URI:
 724 ```
 725 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AllowSession
 726 ```
 727 Value (string):
 728 ```
 729 <enabled/>
 730 <data id="Cookies_Allow" value="1&#xF000;https://example.edu"/>
 731 ```
 732 OMA-URI:
 733 ```
 734 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Block
 735 ```
 736 Value (string):
 737 ```
 738 <enabled/>
 739 <data id="Cookies_Block" value="1&#xF000;https://example.org"/>
 740 ```
 741 OMA-URI:
 742 ```
 743 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Default
 744 ```
 745 Value (string):
 746 ```
 747 <enabled/> or <disabled/>
 748 ```
 749 OMA-URI:
 750 ```
 751 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AcceptThirdParty
 752 ```
 753 Value (string):
 754 ```
 755 <enabled/>
 756 <data id="Cookies_AcceptThirdParty" value="always | never | from-visited"/>
 757 ```
 758 OMA-URI:
 759 ```
 760 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_ExpireAtSessionEnd
 761 ```
 762 Value (string):
 763 ```
 764 <enabled/> or <disabled/>
 765 ```
 766 OMA-URI:
 767 ```
 768 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_RejectTracker
 769 ```
 770 Value (string):
 771 ```
 772 <enabled/> or <disabled/>
 773 ```
 774 OMA-URI:
 775 ```
 776 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Locked
 777 ```
 778 Value (string):
 779 ```
 780 <enabled/> or <disabled/>
 781 ```
 782 #### macOS
 783 ```
 784 <dict>
 785   <key>Cookies</key>
 786   <dict>
 787     <key>Allow</key>
 788     <array>
 789       <string>http://example.com</string>
 790     </array>
 791     <key>AllowSession</key>
 792     <array>
 793       <string>http://example.edu</string>
 794     </array>
 795     <key>Block</key>
 796     <array>
 797       <string>http://example.org</string>
 798     </array>
 799     <key>Default</key>
 800     <true/> | <false/>
 801     <key>AcceptThirdParty</key>
 802     <string>always | never | from-visited</string>
 803     <key>ExpireAtSessionEnd</key>
 804     <true/> | <false/>
 805     <key>RejectTracker</key>
 806     <true/> | <false/>
 807     <key>Locked</key>
 808     <true/> | <false/>
 809   </dict>
 810 </dict>
 811 ```
 812 #### policies.json
 813 ```
 814 {
 815   "policies": {
 816     "Cookies": {
 817       "Allow": ["http://example.org/"],
 818       "AllowSession": ["http://example.edu/"],
 819       "Block": ["http://example.edu/"],
 820       "Default": true | false,
 821       "AcceptThirdParty": "always" | "never" | "from-visited",
 822       "ExpireAtSessionEnd": true | false,
 823       "RejectTracker": true | false,
 824       "Locked": true | false
 825     }
 826   }
 827 }
 828 ```
 829 ### DisableSetDesktopBackground
 830 Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
 831
 832 **Compatibility:** Firefox 60, Firefox ESR 60\
 833 **CCK2 Equivalent:** `removeSetDesktopBackground`\
 834 **Preferences Affected:** N/A
 835
 836 #### Windows (GPO)
 837 ```
 838 Software\Policies\Mozilla\Firefox\DisableSetDesktopBackground = 0x1 | 0x0
 839 ```
 840 #### Windows (Intune)
 841 OMA-URI:
 842 ```
 843 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSetDesktopBackground
 844 ```
 845 Value (string):
 846 ```
 847 <enabled/> or <disabled/>
 848 ```
 849 #### macOS
 850 ```
 851 <dict>
 852   <key>DisableSetDesktopBackground</key>
 853   <true/> | <false/>
 854 </dict>
 855 ```
 856 #### policies.json
 857 ```
 858 {
 859   "policies": {
 860     "DisableSetDesktopBackground": true | false
 861   }
 862 }
 863 ```
 864 ### DisableMasterPasswordCreation
 865 Remove the master password functionality.
 866
 867 If this value is true, it works the same as setting [`PrimaryPassword`](#primarypassword) to false and removes the primary password functionality.
 868
 869 If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.
 870
 871 **Compatibility:** Firefox 60, Firefox ESR 60\
 872 **CCK2 Equivalent:** `noMasterPassword`\
 873 **Preferences Affected:** N/A
 874
 875 #### Windows (GPO)
 876 ```
 877 Software\Policies\Mozilla\Firefox\DisableMasterPasswordCreation = 0x1 | 0x0
 878 ```
 879 #### Windows (Intune)
 880 OMA-URI:
 881 ```
 882 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableMasterPasswordCreation
 883 ```
 884 Value (string):
 885 ```
 886 <enabled/> or <disabled/>
 887 ```
 888 #### macOS
 889 ```
 890 <dict>
 891   <key>DisableMasterPasswordCreation</key>
 892   <true/> | <false/>
 893 </dict>
 894 ```
 895 #### policies.json
 896 ```
 897 {
 898   "policies": {
 899     "DisableMasterPasswordCreation": true | false
 900   }
 901 }
 902 ```
 903 ### DisableAppUpdate
 904 Turn off application updates.
 905
 906 **Compatibility:** Firefox 60, Firefox ESR 60\
 907 **CCK2 Equivalent:** `disableFirefoxUpdates`\
 908 **Preferences Affected:** N/A
 909
 910 #### Windows (GPO)
 911 ```
 912 Software\Policies\Mozilla\Firefox\DisableAppUpdate = 0x1 | 0x0
 913 ```
 914 #### Windows (Intune)
 915 OMA-URI:
 916 ```
 917 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableAppUpdate
 918 ```
 919 Value (string):
 920 ```
 921 <enabled/> or <disabled/>
 922 ```
 923 #### macOS
 924 ```
 925 <dict>
 926   <key>DisableAppUpdate</key>
 927   <true/> | <false/>
 928 </dict>
 929 ```
 930 #### policies.json
 931 ```
 932 {
 933   "policies": {
 934     "DisableAppUpdate": true | false
 935   }
 936 }
 937 ```
 938 ### DisableBuiltinPDFViewer
 939 Disable the built in PDF viewer. PDF files are downloaded and sent externally.
 940
 941 **Compatibility:** Firefox 60, Firefox ESR 60\
 942 **CCK2 Equivalent:** `disablePDFjs`\
 943 **Preferences Affected:** `pdfjs.disabled`
 944
 945 #### Windows (GPO)
 946 ```
 947 Software\Policies\Mozilla\Firefox\DisableBuiltinPDFViewer = 0x1 | 0x0
 948 ```
 949 #### Windows (Intune)
 950 OMA-URI:
 951 ```
 952 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableBuiltinPDFViewer
 953 ```
 954 Value (string):
 955 ```
 956 <enabled/> or <disabled/>
 957 ```
 958 #### macOS
 959 ```
 960 <dict>
 961   <key>DisableBuiltinPDFViewer</key>
 962   <true/> | <false/>
 963 </dict>
 964 ```
 965 #### policies.json
 966 ```
 967 {
 968   "policies": {
 969     "DisableBuiltinPDFViewer": true | false
 970   }
 971 }
 972 ```
 973 ### DisabledCiphers
 974 Disable specific cryptographic ciphers.
 975
 976 ---
 977 **Note:**
 978
 979 This policy was updated in Firefox 78 to allow enabling ciphers as well. Setting the value to true disables the cipher, setting the value to false enables the cipher. Previously setting the value to true or false disabled the cipher.
 980
 981 ---
 982 **Compatibility:** Firefox 76, Firefox ESR 68.8 (TLS_RSA_WITH_AES_128_GCM_SHA256 and TLS_RSA_WITH_AES_256_GCM_SHA384 were added in Firefox 78)\
 983 **CCK2 Equivalent:** N/A\
 984 **Preferences Affected:** N/A
 985
 986 #### Windows (GPO)
 987 ```
 988 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
 989 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
 990 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
 991 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
 992 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
 993 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
 994 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
 995 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
 996 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_3DES_EDE_CBC_SHA = 0x1 | 0x0
 997 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
 998 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_256_GCM_SHA384 = 0x1 | 0x0
 999 ```
1000 #### Windows (Intune)
1001 OMA-URI:
1002 ```
1003 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
1004 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
1005 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
1006 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
1007 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
1008 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
1009 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_128_CBC_SHA
1010 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_256_CBC_SHA
1011 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_3DES_EDE_CBC_SHA
1012 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_128_GCM_SHA256
1013 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_256_GCM_SHA384
1014 ```
1015 Value (string):
1016 ```
1017 <enabled/> or <disabled/>
1018 ```
1019 #### macOS
1020 ```
1021 <dict>
1022   <key>DisabledCiphers</key>
1023     <dict>
1024       <key>TLS_DHE_RSA_WITH_AES_128_CBC_SHA</key>
1025       <true/> | <false/>
1026       <key>TLS_DHE_RSA_WITH_AES_256_CBC_SHA</key>
1027       <true/> | <false/>
1028       <key>TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA</key>
1029       <true/> | <false/>
1030       <key>TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA</key>
1031       <true/> | <false/>
1032       <key>TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256</key>
1033       <true/> | <false/>
1034       <key>TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256</key>
1035       <true/> | <false/>
1036       <key>TLS_RSA_WITH_AES_128_CBC_SHA</key>
1037       <true/> | <false/>
1038       <key>TLS_RSA_WITH_AES_256_CBC_SHA</key>
1039       <true/> | <false/>
1040       <key>TLS_RSA_WITH_3DES_EDE_CBC_SHA</key>
1041       <true/> | <false/>
1042       <key>TLS_RSA_WITH_AES_128_GCM_SHA256</key>
1043       <true/> | <false/>
1044       <key>TLS_RSA_WITH_AES_256_GCM_SHA384</key>
1045       <true/> | <false/>
1046     </dict>
1047 </dict>
1048 ```
1049 #### policies.json
1050 ```
1051 {
1052   "policies": {
1053     "DisabledCiphers" {
1054       "TLS_DHE_RSA_WITH_AES_128_CBC_SHA": true | false,
1055       "TLS_DHE_RSA_WITH_AES_256_CBC_SHA": true | false,
1056       "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA": true | false,
1057       "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA": true | false,
1058       "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256": true | false,
1059       "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": true | false,
1060       "TLS_RSA_WITH_AES_128_CBC_SHA": true | false,
1061       "TLS_RSA_WITH_AES_256_CBC_SHA": true | false,
1062       "TLS_RSA_WITH_3DES_EDE_CBC_SHA": true | false
1063       "TLS_RSA_WITH_AES_128_GCM_SHA256": true | false
1064       "TLS_RSA_WITH_AES_256_GCM_SHA384": true | false
1065     }
1066   }
1067 }
1068 ```
1069 ### DisableDefaultBrowserAgent
1070 Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.
1071
1072 **Compatibility:** Firefox 75, Firefox ESR 68.7 (Windows only)\
1073 **CCK2 Equivalent:** N/A\
1074 **Preferences Affected:** N/A
1075
1076 #### Windows (GPO)
1077 ```
1078 Software\Policies\Mozilla\Firefox\DisableDefaultBrowserAgent = 0x1 | 0x0
1079 ```
1080 #### Windows (Intune)
1081 OMA-URI:
1082 ```
1083 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDefaultBrowserAgent
1084 ```
1085 Value (string):
1086 ```
1087 <enabled/> or <disabled/>
1088 ```
1089 #### policies.json
1090 ```
1091 {
1092   "policies": {
1093     "DisableDefaultBrowserAgent": true | false
1094   }
1095 }
1096 ```
1097 ### DisableDeveloperTools
1098 Remove access to all developer tools.
1099
1100 **Compatibility:** Firefox 60, Firefox ESR 60\
1101 **CCK2 Equivalent:** `removeDeveloperTools`\
1102 **Preferences Affected:** `devtools.policy.disabled`
1103
1104 #### Windows (GPO)
1105 ```
1106 Software\Policies\Mozilla\Firefox\DisableDeveloperTools = 0x1 | 0x0`
1107 ```
1108 #### Windows (Intune)
1109 OMA-URI:
1110 ```
1111 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDeveloperTools
1112 ```
1113 Value (string):
1114 ```
1115 <enabled/> or <disabled/>
1116 ```
1117 #### macOS
1118 ```
1119 <dict>
1120   <key>DisableDeveloperTools</key>
1121   <true/> | <false/>
1122 </dict>
1123 ```
1124 #### policies.json
1125 ```
1126 {
1127   "policies": {
1128     "DisableDeveloperTools": true | false
1129   }
1130 }
1131 ```
1132 ### DisableFeedbackCommands
1133 Disable the menus for reporting sites (Submit Feedback, Report Deceptive Site).
1134
1135 **Compatibility:** Firefox 60, Firefox ESR 60\
1136 **CCK2 Equivalent:** N/A\
1137 **Preferences Affected:** N/A
1138
1139 #### Windows (GPO)
1140 ```
1141 Software\Policies\Mozilla\Firefox\DisableFeedbackCommands = 0x1 | 0x0
1142 ```
1143 #### Windows (Intune)
1144 OMA-URI:
1145 ```
1146 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFeedbackCommands
1147 ```
1148 Value (string):
1149 ```
1150 <enabled/> or <disabled/>
1151 ```
1152 #### macOS
1153 ```
1154 <dict>
1155   <key>DisableFeedbackCommands</key>
1156   <true/> | <false/>
1157 </dict>
1158 ```
1159 #### policies.json
1160 ```
1161 {
1162   "policies": {
1163     "DisableFeedbackCommands": true | false
1164   }
1165 }
1166 ```
1167 ### DisableFirefoxScreenshots
1168 Remove access to Firefox Screenshots.
1169
1170 **Compatibility:** Firefox 60, Firefox ESR 60\
1171 **CCK2 Equivalent:** N/A\
1172 **Preferences Affected:** `extensions.screenshots.disabled`
1173
1174 #### Windows (GPO)
1175 ```
1176 Software\Policies\Mozilla\Firefox\DisableFirefoxScreenshots = 0x1 | 0x0
1177 ```
1178 #### Windows (Intune)
1179 OMA-URI:
1180 ```
1181 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxScreenshots
1182 ```
1183 Value (string):
1184 ```
1185 <enabled/> or <disabled/>
1186 ```
1187 #### macOS
1188 ```
1189 <dict>
1190   <key>DisableFirefoxScreenshots</key>
1191   <true/> | <false/>
1192 </dict>
1193 ```
1194 #### policies.json
1195 ```
1196 {
1197   "policies": {
1198     "DisableFirefoxScreenshots": true | false
1199   }
1200 }
1201 ```
1202 ### DisableFirefoxAccounts
1203 Disable Firefox Accounts integration (Sync).
1204
1205 **Compatibility:** Firefox 60, Firefox ESR 60\
1206 **CCK2 Equivalent:** `disableSync`\
1207 **Preferences Affected:** `identity.fxaccounts.enabled`
1208
1209 #### Windows (GPO)
1210 ```
1211 Software\Policies\Mozilla\Firefox\DisableFirefoxAccounts = 0x1 | 0x0
1212 ```
1213 #### Windows (Intune)
1214 OMA-URI:
1215 ```
1216 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxAccounts
1217 ```
1218 Value (string):
1219 ```
1220 <enabled/> or <disabled/>
1221 ```
1222 #### macOS
1223 ```
1224 <dict>
1225   <key>DisableFirefoxAccounts</key>
1226   <true/> | <false/>
1227 </dict>
1228 ```
1229 #### policies.json
1230 ```
1231 {
1232   "policies": {
1233     "DisableFirefoxAccounts": true | false
1234   }
1235 }
1236 ```
1237 ### DisableFirefoxStudies
1238 Disable Firefox studies (Shield).
1239
1240 **Compatibility:** Firefox 60, Firefox ESR 60\
1241 **CCK2 Equivalent:** N/A\
1242 **Preferences Affected:** N/A
1243
1244 #### Windows (GPO)
1245 ```
1246 Software\Policies\Mozilla\Firefox\DisableFirefoxStudies = 0x1 | 0x0
1247 ```
1248 #### Windows (Intune)
1249 OMA-URI:
1250 ```
1251 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxStudies
1252 ```
1253 Value (string):
1254 ```
1255 <enabled/> or <disabled/>
1256 ```
1257 #### macOS
1258 ```
1259 <dict>
1260   <key>DisableFirefoxStudies</key>
1261   <true/> | <false/>
1262 </dict>
1263 ```
1264 #### policies.json
1265 ```
1266 {
1267   "policies": {
1268     "DisableFirefoxStudies": true | false
1269   }
1270 }
1271 ```
1272 ### DisableForgetButton
1273 Disable the "Forget" button.
1274
1275 **Compatibility:** Firefox 60, Firefox ESR 60\
1276 **CCK2 Equivalent:** `disableForget`\
1277 **Preferences Affected:** N/A
1278
1279 #### Windows (GPO)
1280 ```
1281 Software\Policies\Mozilla\Firefox\DisableForgetButton = 0x1 | 0x0
1282 ```
1283 #### Windows (Intune)
1284 OMA-URI:
1285 ```
1286 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableForgetButton
1287 ```
1288 Value (string):
1289 ```
1290 <enabled/> or <disabled/>
1291 ```
1292 #### macOS
1293 ```
1294 <dict>
1295   <key>DisableForgetButton</key>
1296   <true/> | <false/>
1297 </dict>
1298 ```
1299 #### policies.json
1300 ```
1301 {
1302   "policies": {
1303     "DisableForgetButton": true | false
1304   }
1305 }
1306 ```
1307 ### DisableFormHistory
1308 Turn off saving information on web forms and the search bar.
1309
1310 **Compatibility:** Firefox 60, Firefox ESR 60\
1311 **CCK2 Equivalent:** `disableFormFill`\
1312 **Preferences Affected:** ` browser.formfill.enable`
1313
1314 #### Windows (GPO)
1315 ```
1316 Software\Policies\Mozilla\Firefox\DisableFormHistory = 0x1 | 0x0
1317 ```
1318 #### Windows (Intune)
1319 OMA-URI:
1320 ```
1321 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFormHistory
1322 ```
1323 Value (string):
1324 ```
1325 <enabled/> or <disabled/>
1326 ```
1327 #### macOS
1328 ```
1329 <dict>
1330   <key>DisableFormHistory</key>
1331   <true/> | <false/>
1332 </dict>
1333 ```
1334 #### policies.json
1335 ```
1336 {
1337   "policies": {
1338     "DisableFormHistory": true | false
1339   }
1340 }
1341 ```
1342 ### DisablePasswordReveal
1343 Do not allow passwords to be shown in saved logins
1344
1345 **Compatibility:** Firefox 71, Firefox ESR 68.3\
1346 **CCK2 Equivalent:** N/A
1347 **Preferences Affected:** N/A
1348
1349 #### Windows (GPO)
1350 ```
1351 Software\Policies\Mozilla\Firefox\DisablePasswordReveal = 0x1 | 0x0
1352 ```
1353 #### Windows (Intune)
1354 OMA-URI:
1355 ```
1356 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePasswordReveal
1357 ```
1358 Value (string):
1359 ```
1360 <enabled/> or <disabled/>
1361 ```
1362 #### macOS
1363 ```
1364 <dict>
1365   <key>DisablePasswordReveal</key>
1366   <true/> | <false/>
1367 </dict>
1368 ```
1369 #### policies.json
1370 ```
1371 {
1372   "policies": {
1373     "DisablePasswordReveal": true | false
1374   }
1375 }
1376 ```
1377 ### DisablePocket
1378 Remove Pocket in the Firefox UI. It does not remove it from the new tab page.
1379
1380 **Compatibility:** Firefox 60, Firefox ESR 60\
1381 **CCK2 Equivalent:** `disablePocket`\
1382 **Preferences Affected:** `extensions.pocket.enabled`
1383
1384 #### Windows (GPO)
1385 ```
1386 Software\Policies\Mozilla\Firefox\DisablePocket = 0x1 | 0x0
1387 ```
1388 #### Windows (Intune)
1389 OMA-URI:
1390 ```
1391 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePocket
1392 ```
1393 Value (string):
1394 ```
1395 <enabled/> or <disabled/>
1396 ```
1397 #### macOS
1398 ```
1399 <dict>
1400   <key>DisablePocket</key>
1401   <true/> | <false/>
1402 </dict>
1403 ```
1404 #### policies.json
1405 ```
1406 {
1407   "policies": {
1408     "DisablePocket": true | false
1409   }
1410 }
1411 ```
1412 ### DisablePrivateBrowsing
1413 Remove access to private browsing.
1414
1415 **Compatibility:** Firefox 60, Firefox ESR 60\
1416 **CCK2 Equivalent:** `disablePrivateBrowsing`\
1417 **Preferences Affected:** N/A
1418
1419 #### Windows (GPO)
1420 ```
1421 Software\Policies\Mozilla\Firefox\DisablePrivateBrowsing = 0x1 | 0x0
1422 ```
1423 #### Windows (Intune)
1424 OMA-URI:
1425 ```
1426 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePrivateBrowsing
1427 ```
1428 Value (string):
1429 ```
1430 <enabled/> or <disabled/>
1431 ```
1432 #### macOS
1433 ```
1434 <dict>
1435   <key>DisablePrivateBrowsing</key>
1436   <true/> | <false/>
1437 </dict>
1438 ```
1439 #### policies.json
1440 ```
1441 {
1442   "policies": {
1443     "DisablePrivateBrowsing": true | false
1444   }
1445 }
1446 ```
1447 ### DisableProfileImport
1448 Disables the "Import data from another browser" option in the bookmarks window.
1449
1450 **Compatibility:** Firefox 60, Firefox ESR 60\
1451 **CCK2 Equivalent:** N/A\
1452 **Preferences Affected:** N/A
1453
1454 #### Windows (GPO)
1455 ```
1456 Software\Policies\Mozilla\Firefox\DisableProfileImport = 0x1 | 0x0
1457 ```
1458 #### Windows (Intune)
1459 OMA-URI:
1460 ```
1461 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileImport
1462 ```
1463 Value (string):
1464 ```
1465 <enabled/> or <disabled/>
1466 ```
1467 #### macOS
1468 ```
1469 <dict>
1470   <key>DisableProfileImport</key>
1471   <true/> | <false/>
1472 </dict>
1473 ```
1474 #### policies.json
1475 ```
1476 {
1477   "policies": {
1478     "DisableProfileImport": true | false
1479   }
1480 }
1481 ```
1482 ### DisableProfileRefresh
1483 Disable the Refresh Firefox button on about:support and support.mozilla.org, as well as the prompt that displays offering to refresh Firefox when you haven't used it in a while.
1484
1485 **Compatibility:** Firefox 60, Firefox ESR 60\
1486 **CCK2 Equivalent:** `disableResetFirefox`\
1487 **Preferences Affected:** `browser.disableResetPrompt`
1488
1489 #### Windows (GPO)
1490 ```
1491 Software\Policies\Mozilla\Firefox\DisableProfileRefresh = 0x1 | 0x0
1492 ```
1493 #### Windows (Intune)
1494 OMA-URI:
1495 ```
1496 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileRefresh
1497 ```
1498 Value (string):
1499 ```
1500 <enabled/> or <disabled/>
1501 ```
1502 #### macOS
1503 ```
1504 <dict>
1505   <key>DisableProfileRefresh</key>
1506   <true/> | <false/>
1507 </dict>
1508 ```
1509 #### policies.json
1510 ```
1511 {
1512   "policies": {
1513     "DisableProfileRefresh": true | false
1514   }
1515 }
1516 ```
1517 ### DisableSafeMode
1518 Disable safe mode within the browser.
1519
1520 On Windows, this disables safe mode via the command line as well.
1521
1522 **Compatibility:** Firefox 60, Firefox ESR 60 (Windows, macOS)\
1523 **CCK2 Equivalent:** `disableSafeMode`\
1524 **Preferences Affected:** N/A
1525
1526 #### Windows (GPO)
1527 ```
1528 Software\Policies\Mozilla\Firefox\DisableSafeMode = 0x1 | 0x0
1529 ```
1530 #### Windows (Intune)
1531 OMA-URI:
1532 ```
1533 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSafeMode
1534 ```
1535 Value (string):
1536 ```
1537 <enabled/> or <disabled/>
1538 ```
1539 #### macOS
1540 ```
1541 <dict>
1542   <key>DisableSafeMode</key>
1543   <true/> | <false/>
1544 </dict>
1545 ```
1546 #### policies.json
1547 ```
1548 {
1549   "policies": {
1550     "DisableSafeMode": true | false
1551   }
1552 }
1553 ```
1554 ### DisableSecurityBypass
1555 Prevent the user from bypassing security in certain cases.
1556
1557 `InvalidCertificate` prevents adding an exception when an invalid certificate is shown.
1558
1559 `SafeBrowsing` prevents selecting "ignore the risk" and visiting a harmful site anyway.
1560
1561 **Compatibility:** Firefox 60, Firefox ESR 60\
1562 **CCK2 Equivalent:** N/A\
1563 **Preferences Affected:** `security.certerror.hideAddException`,`browser.safebrowsing.allowOverride`
1564
1565 #### Windows (GPO)
1566 ```
1567 Software\Policies\Mozilla\Firefox\DisableSecurityBypass\InvalidCertificate = 0x1 | 0x0
1568 Software\Policies\Mozilla\Firefox\DisableSecurityBypass\SafeBrowsing = 0x1 | 0x0
1569 ```
1570 #### Windows (Intune)
1571 OMA-URI:
1572 ```
1573 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_InvalidCertificate
1574 ```
1575 Value (string):
1576 ```
1577 <enabled/> or <disabled/>
1578 ```
1579 OMA-URI:
1580 ```
1581 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_SafeBrowsing
1582 ```
1583 Value (string):
1584 ```
1585 <enabled/> or <disabled/>
1586 ```
1587
1588 #### macOS
1589 ```
1590 <dict>
1591   <key>DisableSecurityBypass</key>
1592   <dict>
1593     <key>InvalidCertificate</key>
1594     <true/> | <false/>
1595     <key>SafeBrowsing</key>
1596     <true/> | <false/>
1597   </dict>
1598 </dict>
1599 ```
1600 #### policies.json
1601 ```
1602 {
1603   "policies": {
1604     "DisableSecurityBypass": {
1605       "InvalidCertificate": true | false,
1606       "SafeBrowsing": true | false
1607     }
1608   }
1609 }
1610 ```
1611 ### DisableSystemAddonUpdate
1612 Prevent system add-ons from being installed or update.
1613
1614 **Compatibility:** Firefox 60, Firefox ESR 60\
1615 **CCK2 Equivalent:** N/A\
1616 **Preferences Affected:** N/A
1617
1618 #### Windows (GPO)
1619 ```
1620 Software\Policies\Mozilla\Firefox\DisableSystemAddonUpdate = 0x1 | 0x0
1621 ```
1622 #### Windows (Intune)
1623 OMA-URI:
1624 ```
1625 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSystemAddonUpdate
1626 ```
1627 Value (string):
1628 ```
1629 <enabled/> or <disabled/>
1630 ```
1631 #### macOS
1632 ```
1633 <dict>
1634   <key>DisableSystemAddonUpdate</key>
1635   <true/> | <false/>
1636 </dict>
1637 ```
1638 #### policies.json
1639 ```
1640 {
1641   "policies": {
1642     "DisableSystemAddonUpdate": true | false
1643   }
1644 }
1645 ```
1646 ### DisableTelemetry
1647 Prevent the upload of telemetry data.
1648
1649 Mozilla recommends that you do not disable telemetry. Information collected through telemetry helps us build a better product for businesses like yours.
1650
1651 **Compatibility:** Firefox 60, Firefox ESR 60\
1652 **CCK2 Equivalent:** `disableTelemetry`\
1653 **Preferences Affected:** `datareporting.healthreport.uploadEnabled,datareporting.policy.dataSubmissionEnabled`
1654
1655 #### Windows (GPO)
1656 ```
1657 Software\Policies\Mozilla\Firefox\DisableTelemetry = 0x1 | 0x0
1658 ```
1659 #### Windows (Intune)
1660 OMA-URI:
1661 ```
1662 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableTelemetry
1663 ```
1664 Value (string):
1665 ```
1666 <enabled/> or <disabled/>
1667 ```
1668 #### macOS
1669 ```
1670 <dict>
1671   <key>DisableTelemetry</key>
1672   <true/> | <false/>
1673 </dict>
1674 ```
1675 #### policies.json
1676 ```
1677 {
1678   "policies": {
1679     "DisableTelemetry": true | false
1680   }
1681 }
1682 ```
1683 ### DisplayBookmarksToolbar
1684 Set the initial state of the bookmarks toolbar. A user can still hide it and it will stay hidden.
1685
1686 **Compatibility:** Firefox 60, Firefox ESR 60\
1687 **CCK2 Equivalent:** `displayBookmarksToolbar`\
1688 **Preferences Affected:** N/A
1689
1690 #### Windows (GPO)
1691 ```
1692 Software\Policies\Mozilla\Firefox\DisplayBookmarksToolbar = 0x1 | 0x0
1693 ```
1694 #### Windows (Intune)
1695 OMA-URI:
1696 ```
1697 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayBookmarksToolbar
1698 ```
1699 Value (string):
1700 ```
1701 <enabled/> or <disabled/>
1702 ```
1703 #### macOS
1704 ```
1705 <dict>
1706   <key>DisplayBookmarksToolbar</key>
1707   <true/> | <false/>
1708 </dict>
1709 ```
1710 #### policies.json
1711 ```
1712 {
1713   "policies": {
1714     "DisplayBookmarksToolbar": true | false
1715   }
1716 }
1717 ```
1718 ### DisplayMenuBar (Deprecated)
1719 Set the initial state of the menubar. A user can still hide it and it will stay hidden.
1720
1721 **Compatibility:** Firefox 60, Firefox ESR 60 (Windows, some Linux)\
1722 **CCK2 Equivalent:** `displayMenuBar`\
1723 **Preferences Affected:** N/A
1724
1725 #### Windows (GPO)
1726 ```
1727 Software\Policies\Mozilla\Firefox\DisplayMenuBar = 0x1 | 0x0
1728 ```
1729 #### macOS
1730 ```
1731 <dict>
1732   <key>DisplayMenuBar</key>
1733   <true/> | <false/>
1734 </dict>
1735 ```
1736 #### policies.json
1737 ```
1738 {
1739   "policies": {
1740     "DisplayMenuBar": true | false
1741   }
1742 }
1743 ```
1744 ### DisplayMenuBar
1745 Set the state of the menubar.
1746
1747 `always` means the menubar is shown and cannot be hidden.
1748
1749 `never` means the menubar is hidden and cannot be shown.
1750
1751 `default-on` means the menubar is on by default but can be hidden.
1752
1753 `default-off` means the menubar is off by default but can be shown.
1754
1755 **Compatibility:** Firefox 73, Firefox ESR 68.5 (Windows, some Linux)\
1756 **CCK2 Equivalent:** `displayMenuBar`\
1757 **Preferences Affected:** N/A
1758
1759 #### Windows (GPO)
1760 ```
1761 Software\Policies\Mozilla\Firefox\DisplayMenuBar = "always", "never", "default-on", "default-off"
1762 ```
1763 #### Windows (Intune)
1764 OMA-URI:
1765 ```
1766 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayMenuBar_Enum
1767 ```
1768 Value (string):
1769 ```
1770 <enabled/>
1771 <data id="DisplayMenuBar" value="always | never | default-on | default-off"/>
1772 ```
1773 #### macOS
1774 ```
1775 <dict>
1776   <key>DisplayMenuBar</key>
1777   <string>always | never | default-on | default-off</string>
1778 </dict>
1779 ```
1780 #### policies.json
1781 ```
1782 {
1783   "policies": {
1784     "DisplayMenuBar": "always", "never", "default-on", "default-off"
1785   }
1786 }
1787 ```
1788 ### DNSOverHTTPS
1789 Configure DNS over HTTPS.
1790
1791 `Enabled` determines whether DNS over HTTPS is enabled
1792
1793 `ProviderURL` is a URL to another provider.
1794
1795 `Locked` prevents the user from changing DNS over HTTPS preferences.
1796
1797 `ExcludedDomains` excludes domains from DNS over HTTPS.
1798
1799 **Compatibility:** Firefox 63, Firefox ESR 68 (ExcludedDomains added in 75/68.7)\
1800 **CCK2 Equivalent:** N/A\
1801 **Preferences Affected:** `network.trr.mode`,`network.trr.uri`
1802
1803 #### Windows (GPO)
1804 ```
1805 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Enabled = 0x1 | 0x0
1806 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
1807 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Locked = 0x1 | 0x0
1808 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ExcludedDomains\1 = "example.com"
1809 ```
1810 #### Windows (Intune)
1811 OMA-URI:
1812 ```
1813 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Enabled
1814 ```
1815 Value (string):
1816 ```
1817 <enabled/> or <disabled/>
1818 ```
1819 OMA-URI:
1820 ```
1821 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ProviderURL
1822 ```
1823 Value (string):
1824 ```
1825 <enabled/>
1826 <data id="String" value="URL_TO_ALTERNATE_PROVIDER"/>
1827 ```
1828 OMA-URI:
1829 ```
1830 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Locked
1831 ```
1832 Value (string):
1833 ```
1834 <enabled/> or <disabled/>
1835 ```
1836 OMA-URI:
1837 ```
1838 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ExcludedDomains
1839 ```
1840 Value (string):
1841 ```
1842 <enabled/>
1843 <data id="List" value="1&#xF000;example.com"/>
1844 ```
1845 #### macOS
1846 ```
1847 <dict>
1848   <key>DNSOverHTTPS</key>
1849   <dict>
1850     <key>Enabled</key>
1851     <true/> | <false/>
1852     <key>ProviderURL</key>
1853     <string>URL_TO_ALTERNATE_PROVIDER</string>
1854     <key>Locked</key>
1855     <true/> | <false/>
1856     <key>ExcludedDomains</key>
1857     <array>
1858       <string>example.com</string>
1859     </array>
1860   </dict>
1861 </dict>
1862 ```
1863 #### policies.json
1864 ```
1865 {
1866   "policies": {
1867     "DNSOverHTTPS": {
1868       "Enabled":  true | false,
1869       "ProviderURL": "URL_TO_ALTERNATE_PROVIDER",
1870       "Locked": true | false,
1871       "ExcludedDomains": ["example.com"]
1872     }
1873   }
1874 }
1875 ```
1876 ### DontCheckDefaultBrowser
1877 Don't check if Firefox is the default browser at startup.
1878
1879 **Compatibility:** Firefox 60, Firefox ESR 60\
1880 **CCK2 Equivalent:** `dontCheckDefaultBrowser`\
1881 **Preferences Affected:** `browser.shell.checkDefaultBrowser`
1882
1883 #### Windows (GPO)
1884 ```
1885 Software\Policies\Mozilla\Firefox\DontCheckDefaultBrowser = 0x1 | 0x0
1886 ```
1887 #### Windows (Intune)
1888 OMA-URI:
1889 ```
1890 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DontCheckDefaultBrowser
1891 ```
1892 Value (string):
1893 ```
1894 <enabled/> or <disabled/>
1895 ```
1896 #### macOS
1897 ```
1898 <dict>
1899   <key>DontCheckDefaultBrowser</key>
1900   <true/> | <false/>
1901 </dict>
1902 ```
1903 #### policies.json
1904 ```
1905 {
1906   "policies": {
1907     "DontCheckDefaultBrowser": true | false
1908   }
1909 }
1910 ```
1911 ### DefaultDownloadDirectory
1912 Set the default download directory.
1913
1914 You can use ${home} for the native home directory.
1915
1916 **Compatibility:** Firefox 68, Firefox ESR 68\
1917 **CCK2 Equivalent:** N/A\
1918 **Preferences Affected:** `browser.download.dir`,`browser.download.folderList`
1919
1920 #### Windows (GPO)
1921 ```
1922 Software\Policies\Mozilla\Firefox\DefaultDownloadDirectory = "${home}\Downloads"
1923 ```
1924 #### Windows (Intune)
1925 OMA-URI:
1926 ```
1927 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DefaultDownloadDirectory
1928 ```
1929 Value (string):
1930 ```
1931 <enabled/>
1932 <data id="Preferences_String" value="${home}\Downloads"/>
1933 ```
1934 #### macOS
1935 ```
1936 <dict>
1937   <key>DefaultDownloadDirectory</key>
1938   <string>${home}/Downloads</string>
1939 </dict>
1940 ```
1941 #### policies.json (macOS and Linux)
1942 ```
1943 {
1944   "policies": {
1945     "DefaultDownloadDirectory": "${home}/Downloads"
1946 }
1947 ```
1948 #### policies.json (Windows)
1949 ```
1950 {
1951   "policies": {
1952     "DefaultDownloadDirectory": "${home}\\Downloads"
1953 }
1954 ```
1955 ### DownloadDirectory
1956 Set and lock the download directory.
1957
1958 You can use ${home} for the native home directory.
1959
1960 **Compatibility:** Firefox 68, Firefox ESR 68\
1961 **CCK2 Equivalent:** N/A\
1962 **Preferences Affected:** `browser.download.dir`,`browser.download.folderList`,`browser.download.useDownloadDir`
1963
1964 #### Windows (GPO)
1965 ```
1966 Software\Policies\Mozilla\Firefox\DownloadDirectory = "${home}\Downloads"
1967 ```
1968 #### Windows (Intune)
1969 OMA-URI:
1970 ```
1971 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DownloadDirectory
1972 ```
1973 Value (string):
1974 ```
1975 <enabled/>
1976 <data id="Preferences_String" value="${home}\Downloads"/>
1977 ```
1978 #### macOS
1979 ```
1980 <dict>
1981   <key>DownloadDirectory</key>
1982   <string>${home}/Downloads</string>
1983 </dict>
1984 ```
1985 #### policies.json (macOS and Linux)
1986 ```
1987 {
1988   "policies": {
1989     "DownloadDirectory": "${home}/Downloads"
1990 }
1991 ```
1992 #### policies.json (Windows)
1993 ```
1994 {
1995   "policies": {
1996     "DownloadDirectory": "${home}\\Downloads"
1997 }
1998 ```
1999 ### EnableTrackingProtection
2000 Configure tracking protection.
2001
2002 If this policy is not configured, tracking protection is not enabled by default in the browser, but it is enabled by default in private browsing and the user can change it.
2003
2004 If `Value` is set to false, tracking protection is disabled and locked in both the regular browser and private browsing.
2005
2006 If `Value` is set to true, tracking protection is enabled by default in both the regular browser and private browsing and the `Locked` value determines whether or not a user can change it.
2007
2008 If `Cryptomining` is set to true, cryptomining scripts on websites are blocked.
2009
2010 If `Fingerprinting` is set to true, fingerprinting scripts on websites are blocked.
2011
2012 `Exceptions` are origins for which tracking protection is not enabled.
2013
2014 **Compatibility:** Firefox 60, Firefox ESR 60 (Cryptomining and Fingerprinting added in 70/68.2, Exceptions added in 73/68.5)\
2015 **CCK2 Equivalent:** N/A\
2016 **Preferences Affected:** `privacy.trackingprotection.enabled`,`privacy.trackingprotection.pbmode.enabled`,`privacy.trackingprotection.cryptomining.enabled`,`privacy.trackingprotection.fingerprinting.enabled`
2017
2018 #### Windows (GPO)
2019 ```
2020 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Value = 0x1 | 0x0
2021 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Locked = 0x1 | 0x0
2022 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Cryptomining = 0x1 | 0x0
2023 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Fingerprinting = 0x1 | 0x0
2024 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Exceptions\1 = "https://example.com"
2025 ```
2026 #### Windows (Intune)
2027 OMA-URI:
2028 ```
2029 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/A_TrackingProtection_Value
2030 ```
2031 Value (string):
2032 ```
2033 <enabled/> or <disabled/>
2034 ```
2035 OMA-URI:
2036 ```
2037 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/B_TrackingProtection_Cryptomining
2038 ```
2039 Value (string):
2040 ```
2041 <enabled/> or <disabled/>
2042 ```
2043 OMA-URI:
2044 ```
2045 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/C_TrackingProtection_Fingerprinting
2046 ```
2047 Value (string):
2048 ```
2049 <enabled/> or <disabled/>
2050 ```
2051 OMA-URI:
2052 ```
2053 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/D_TrackingProtection_Exceptions
2054 ```
2055 Value (string):
2056 ```
2057 <data id="TrackingProtection_Exceptions" value="1&#xF000;https://example.com"/>
2058 ```
2059 OMA-URI:
2060 ```
2061 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/E_TrackingProtection_Locked
2062 ```
2063 Value (string):
2064 ```
2065 <enabled/> or <disabled/>
2066 ```
2067 #### macOS
2068 ```
2069 <dict>
2070   <key>EnableTrackingProtection</key>
2071   <dict>
2072     <key>Value</key>
2073     <true/> | <false/>
2074     <key>Locked</key>
2075     <true/> | <false/>
2076     <key>Cryptomining</key>
2077     <true/> | <false/>
2078     <key>Fingerprinting</key>
2079     <true/> | <false/>
2080     <key>Exceptions</key>
2081     <array>
2082       <string>https://example.com</string>
2083     </array>
2084   </dict>
2085 </dict>
2086 ```
2087 #### policies.json
2088 ```
2089 {
2090   "policies": {
2091     "EnableTrackingProtection": {
2092       "Value": true | false,
2093       "Locked": true | false,
2094       "Cryptomining": true | false,
2095       "Fingerprinting": true | false,
2096       "Exceptions": ["https://example.com"]
2097     }
2098 }
2099 ```
2100 ### EncryptedMediaExtensions
2101 Enable or disable Encrypted Media Extensions and optionally lock it.
2102
2103 If `Enabled` is set to false, encrypted media extensions (like Widevine) are not downloaded by Firefox unless the user consents to installing them.
2104
2105 If `Locked` is set to true and `Enabled` is set to false, Firefox will not download encrypted media extensions (like Widevine) or ask the user to install them.
2106
2107 **Compatibility:** Firefox 77, Firefox ESR 68.9\
2108 **CCK2 Equivalent:** N/A\
2109 **Preferences Affected:** `media.eme.enabled`
2110
2111 #### Windows (GPO)
2112 ```
2113 Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Enabled = 0x1 | 0x0
2114 Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Locked = 0x1 | 0x0
2115 ```
2116 #### Windows (Intune)
2117 OMA-URI:
2118 ```
2119 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Enabled
2120 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Locked
2121 ```
2122 Value (string):
2123 ```
2124 <enabled/>or <disabled/>
2125 ```
2126 #### macOS
2127 ```
2128 <dict>
2129   <key>EncryptedMediaExtensions</key>
2130   <dict>
2131     <key>Enabled</key>
2132     <true/> | <false/>
2133     <key>Locked</key>
2134     <true/> | <false/>
2135   </dict>
2136 </dict>
2137 ```
2138 #### policies.json
2139 ```
2140 {
2141   "policies": {
2142     "EncryptedMediaExtensions": {
2143       "Enabled": true | false,
2144       "Locked": true | false
2145     }
2146 }
2147 ```
2148 ### EnterprisePoliciesEnabled
2149 Enable policy support on macOS.
2150
2151 **Compatibility:** Firefox 63, Firefox ESR 60.3 (macOS only)\
2152 **CCK2 Equivalent:** N/A\
2153 **Preferences Affected:** N/A
2154
2155 #### macOS
2156 ```
2157 <dict>
2158   <key>EnterprisePoliciesEnabled</key>
2159   <true/>
2160 </dict>
2161 ```
2162 ### Extensions
2163 Control the installation, uninstallation and locking of extensions.
2164
2165 `Install` is a list of URLs or native paths for extensions to be installed.
2166
2167 `Uninstall` is a list of extension IDs that should be uninstalled if found.
2168
2169 `Locked` is a list of extension IDs that the user cannot disable or uninstall.
2170
2171 **Compatibility:** Firefox 60, Firefox ESR 60\
2172 **CCK2 Equivalent:** `addons`\
2173 **Preferences Affected:** N/A
2174
2175 #### Windows (GPO)
2176 ```
2177 Software\Policies\Mozilla\Firefox\Extensions\Install\1 = "https://addons.mozilla.org/firefox/downloads/somefile.xpi"
2178 Software\Policies\Mozilla\Firefox\Extensions\Install\2 = "//path/to/xpi"
2179 Software\Policies\Mozilla\Firefox\Extensions\Uninstall\1 = "bad_addon_id@mozilla.org"
2180 Software\Policies\Mozilla\Firefox\Extensions\Locked\1 = "addon_id@mozilla.org"
2181 ```
2182 #### Windows (Intune)
2183 OMA-URI:
2184 ```
2185 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Install
2186 ```
2187 Value (string):
2188 ```
2189 <enabled/>
2190 <data id="Extensions" value="1&#xF000;https://addons.mozilla.org/firefox/downloads/somefile.xpi&#xF000;2&#xF000;//path/to/xpi"/>
2191 ```
2192 OMA-URI:
2193 ```
2194 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Uninstall
2195 ```
2196 Value (string):
2197 ```
2198 <enabled/>
2199 <data id="Extensions" value="1&#xF000;bad_addon_id@mozilla.org"/>
2200 ```
2201 OMA-URI:
2202 ```
2203 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Locked
2204 ```
2205 Value (string):
2206 ```
2207 <enabled/>
2208 <data id="Extensions" value="1&#xF000;addon_id@mozilla.org"/>
2209 ```
2210 #### macOS
2211 ```
2212 <dict>
2213   <key>Extensions</key>
2214   <dict>
2215     <key>Install</key>
2216     <array>
2217       <string>https://addons.mozilla.org/firefox/downloads/somefile.xpi</string>
2218       <string>//path/to/xpi</string>
2219     </array>
2220     <key>Uninstall</key>
2221     <array>
2222       <string>bad_addon_id@mozilla.org</string>
2223     </array>
2224     <key>Locked</key>
2225     <array>
2226       <string>addon_id@mozilla.org</string>
2227     </array>
2228   </dict>
2229 </dict>
2230 ```
2231 #### policies.json
2232 ```
2233 {
2234   "policies": {
2235     "Extensions": {
2236       "Install": ["https://addons.mozilla.org/firefox/downloads/somefile.xpi", "//path/to/xpi"],
2237       "Uninstall": ["bad_addon_id@mozilla.org"],
2238       "Locked":  ["addon_id@mozilla.org"]
2239     }
2240   }
2241 }
2242 ```
2243 ### ExtensionSettings
2244 Manage all aspects of extensions. This policy is based heavily on the [Chrome policy](https://dev.chromium.org/administrators/policy-list-3/extension-settings-full) of the same name.
2245
2246 This policy maps an extension ID to its configuration. With an extension ID, the configuration will be applied to the specified extension only. A default configuration can be set for the special ID "*", which will apply to all extensions that don't have a custom configuration set in this policy.
2247
2248 To obtain an extension ID, install the extension and go to about:support. You will see the ID in the Extensions section. I've also created an extension that makes it easy to find the ID of extensions on AMO. You can download it [here](https://github.com/mkaply/queryamoid/releases/tag/v0.1).
2249
2250 The configuration for each extension is another dictionary that can contain the fields documented below.
2251
2252 | Name | Description |
2253 | --- | --- |
2254 | `installation_mode` | Maps to a string indicating the installation mode for the extension. The valid strings are `allowed`,`blocked`,`force_installed`, and `normal_installed`.
2255 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`allowed` | Allows the extension to be installed by the user. This is the default behavior. There is no need for an install_url; it will automatically be allowed based on the ID.
2256 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`blocked`| Blocks installation of the extension and removes it from the device if already installed.
2257 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`force_installed`| The extension is automatically installed and can't be removed by the user. This option is not valid for the default configuration and requires an install_url.
2258 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`normal_installed`| The extension is automatically installed but can be disabled by the user. This option is not valid for the default configuration and requires an install_url.
2259 | `install_url`| Maps to a URL indicating where Firefox can download a force_installed or normal_installed extension. If installing from the addons.mozilla.org, use the following URL (substituting SHORT_NAME from the URL on AMO), https://addons.mozilla.org/firefox/downloads/latest/SHORT_NAME/latest.xpi. If installing from the local file system, use a file:/// URL. Languages packs are available from https://releases.mozilla.org/pub/firefox/releases/VERSION/PLATFORM/xpi/LANGUAGE.xpi. If you need to update the extension, you can change the name of the extension and it will be automatically updated. Extensions installed from file URLs will additional be updated when their internal version changes.
2260 | `install_sources` | A list of sources from which installing extensions is allowed. **This is unnecessary if you are only allowing the installation of certain extensions by ID.** Each item in this list is an extension-style match pattern. Users will be able to easily install items from any URL that matches an item in this list. Both the location of the *.xpi file and the page where the download is started from (i.e.  the referrer) must be allowed by these patterns. This setting can be used only for the default configuration. If you want to allow the install of extensions from the recommended add-ons page, you must add `about:addons` to this list.
2261 | `allowed_types` | This setting whitelists the allowed types of extension/apps that can be installed in Firefox. The value is a list of strings, each of which should be one of the following: "extension", "theme", "dictionary", "locale" This setting can be used only for the default configuration.
2262 | `blocked_install_message` | This maps to a string specifying the error message to display to users if they're blocked from installing an extension. This setting allows you to append text to the generic error message displayed when the extension is blocked. This could be be used to direct users to your help desk, explain why a particular extension is blocked, or something else. This setting can be used only for the default configuration.
2263 | `restricted_domains` | An array of domains on which content scripts can't be run. This setting can be used only for the default configuration.
2264
2265 **Compatibility:** Firefox 69, Firefox ESR 68.1\
2266 **CCK2 Equivalent:** N/A\
2267 **Preferences Affected:** N/A
2268
2269 #### Windows (GPO)
2270 ```
2271 Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =
2272 {
2273   "*": {
2274     "blocked_install_message": "Custom error message.",
2275     "install_sources": ["about:addons","https://addons.mozilla.org/"],
2276     "installation_mode": "blocked",
2277     "allowed_types": ["extension"]
2278   },
2279   "uBlock0@raymondhill.net": {
2280     "installation_mode": "force_installed",
2281     "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2282   },
2283   "https-everywhere@eff.org": {
2284     "installation_mode": "allowed",
2285   }
2286 }
2287 ```
2288 #### Windows (Intune)
2289 OMA-URI:
2290 ```
2291 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings
2292 ```
2293 Value (string):
2294 ```
2295 <enabled/>
2296 <data id="ExtensionSettings" value='
2297 {
2298   "*": {
2299     "blocked_install_message": "Custom error message.",
2300     "install_sources": ["about:addons","https://addons.mozilla.org/"],
2301     "installation_mode": "blocked",
2302     "allowed_types": ["extension"]
2303   },
2304   "uBlock0@raymondhill.net": {
2305     "installation_mode": "force_installed",
2306     "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2307   },
2308     "https-everywhere@eff.org": {
2309     "installation_mode": "allowed",
2310   }
2311 }'/>
2312 ```
2313 #### macOS
2314 ```
2315 <dict>
2316   <key>ExtensionSettings</key>
2317   <dict>
2318     <key>*</key>
2319     <dict>
2320       <key>blocked_install_message</key>
2321       <string>Custom error message.</string>
2322       <key>install_sources</key>
2323       <array>
2324         <string>about:addons</string>
2325         <string>https://addons.mozilla.org/</string>
2326       </array>
2327       <key>installation_mode</key>
2328       <string>blocked</string>
2329       <key>allowed_types</key>
2330       <array>
2331         <string>extension</string>
2332       </array>
2333     </dict>
2334     <key>uBlock0@raymondhill.net</key>
2335     <dict>
2336       <key>installation_mode</key>
2337        <string>force_installed</string>
2338       <key>install_url</key>
2339       <string>https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi</string>
2340     </dict>
2341     <key>https-everywhere@eff.org</key>
2342     <dict>
2343       <key>installation_mode</key>
2344        <string>allowed</string>
2345     </dict>
2346   </dict>
2347 </dict>
2348 ```
2349 #### policies.json
2350 ```
2351 {
2352   "policies": {
2353     "ExtensionSettings": {
2354       "*": {
2355         "blocked_install_message": "Custom error message.",
2356         "install_sources": ["about:addons","https://addons.mozilla.org/"],
2357         "installation_mode": "blocked",
2358         "allowed_types": ["extension"]
2359       },
2360       "uBlock0@raymondhill.net": {
2361         "installation_mode": "force_installed",
2362         "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2363       },
2364       "https-everywhere@eff.org": {
2365         "installation_mode": "allowed"
2366       }
2367     }
2368   }
2369 }
2370 ```
2371 ### ExtensionUpdate
2372 Control extension updates.
2373
2374 **Compatibility:** Firefox 67, Firefox ESR 60.7\
2375 **CCK2 Equivalent:** N/A\
2376 **Preferences Affected:** `extensions.update.enabled`
2377
2378 #### Windows (GPO)
2379 ```
2380 Software\Policies\Mozilla\Firefox\ExtensionUpdate = 0x1 | 0x0
2381 ```
2382 #### Windows (Intune)
2383 OMA-URI:
2384 ```
2385 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionUpdate
2386 ```
2387 Value (string):
2388 ```
2389 <enabled/> or <disabled/>
2390 ```
2391 #### macOS
2392 ```
2393 <dict>
2394   <key>ExtensionUpdate</key>
2395   <true/> | <false/>
2396 </dict>
2397 ```
2398 #### policies.json
2399 ```
2400 {
2401   "policies": {
2402     "ExtensionUpdate": true | false
2403   }
2404 }
2405 ```
2406 ### FlashPlugin
2407 Configure the default Flash plugin policy as well as origins for which Flash is allowed.
2408
2409 `Allow` is a list of origins where Flash are allowed.
2410
2411 `Block` is a list of origins where Flash is not allowed.
2412
2413 `Default` determines whether or not Flash is allowed by default.
2414
2415 `Locked` prevents the user from changing Flash preferences.
2416
2417 **Compatibility:** Firefox 60, Firefox ESR 60\
2418 **CCK2 Equivalent:** `permissions.plugin`\
2419 **Preferences Affected:** `plugin.state.flash`
2420
2421 #### Windows (GPO)
2422 ```
2423 Software\Policies\Mozilla\Firefox\FlashPlugin\Allow\1 = "https://example.org"
2424 Software\Policies\Mozilla\Firefox\FlashPlugin\Block\1 = "https://example.edu"
2425 Software\Policies\Mozilla\Firefox\FlashPlugin\Default = 0x1 | 0x0
2426 Software\Policies\Mozilla\Firefox\FlashPlugin\Locked = 0x1 | 0x0
2427 ```
2428 #### Windows (Intune)
2429 OMA-URI:
2430 ```
2431 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Allow
2432 ```
2433 Value (string):
2434 ```
2435 <enabled/>
2436 <data id="Permissions" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>
2437 ```
2438 OMA-URI:
2439 ```
2440 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Locked
2441 ```
2442 Value (string):
2443 ```
2444 <enabled/> or <disabled/>
2445 ```
2446 OMA-URI:
2447 ```
2448 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Default
2449 ```
2450 Value (string):
2451 ```
2452 <enabled/> or <disabled/>
2453 ```
2454 #### macOS
2455 ```
2456 <dict>
2457   <key>FlashPlugin</key>
2458   <dict>
2459     <key>Allow</key>
2460     <array>
2461       <string>http://example.org</string>
2462     </array>
2463     <key>Block</key>
2464     <array>
2465       <string>http://example.edu</string>
2466     </array>
2467     <key>Default</key>
2468     <true/> | <false/>
2469     <key>Locked</key>
2470     <true/> | <false/>
2471   </dict>
2472 </dict>
2473 ```
2474 #### policies.json
2475 ```
2476 {
2477   "policies": {
2478     "FlashPlugin": {
2479       "Allow": ["http://example.org/"],
2480       "Block": ["http://example.edu/"],
2481       "Default": true | false,
2482       "Locked": true | false
2483     }
2484   }
2485 }
2486 ```
2487
2488
2489
2490 ### Handlers
2491 Configure default application handlers. This policy is based on the internal format of `handlers.json`.
2492
2493 You can configure handlers based on a mime type (`mimeTypes`), a file's extension (`extensions`), or a protocol (`schemes`).
2494
2495 Within each handler type, you specify the given mimeType/extension/scheme as a key and use the following subkeys to describe how it is handled.
2496
2497 | Name | Description |
2498 | --- | --- |
2499 | `action`| Can be either `saveToDisk`, `useHelperApp`, `useSystemDefault`.
2500 | `ask` | If `true`, the user is asked if what they want to do with the file. If `false`, the action is taken without user intervention.
2501 | `handlers` | An array of handlers with the first one being the default. If you don't want to have a default handler, use an empty object for the first handler. Choose between path or uriTemplate.
2502 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`name` | The display name of the handler (might not be used).
2503 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`path`| The native path to the executable to be used.
2504 | &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;`uriTemplate`| A url to a web based application handler. The URL must be https and contain a %s to be used for substitution.
2505
2506 **Compatibility:** Firefox 78, Firefox ESR 78\
2507 **CCK2 Equivalent:** N/A\
2508 **Preferences Affected:** N/A
2509
2510 #### Windows (GPO)
2511 ```
2512 Software\Policies\Mozilla\Firefox\Handlers (REG_MULTI_SZ) =
2513 {
2514   "mimeTypes": {
2515     "application/msword": {
2516       "action": "useSystemDefault",
2517       "ask": true | false
2518     }
2519   },
2520   "schemes": {
2521     "mailto": {
2522       "action": "useHelperApp",
2523       "ask": true | false,
2524       "handlers": [{
2525         "name": "Gmail",
2526         "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
2527       }]
2528     }
2529   },
2530   "extensions": {
2531     "pdf": {
2532       "action": "useHelperApp",
2533       "ask": true | false,
2534       "handlers": [{
2535         "name": "Adobe Acrobat",
2536         "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
2537       }]
2538     }
2539   }
2540 }
2541 ```
2542 #### Windows (Intune)
2543 OMA-URI:
2544 ```
2545 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Handlers
2546 ```
2547 Value (string):
2548 ```
2549 <enabled/>
2550 <data id="Handlers" value='
2551 {
2552   "mimeTypes": {
2553     "application/msword": {
2554       "action": "useSystemDefault",
2555       "ask": true | false
2556     }
2557   },
2558   "schemes": {
2559     "mailto": {
2560       "action": "useHelperApp",
2561       "ask": true | false,
2562       "handlers": [{
2563         "name": "Gmail",
2564         "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&amp;url=%s"
2565       }]
2566     }
2567   },
2568   "extensions": {
2569     "pdf": {
2570       "action": "useHelperApp",
2571       "ask": true | false,
2572       "handlers": [{
2573         "name": "Adobe Acrobat",
2574         "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
2575       }]
2576     }
2577   }
2578 }
2579 '/>
2580 ```
2581 #### macOS
2582 ```
2583 <dict>
2584   <key>Handlers</key>
2585   <dict>
2586     <key>mimeTypes</key>
2587     <dict>
2588       <key>application/msword</key>
2589       <dict>
2590         <key>action</key>
2591         <string>useSystemDefault</string>
2592         <key>ask</key>
2593         <true/> | <false/>
2594       </dict>
2595     </dict>
2596     <key>schemes</key>
2597     <dict>
2598       <key>mailto</key>
2599       <dict>
2600         <key>action</key>
2601         <string>useHelperApp</string>
2602         <key>ask</key>
2603         <true/> | <false/>
2604         <key>handlers</key>
2605         <array>
2606           <dict>
2607             <key>name</key>
2608             <string>Gmail</string>
2609             <key>uriTemplate</key>
2610             <string>https://mail.google.com/mail/?extsrc=mailto&url=%s</string>
2611           </dict>
2612         </array>
2613       </dict>
2614     </dict>
2615     <key>extensions</key>
2616     <dict>
2617       <key>pdf</key>
2618       <dict>
2619         <key>action</key>
2620         <string>useHelperApp</string>
2621         <key>ask</key>
2622         <true/> | <false/>
2623         <key>handlers</key>
2624         <array>
2625           <dict>
2626             <key>name</key>
2627             <string>Adobe Acrobat</string>
2628             <key>path</key>
2629             <string>/System/Applications/Preview.app</string>
2630           </dict>
2631         </array>
2632       </dict>
2633     </dict>
2634   </dict>
2635 </dict>
2636 ```
2637 #### policies.json
2638 ```
2639 {
2640   "policies": {
2641     "Handlers": {
2642       "mimeTypes": {
2643         "application/msword": {
2644           "action": "useSystemDefault",
2645           "ask": false
2646         }
2647       },
2648       "schemes": {
2649         "mailto": {
2650           "action": "useHelperApp",
2651           "ask": true | false,
2652           "handlers": [{
2653             "name": "Gmail",
2654             "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
2655           }]
2656         }
2657       },
2658       "extensions": {
2659         "pdf": {
2660           "action": "useHelperApp",
2661           "ask": true | false,
2662           "handlers": [{
2663             "name": "Adobe Acrobat",
2664             "path": "/usr/bin/acroread"
2665           }]
2666         }
2667       }
2668     }
2669   }
2670 }
2671 ```
2672 ### FirefoxHome
2673 Customize the Firefox Home page.
2674
2675 **Compatibility:** Firefox 68, Firefox ESR 68\
2676 **CCK2 Equivalent:** N/A\
2677 **Preferences Affected:** `browser.newtabpage.activity-stream.showSearch`,`browser.newtabpage.activity-stream.feeds.topsites`,`browser.newtabpage.activity-stream.feeds.section.highlights`,`browser.newtabpage.activity-stream.feeds.section.topstories`,`browser.newtabpage.activity-stream.feeds.snippets`
2678
2679 #### Windows (GPO)
2680 ```
2681 Software\Policies\Mozilla\Firefox\FirefoxHome\Search = 0x1 | 0x0
2682 Software\Policies\Mozilla\Firefox\FirefoxHome\TopSites = 0x1 | 0x0
2683 Software\Policies\Mozilla\Firefox\FirefoxHome\Highlights = 0x1 | 0x0
2684 Software\Policies\Mozilla\Firefox\FirefoxHome\Pocket = 0x1 | 0x0
2685 Software\Policies\Mozilla\Firefox\FirefoxHome\Snippets = 0x1 | 0x0
2686 Software\Policies\Mozilla\Firefox\FirefoxHome\Locked = 0x1 | 0x0
2687 ```
2688 #### Windows (Intune)
2689 OMA-URI:
2690 ```
2691 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CustomizeFirefoxHome
2692 ```
2693 Value (string):
2694 ```
2695 <enabled/>
2696 <data id="FirefoxHome_Search"  value="true | false"/>
2697 <data id="FirefoxHome_TopSites"  value="true | false"/>
2698 <data id="FirefoxHome_Highlights"  value="true | false"/>
2699 <data id="FirefoxHome_Pocket"  value="true | false"/>
2700 <data id="FirefoxHome_Snippets"  value="true | false"/>
2701 <data id="FirefoxHome_Locked"  value="true | false"/>
2702 ```
2703 #### macOS
2704 ```
2705 <dict>
2706   <key>FirefoxHome</key>
2707   <dict>
2708     <key>Search</key>
2709     <true/> | <false/>
2710     <key>TopSites</key>
2711     <true/> | <false/>
2712     <key>Highlights</key>
2713     <true/> | <false/>
2714     <key>Pocket</key>
2715     <true/> | <false/>
2716     <key>Snippets</key>
2717     <true/> | <false/>
2718     <key>Locked</key>
2719     <true/> | <false/>
2720   </dict>
2721 </dict>
2722 ```
2723 #### policies.json
2724 ```
2725 {
2726   "policies": {
2727     "FirefoxHome": {
2728       "Search": true | false,
2729       "TopSites": true | false,
2730       "Highlights": true | false,
2731       "Pocket": true | false,
2732       "Snippets": true | false,
2733       "Locked": true | false
2734     }
2735   }
2736 }
2737 ```
2738 ### HardwareAcceleration
2739 Control hardware acceleration.
2740
2741 **Compatibility:** Firefox 60, Firefox ESR 60\
2742 **CCK2 Equivalent:** N/A\
2743 **Preferences Affected:** `layers.acceleration.disabled`
2744
2745 #### Windows (GPO)
2746 ```
2747 Software\Policies\Mozilla\Firefox\HardwareAcceleration = 0x1 | 0x0
2748 ```
2749 #### Windows (Intune)
2750 OMA-URI:
2751 ```
2752 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HardwareAcceleration
2753 ```
2754 Value (string):
2755 ```
2756 <enabled/> or <disabled/>
2757 ```
2758 #### macOS
2759 ```
2760 <dict>
2761   <key>HardwareAcceleration</key>
2762   <true/> | <false/>
2763 </dict>
2764 ```
2765 #### policies.json
2766 ```
2767 {
2768   "policies": {
2769     "HardwareAcceleration": true | false
2770   }
2771 }
2772 ```
2773 ### Homepage
2774 Configure the default homepage and how Firefox starts.
2775
2776 `URL` is the default homepage.
2777
2778 `Locked` prevents the user from changing homepage preferences.
2779
2780 `Additional` allows for more than one homepage.
2781
2782 `StartPage` is how Firefox starts. The choices are no homepage, the default homepage or the previous session.
2783
2784 With Firefox 78, an additional option as added for `Startpage`, `homepage-locked`. This allows for locking the homepage, but still allowing the user to choose whether or not they want to restore their session.
2785
2786 **Compatibility:** Firefox 60, Firefox ESR 60 (StartPage was added in Firefox 60, Firefox ESR 60.4, homepage-locked added in Firefox 78)\
2787 **CCK2 Equivalent:** `homePage`,`lockHomePage`\
2788 **Preferences Affected:** `browser.startup.homepage`,`browser.startup.page`
2789
2790 #### Windows (GPO)
2791 ```
2792 Software\Policies\Mozilla\Firefox\Homepage\URL = "https://example.com"
2793 Software\Policies\Mozilla\Firefox\Homepage\Locked = 0x1 | 0x0
2794 Software\Policies\Mozilla\Firefox\Homepage\Additional\1 = "https://example.org"
2795 Software\Policies\Mozilla\Firefox\Homepage\Additional\2 = "https://example.edu"
2796 Software\Policies\Mozilla\Firefox\Homepage\StartPage = "none" | "homepage" | "previous-session" | "homepage-locked"
2797 ```
2798 #### Windows (Intune)
2799 OMA-URI:
2800 ```
2801 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageURL
2802 ```
2803 Value (string):
2804 ```
2805 <enabled/>
2806
2807 <data id="HomepageURL" value="https://example.com"/>
2808 <data id="HomepageLocked" value="true | false"/>
2809 ```
2810 OMA-URI:
2811 ```
2812 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageAdditional
2813 ```
2814 Value (string):
2815 ```
2816 <enabled/>
2817
2818 <data id="HomepageAdditional" value="1&#xF000;http://example.org&#xF000;2&#xF000;http://example.edu"/>
2819 ```
2820 OMA-URI:
2821 ```
2822 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageStartPage
2823 ```
2824 Value (string):
2825 ```
2826 <enabled/>
2827
2828 <data id="StartPage" value="none | homepage | previous-session"/>
2829 ```
2830 #### macOS
2831 ```
2832 <dict>
2833   <key>Homepage</key>
2834   <dict>
2835     <key>URL</key>
2836     <string>http://example.com</string>
2837     <key>Locked</key>
2838     <true/> | <false/>
2839     <key>Additional</key>
2840     <array>
2841       <string>http://example.org</string>
2842       <string>http://example.edu</string>
2843     </array>
2844     <key>StartPage</key>
2845     <string>none | homepage | previous-session | homepage-locked</string>
2846   </dict>
2847 </dict>
2848 ```
2849 #### policies.json
2850 ```
2851 {
2852   "policies": {
2853     "Homepage": {
2854       "URL": "http://example.com/",
2855       "Locked": true | false,
2856       "Additional": ["http://example.org/",
2857                      "http://example.edu/"],
2858       "StartPage": "none" | "homepage" | "previous-session" | "homepage-locked"
2859     }
2860   }
2861 }
2862 ```
2863 ### InstallAddonsPermission
2864 Configure the default extension install policy as well as origins for extension installs are allowed. This policy does not override turning off all extension installs.
2865
2866 `Allow` is a list of origins where extension installs are allowed.
2867
2868 `Default` determines whether or not extension installs are allowed by default.
2869
2870 **Compatibility:** Firefox 60, Firefox ESR 60\
2871 **CCK2 Equivalent:** `permissions.install`\
2872 **Preferences Affected:** `xpinstall.enabled`
2873
2874 #### Windows (GPO)
2875 ```
2876 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\1 = "https://example.org"
2877 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\2 = "https://example.edu"
2878 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Default = 0x1 | 0x0
2879 ```
2880 #### Windows (Intune)
2881 OMA-URI:
2882 ```
2883 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Allow
2884 ```
2885 Value (string):
2886 ```
2887 <enabled/>
2888 <data id="Permissions" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>
2889 ```
2890 OMA-URI:
2891 ```
2892 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Default
2893 ```
2894 Value (string):
2895 ```
2896 <enabled/>
2897 ```
2898 #### macOS
2899 ```
2900 <dict>
2901   <key>InstallAddonsPermission</key>
2902   <dict>
2903     <key>Allow</key>
2904     <array>
2905       <string>http://example.org</string>
2906       <string>http://example.edu</string>
2907     </array>
2908     <key>Default</key>
2909     <true/> | <false/>
2910   </dict>
2911 </dict>
2912 ```
2913 #### policies.json
2914 ```
2915 {
2916   "policies": {
2917     "InstallAddonsPermission": {
2918       "Allow": ["http://example.org/",
2919                 "http://example.edu/"],
2920       "Default": true | false
2921     }
2922   }
2923 }
2924 ```
2925 ### LegacyProfiles
2926 Disable the feature enforcing a separate profile for each installation.
2927
2928 If this policy set to true, Firefox will not try to create different profiles for installations of Firefox in different directories. This is the equivalent of the MOZ_LEGACY_PROFILES environment variable.
2929
2930 If this policy set to false, Firefox will create a new profile for each unique installation of Firefox.
2931
2932 This policy only work on Windows via GPO (not policies.json).
2933
2934 **Compatibility:** Firefox 70, Firefox ESR 68.2 (Windows only, GPO only)\
2935 **CCK2 Equivalent:** N/A\
2936 **Preferences Affected:** N/A
2937
2938 #### Windows (GPO)
2939 ```
2940 Software\Policies\Mozilla\Firefox\LegacyProfiles = = 0x1 | 0x0
2941 ```
2942 #### Windows (Intune)
2943 OMA-URI:
2944 ```
2945 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacyProfiles
2946 ```
2947 Value (string):
2948 ```
2949 <enabled/> or <disabled/>
2950 ```
2951 ### LocalFileLinks
2952 Enable linking to local files by origin.
2953
2954 **Compatibility:** Firefox 68, Firefox ESR 68\
2955 **CCK2 Equivalent:** N/A\
2956 **Preferences Affected:** `capability.policy.localfilelinks.*`
2957
2958 #### Windows (GPO)
2959 ```
2960 Software\Policies\Mozilla\Firefox\LocalFileLinks\1 = "https://example.org"
2961 Software\Policies\Mozilla\Firefox\LocalFileLinks\2 = "https://example.edu"
2962 ```
2963 #### Windows (Intune)
2964 OMA-URI:
2965 ```
2966 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LocalFileLinks
2967 ```
2968 Value (string):
2969 ```
2970 <enabled/>
2971 <data id="LocalFileLinks" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>
2972 ```
2973 #### macOS
2974 ```
2975 <dict>
2976   <key>LocalFileLinks</key>
2977   <array>
2978     <string>http://example.org</string>
2979     <string>http://example.edu</string>
2980   </array>
2981 </dict>
2982 ```
2983 #### policies.json
2984 ```
2985 {
2986   "policies": {
2987     "LocalFileLinks": ["http://example.org/",
2988                        "http://example.edu/"]
2989   }
2990 }
2991 ```
2992 ### PrimaryPassword
2993 Require or prevent using a primary (formerly master) password.
2994
2995 If this value is true, a primary password is required. If this value is false, it works the same as if [`DisableMasterPasswordCreation`](#disablemasterpasswordcreation) was true and removes the primary password functionality.
2996
2997 If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.
2998
2999 **Compatibility:** Firefox 79, Firefox ESR 78.1\
3000 **CCK2 Equivalent:** `noMasterPassword`\
3001 **Preferences Affected:** N/A
3002
3003 #### Windows (GPO)
3004 ```
3005 Software\Policies\Mozilla\Firefox\PrimaryPassword = 0x1 | 0x0
3006 ```
3007 #### Windows (Intune)
3008 OMA-URI:
3009 ```
3010 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PrimaryPassword
3011 ```
3012 Value (string):
3013 ```
3014 <enabled/> or <disabled/>
3015 ```
3016 #### macOS
3017 ```
3018 <dict>
3019   <key>PrimaryPassword</key>
3020   <true/> | <false/>
3021 </dict>
3022 ```
3023 #### policies.json
3024 ```
3025 {
3026   "policies": {
3027     "PrimaryPassword": true | false
3028   }
3029 }
3030 ```
3031 ### NetworkPrediction
3032 Enable or disable network prediction (DNS prefetching).
3033
3034 **Compatibility:** Firefox 67, Firefox ESR 60.7\
3035 **CCK2 Equivalent:** N/A\
3036 **Preferences Affected:** `network.dns.disablePrefetch`,`network.dns.disablePrefetchFromHTTPS`
3037
3038 #### Windows (GPO)
3039 ```
3040 Software\Policies\Mozilla\Firefox\NetworkPrediction = 0x1 | 0x0
3041 ```
3042 #### Windows (Intune)
3043 OMA-URI:
3044 ```
3045 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NetworkPrediction
3046 ```
3047 Value (string):
3048 ```
3049 <enabled/> or <disabled/>
3050 ```
3051 #### macOS
3052 ```
3053 <dict>
3054   <key>NetworkPrediction</key>
3055   <true/> | <false/>
3056 </dict>
3057 ```
3058 #### policies.json
3059 ```
3060 {
3061   "policies": {
3062     "NetworkPrediction": true | false
3063 }
3064 ```
3065 ### NewTabPage
3066 Enable or disable the New Tab page.
3067
3068 **Compatibility:** Firefox 68, Firefox ESR 68\
3069 **CCK2 Equivalent:** N/A\
3070 **Preferences Affected:** `browser.newtabpage.enabled`
3071
3072 #### Windows (GPO)
3073 ```
3074 Software\Policies\Mozilla\Firefox\NewTabPage = 0x1 | 0x0
3075 ```
3076 #### Windows (Intune)
3077 OMA-URI:
3078 ```
3079 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NewTabPage
3080 ```
3081 Value (string):
3082 ```
3083 <enabled/> or <disabled/>
3084 ```
3085 #### macOS
3086 ```
3087 <dict>
3088   <key>NewTabPage</key>
3089   <true/> | <false/>
3090 </dict>
3091 ```
3092 #### policies.json
3093 ```
3094 {
3095   "policies": {
3096     "NewTabPage": true | false
3097 }
3098 ```
3099 ### NoDefaultBookmarks
3100 Disable the creation of default bookmarks.
3101
3102 This policy is only effective if the user profile has not been created yet.
3103
3104 **Compatibility:** Firefox 60, Firefox ESR 60\
3105 **CCK2 Equivalent:** `removeDefaultBookmarks`\
3106 **Preferences Affected:** N/A
3107
3108 #### Windows (GPO)
3109 ```
3110 Software\Policies\Mozilla\Firefox\NoDefaultBookmarks = 0x1 | 0x0
3111 ```
3112 #### Windows (Intune)
3113 OMA-URI:
3114 ```
3115 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NoDefaultBookmarks
3116 ```
3117 Value (string):
3118 ```
3119 <enabled/> or <disabled/>
3120 ```
3121 #### macOS
3122 ```
3123 <dict>
3124   <key>NoDefaultBookmarks</key>
3125   <true/> | <false/>
3126 </dict>
3127 ```
3128 #### policies.json
3129 ```
3130 {
3131   "policies": {
3132     "NoDefaultBookmarks": true | false
3133   }
3134 }
3135 ```
3136 ### OfferToSaveLogins
3137 Control whether or not Firefox offers to save passwords.
3138
3139 **Compatibility:** Firefox 60, Firefox ESR 60\
3140 **CCK2 Equivalent:** `dontRememberPasswords`\
3141 **Preferences Affected:** `signon.rememberSignons`
3142
3143 #### Windows (GPO)
3144 ```
3145 Software\Policies\Mozilla\Firefox\OfferToSaveLogins = 0x1 | 0x0
3146 ```
3147 #### Windows (Intune)
3148 OMA-URI:
3149 ```
3150 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLogins
3151 ```
3152 Value (string):
3153 ```
3154 <enabled/> or <disabled/>
3155 ```
3156 #### macOS
3157 ```
3158 <dict>
3159   <key>OfferToSaveLogins</key>
3160   <true/> | <false/>
3161 </dict>
3162 ```
3163 #### policies.json
3164 ```
3165 {
3166   "policies": {
3167     "OfferToSaveLogins": true | false
3168   }
3169 }
3170 ```
3171 ### OfferToSaveLoginsDefault
3172 Sets the default value of signon.rememberSignons without locking it.
3173
3174 **Compatibility:** Firefox 70, Firefox ESR 60.2\
3175 **CCK2 Equivalent:** `dontRememberPasswords`\
3176 **Preferences Affected:** `signon.rememberSignons`
3177
3178 #### Windows (GPO)
3179 ```
3180 Software\Policies\Mozilla\Firefox\OfferToSaveLoginsDefault = 0x1 | 0x0
3181 ```
3182 #### Windows (Intune)
3183 OMA-URI:
3184 ```
3185 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLoginsDefault
3186 ```
3187 Value (string):
3188 ```
3189 <enabled/> or <disabled/>
3190 ```
3191 #### macOS
3192 ```
3193 <dict>
3194   <key>OfferToSaveLoginsDefault</key>
3195   <true/> | <false/>
3196 </dict>
3197 ```
3198 #### policies.json
3199 ```
3200 {
3201   "policies": {
3202     "OfferToSaveLoginsDefault": true | false
3203   }
3204 }
3205 ```
3206 ### OverrideFirstRunPage
3207 Override the first run page. If the value is blank, no first run page is displayed.
3208
3209 **Compatibility:** Firefox 60, Firefox ESR 60\
3210 **CCK2 Equivalent:** `welcomePage`,`noWelcomePage`\
3211 **Preferences Affected:** `startup.homepage_welcome_url`
3212
3213 #### Windows (GPO)
3214 ```
3215 Software\Policies\Mozilla\Firefox\OverrideFirstRunPage = "http://example.org"
3216 ```
3217 #### Windows (Intune)
3218 OMA-URI:
3219 ```
3220 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverrideFirstRunPage
3221 ```
3222 Value (string):
3223 ```
3224 <enabled/>
3225 <data id="OverridePage" value="https://example.com"/>
3226 ```
3227 #### macOS
3228 ```
3229 <dict>
3230   <key>OverrideFirstRunPage</key>
3231   <string>http://example.org</string>
3232 </dict>
3233 ```
3234 #### policies.json
3235 ```
3236 {
3237   "policies": {
3238     "OverrideFirstRunPage": "http://example.org"
3239 }
3240 ```
3241 ### OverridePostUpdatePage
3242 Override the upgrade page. If the value is blank, no upgrade page is displayed.
3243
3244 **Compatibility:** Firefox 60, Firefox ESR 60\
3245 **CCK2 Equivalent:** `upgradePage`,`noUpgradePage`\
3246 **Preferences Affected:** `startup.homepage_override_url`
3247
3248 #### Windows (GPO)
3249 ```
3250 Software\Policies\Mozilla\Firefox\OverridePostUpdatePage = "http://example.org"
3251 ```
3252 #### Windows (Intune)
3253 OMA-URI:
3254 ```
3255 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverridePostUpdatePage
3256 ```
3257 Value (string):
3258 ```
3259 <enabled/>
3260 <data id="OverridePage" value="https://example.com"/>
3261 ```
3262 #### macOS
3263 ```
3264 <dict>
3265   <key>OverridePostUpdatePage</key>
3266   <string>http://example.org</string>
3267 </dict>
3268 ```
3269 #### policies.json
3270 ```
3271 {
3272   "policies": {
3273     "OverridePostUpdatePage": "http://example.org"
3274 }
3275 ```
3276 ### PasswordManagerEnabled
3277 Remove access to the password manager via preferences and blocks about:logins on Firefox 70.
3278
3279 **Compatibility:** Firefox 70, Firefox ESR 60.2\
3280 **CCK2 Equivalent:** N/A\
3281 **Preferences Affected:** `pref.privacy.disable_button.view_passwords`
3282
3283 #### Windows (GPO)
3284 ```
3285 Software\Policies\Mozilla\Firefox\PasswordManagerEnabled = 0x1 | 0x0
3286 ```
3287 #### Windows (Intune)
3288 OMA-URI:
3289 ```
3290 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerEnabled
3291 ```
3292 Value (string):
3293 ```
3294 <enabled/> or <disabled/>
3295 ```
3296 #### macOS
3297 ```
3298 <dict>
3299   <key>PasswordManagerEnabled</key>
3300   <true/> | <false/>
3301 </dict>
3302 ```
3303 #### policies.json
3304 ```
3305 {
3306   "policies": {
3307     "PasswordManagerEnabled": true | false
3308   }
3309 }
3310 ```
3311 ### PDFjs
3312 Disable or configure PDF.js, the built-in PDF viewer.
3313
3314 If `Enabled` is set to false, the built-in PDF viewer is disabled.
3315
3316 If `EnablePermissions` is set to true, the built-in PDF viewer will honor document permissions like preventing the copying of text.
3317
3318 Note: DisableBuiltinPDFViewer has not been deprecated. You can either continue to use it, or switch to using PDFjs->Enabled to disable the built-in PDF viewer. This new permission was added because we needed a place for PDFjs->EnabledPermissions.
3319
3320 **Compatibility:** Firefox 77, Firefox ESR 68.9\
3321 **CCK2 Equivalent:** N/A\
3322 **Preferences Affected:** `pdfjs.diabled`,`pdfjs.enablePermissions`
3323
3324 #### Windows (GPO)
3325 ```
3326 Software\Policies\Mozilla\Firefox\PDFjs\Enabled = 0x1 | 0x0
3327 Software\Policies\Mozilla\Firefox\PDFjs\EnablePermissions = 0x1 | 0x0
3328 ```
3329 #### Windows (Intune)
3330 OMA-URI:
3331 ```
3332 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_Enabled
3333 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_EnablePermissions
3334 ```
3335 Value (string):
3336 ```
3337 <enabled/>or <disabled/>
3338 ```
3339 #### macOS
3340 ```
3341 <dict>
3342   <key>PDFjs</key>
3343   <dict>
3344     <key>Enabled</key>
3345     <true/> | <false/>
3346     <key>EnablePermissions</key>
3347     <true/> | <false/>
3348   </dict>
3349 </dict>
3350 ```
3351 #### policies.json
3352 ```
3353 {
3354   "policies": {
3355     "PSFjs": {
3356       "Enabled": true | false,
3357       "EnablePermissions": true | false
3358     }
3359 }
3360 ```
3361 ### Permissions
3362 Set permissions associated with camera, microphone, location, notifications, autoplay, and virtual reality. Because these are origins, not domains, entries with unique ports must be specified separately. This explicitly means that it is not possible to add wildcards. See examples below.
3363
3364 `Allow` is a list of origins where the feature is allowed.
3365
3366 `Block` is a list of origins where the feature is not allowed.
3367
3368 `BlockNewRequests` determines whether or not new requests can be made for the feature.
3369
3370 `Locked` prevents the user from changing preferences for the feature.
3371
3372 `Default` specifies the default value for Autoplay. block-audio-video is not supported on Firefox ESR 68.
3373
3374 **Compatibility:** Firefox 62, Firefox ESR 60.2 (Autoplay added in Firefox 74, Firefox ESR 68.6, Autoplay Default/Locked added in Firefox 76, Firefox ESR 68.8, VirtualReality added in Firefox 80, Firefox ESR 78.2)\
3375 **CCK2 Equivalent:** N/A\
3376 **Preferences Affected:** `permissions.default.camera`,`permissions.default.microphone`,`permissions.default.geo`,`permissions.default.desktop-notification`,`media.autoplay.default`.`permissions.default.xr`
3377
3378 #### Windows (GPO)
3379 ```
3380 Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\1 = "https://example.org"
3381 Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\2 = "https://example.org:1234"
3382 Software\Policies\Mozilla\Firefox\Permissions\Camera\Block\1 = "https://example.edu"
3383 Software\Policies\Mozilla\Firefox\Permissions\Camera\BlockNewRequests = 0x1 | 0x0
3384 Software\Policies\Mozilla\Firefox\Permissions\Camera\Locked = 0x1 | 0x0
3385 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Allow\1 = "https://example.org"
3386 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Block\1 = "https://example.edu"
3387 Software\Policies\Mozilla\Firefox\Permissions\Microphone\BlockNewRequests = 0x1 | 0x0
3388 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Locked = 0x1 | 0x0
3389 Software\Policies\Mozilla\Firefox\Permissions\Location\Allow\1 = "https://example.org"
3390 Software\Policies\Mozilla\Firefox\Permissions\Location\Block\1 = "https://example.edu"
3391 Software\Policies\Mozilla\Firefox\Permissions\Location\BlockNewRequests = 0x1 | 0x0
3392 Software\Policies\Mozilla\Firefox\Permissions\Location\Locked = 0x1 | 0x0
3393 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Allow\1 = "https://example.org"
3394 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Block\1 = "https://example.edu"
3395 Software\Policies\Mozilla\Firefox\Permissions\Notifications\BlockNewRequests = 0x1 | 0x0
3396 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Locked = 0x1 | 0x0
3397 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Allow\1 = "https://example.org"
3398 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Block\1 = "https://example.edu"
3399 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Default = "allow-audio-video" | "block-audio" | "block-audio-video"
3400 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Locked = 0x1 | 0x0
3401 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Allow\1 = "https://example.org"
3402 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Block\1 = "https://example.edu"
3403 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\BlockNewRequests = 0x1 | 0x0
3404 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Locked = 0x1 | 0x0
3405 ```
3406 #### Windows (Intune)
3407 OMA-URI:
3408 ```
3409 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_BlockNewRequests
3410 ```
3411 Value (string):
3412 ```
3413 <enabled/> or <disabled/>
3414 ```
3415 OMA-URI:
3416 ```
3417 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_Locked
3418 ```
3419 Value (string):
3420 ```
3421 <enabled/> or <disabled/>
3422 ```
3423 OMA-URI:
3424 ```
3425 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Allow
3426 ```
3427 Value (string):
3428 ```
3429 <enabled/>
3430 <data id="Permissions" value="1&#xF000;https://example.org"/>
3431 ```
3432 OMA-URI:
3433 ```
3434 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_BlockNewRequests
3435 ```
3436 Value (string):
3437 ```
3438 <enabled/> or <disabled/>
3439 ```
3440 OMA-URI:
3441 ```
3442 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Locked
3443 ```
3444 Value (string):
3445 ```
3446 <enabled/> or <disabled/>
3447 ```
3448 OMA-URI:
3449 ```
3450 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Allow
3451 ```
3452 Value (string):
3453 ```
3454 <enabled/>
3455 <data id="Permissions" value="1&#xF000;https://example.org"/>
3456 ```
3457 OMA-URI:
3458 ```
3459 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Block
3460 ```
3461 Value (string):
3462 ```
3463 <enabled/>
3464 <data id="Permissions" value="1&#xF000;https://example.edu"/>
3465 ```
3466 OMA-URI:
3467 ```
3468 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Default
3469 ```
3470 Value (string):
3471 ```
3472 <enabled/>
3473 <data id="Autoplay_Default" value="allow-audio-video | block-audio | block-audio-video"/>
3474 ```
3475 OMA-URI:
3476 ```
3477 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Locked
3478 ```
3479 Value (string):
3480 ```
3481 <enabled/> or <disabled/>
3482 ```
3483 OMA-URI:
3484 ```
3485 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Allow
3486 ```
3487 Value (string):
3488 ```
3489 <enabled/>
3490 <data id="Permissions" value="1&#xF000;https://example.org"/>
3491 ```
3492 OMA-URI:
3493 ```
3494 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Block
3495 ```
3496 Value (string):
3497 ```
3498 <enabled/>
3499 <data id="Permissions" value="1&#xF000;https://example.edu"/>
3500 ```
3501 OMA-URI:
3502 ```
3503 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_BlockNewRequests
3504 ```
3505 Value (string):
3506 ```
3507 <enabled/> or <disabled/>
3508 ```
3509 OMA-URI:
3510 ```
3511 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Locked
3512 ```
3513 Value (string):
3514 ```
3515 <enabled/> or <disabled/>
3516 ```
3517 #### macOS
3518 ```
3519 <dict>
3520   <key>Permissions</key>
3521   <dict>
3522     <key>Camera</key>
3523     <dict>
3524       <key>Allow</key>
3525       <array>
3526         <string>https://example.org</string>
3527         <string>https://example.org:1234</string>
3528       </array>
3529       <key>Block</key>
3530       <array>
3531         <string>https://example.edu</string>
3532       </array>
3533       <key>BlockNewRequests</key>
3534       <true/> | <false/>
3535       <key>Locked</key>
3536       <true/> | <false/>
3537     </dict>
3538     <key>Microphone</key>
3539     <dict>
3540       <key>Allow</key>
3541       <array>
3542         <string>https://example.org</string>
3543       </array>
3544       <key>Block</key>
3545       <array>
3546         <string>https://example.edu</string>
3547       </array>
3548       <key>BlockNewRequests</key>
3549       <true/> | <false/>
3550       <key>Locked</key>
3551       <true/> | <false/>
3552     </dict>
3553     <key>Location</key>
3554     <dict>
3555       <key>Allow</key>
3556       <array>
3557         <string>https://example.org</string>
3558       </array>
3559       <key>Block</key>
3560       <array>
3561         <string>https://example.edu</string>
3562       </array>
3563       <key>BlockNewRequests</key>
3564       <true/> | <false/>
3565       <key>Locked</key>
3566       <true/> | <false/>
3567     </dict>
3568     <key>Notifications</key>
3569     <dict>
3570       <key>Allow</key>
3571       <array>
3572         <string>https://example.org</string>
3573       </array>
3574       <key>Block</key>
3575       <array>
3576         <string>https://example.edu</string>
3577       </array>
3578       <key>BlockNewRequests</key>
3579       <true/>
3580       <key>Locked</key>
3581       <true/>
3582     </dict>
3583     <key>Autoplay</key>
3584     <dict>
3585       <key>Allow</key>
3586       <array>
3587         <string>https://example.org</string>
3588       </array>
3589       <key>Block</key>
3590       <array>
3591         <string>https://example.edu</string>
3592       </array>
3593       <key>Default</key>
3594       <string>allow-audio-video | block-audio | block-audio-video</string>
3595       <key>Locked</key>
3596       <true/> | <false/>
3597     </dict>
3598   </dict>
3599 </dict>
3600 ```
3601 #### policies.json
3602 ```
3603 {
3604   "policies": {
3605     "Permissions": {
3606       "Camera": {
3607         "Allow": ["https://example.org","https://example.org:1234"],
3608         "Block": ["https://example.edu"],
3609         "BlockNewRequests": true | false,
3610         "Locked": true | false
3611       },
3612       "Microphone": {
3613         "Allow": ["https://example.org"],
3614         "Block": ["https://example.edu"],
3615         "BlockNewRequests": true | false,
3616         "Locked": true | false
3617       },
3618       "Location": {
3619         "Allow": ["https://example.org"],
3620         "Block": ["https://example.edu"],
3621         "BlockNewRequests": true | false,
3622         "Locked": true | false
3623       },
3624       "Notifications": {
3625         "Allow": ["https://example.org"],
3626         "Block": ["https://example.edu"],
3627         "BlockNewRequests": true | false,
3628         "Locked": true | false
3629       },
3630       "Autoplay": {
3631         "Allow": ["https://example.org"],
3632         "Block": ["https://example.edu"],
3633         "Default": "allow-audio-video" | "block-audio" | "block-audio-video",
3634         "Locked": true | false
3635       }
3636     }
3637   }
3638 }
3639 ```
3640 ### PictureInPicture
3641
3642 Enable or disable Picture-in-Picture.
3643
3644 **Compatibility:** Firefox 78, Firefox ESR 78\
3645 **CCK2 Equivalent:** N/A\
3646 **Preferences Affected:** `media.videocontrols.picture-in-picture.video-toggle.enabled`
3647
3648 #### Windows (GPO)
3649 ```
3650 Software\Policies\Mozilla\Firefox\PictureInPicture = 0x1 | 0x0
3651 ```
3652 #### Windows (Intune)
3653 OMA-URI:
3654 ```
3655 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PictureInPicture
3656 ```
3657 Value (string):
3658 ```
3659 <enabled/> or <disabled/>
3660 ```
3661 #### macOS
3662 ```
3663 <dict>
3664   <key>PictureInPicture</key>
3665   <true/> | <false/>
3666 </dict>
3667 ```
3668 #### policies.json
3669 ```
3670 {
3671   "policies": {
3672     "PictureInPicture": true | false
3673   }
3674 }
3675 ```
3676 ### PopupBlocking
3677 Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
3678
3679 `Allow` is a list of origins where popup-windows are allowed.
3680
3681 `Default` determines whether or not pop-up windows are allowed by default.
3682
3683 `Locked` prevents the user from changing pop-up preferences.
3684
3685 **Compatibility:** Firefox 60, Firefox ESR 60\
3686 **CCK2 Equivalent:** `permissions.popup`\
3687 **Preferences Affected:** `dom.disable_open_during_load`
3688
3689 #### Windows (GPO)
3690 ```
3691 Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\1 = "https://example.org"
3692 Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\2 = "https://example.edu"
3693 Software\Policies\Mozilla\Firefox\PopupBlocking\Default = 0x1 | 0x0
3694 Software\Policies\Mozilla\Firefox\PopupBlocking\Locked = 0x1 | 0x0
3695 ```
3696 #### Windows (Intune)
3697 OMA-URI:
3698 ```
3699 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Allow
3700 ```
3701 Value (string):
3702 ```
3703 <enabled/>
3704 <data id="Permissions" value="1&#xF000;https://example.org&#xF000;2&#xF000;https://example.edu"/>
3705 ```
3706 OMA-URI:
3707 ```
3708 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Default
3709 ```
3710 Value (string):
3711 ```
3712 <enabled/> or <disabled/>
3713 ```
3714 OMA-URI:
3715 ```
3716 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Locked
3717 ```
3718 Value (string):
3719 ```
3720 <enabled/> or <disabled/>
3721 ```
3722 #### macOS
3723 ```
3724 <dict>
3725   <key>PopupBlocking</key>
3726   <dict>
3727     <key>Allow</key>
3728     <array>
3729       <string>http://example.org</string>
3730       <string>http://example.edu</string>
3731     </array>
3732     <key>Default</key>
3733     <true/> | <false/>
3734     <key>Locked</key>
3735     <true/> | <false/>
3736   </dict>
3737 </dict>
3738 ```
3739 #### policies.json
3740 ```
3741 {
3742   "policies": {
3743     "PopupBlocking": {
3744       "Allow": ["http://example.org/",
3745                 "http://example.edu/"],
3746       "Default": true | false,
3747       "Locked": true | false
3748     }
3749   }
3750 }
3751 ```
3752 ### Preferences
3753 Set and lock preferences.
3754
3755 Previously you could only set and lock a subset of preferences. Starting with Firefox 81 and Firefox ESR 78.3 you can set many more preferences. You can also set default preferences, user preferences and you can clear preferences.
3756
3757 Preferences that start with the following prefixes are supported:
3758 ```
3759 accessibility.
3760 browser.
3761 datareporting.policy.
3762 dom.
3763 extensions.
3764 geo.
3765 intl.
3766 layout.
3767 media.
3768 network.
3769 places.
3770 print.
3771 ui.
3772 widget.
3773 ```
3774 as well as the following security preferences:
3775 ```
3776 security.default_personal_cert
3777 security.insecure_connection_text.enabled
3778 security.insecure_connection_text.pbmode.enabled
3779 security.insecure_field_warning.contextual.enabled
3780 security.mixed_content.block_active_content
3781 security.osclientcerts.autoload
3782 security.ssl.errorReporting.enabled
3783 security.tls.hello_downgrade_check
3784 security.warn_submit_secure_to_insecure
3785 ```
3786 Using the preference as the key, set the `Value` to the corresponding preference value.
3787
3788 `Status` can be "default", "locked", "user" or "clear"
3789
3790 Default preferences can be modified by the user.
3791
3792 If a value is locked, it is also set as the default.
3793
3794 User preferences persist across invocations of Firefox. It is the equivalent of a user setting the preference. They are most useful when a preference is needed very early in startup so it can't be set as default by policy.
3795
3796 User preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.
3797
3798 See the examples below for more detail.
3799
3800 IMPORTANT: Make sure you're only setting a particular preference using this mechanism and not some other way.
3801
3802 Status
3803 **Compatibility:** Firefox 81, Firefox ESR 78.3\
3804 **CCK2 Equivalent:** `preferences`\
3805 **Preferences Affected:** Many
3806
3807 #### Windows (GPO)
3808 ```
3809 Software\Policies\Mozilla\Firefox\Preferences (REG_MULTI_SZ) =
3810 {
3811   "accessibility.force_disabled": {
3812     "Value": 1,
3813     "Status": "default"
3814   },
3815   "browser.cache.disk.parent_directory": {
3816     "Value": "SOME_NATIVE_PATH",
3817     "Status": "user"
3818   },
3819   "browser.tabs.warnOnClose": {
3820     "Value": false,
3821     "Status": "locked"
3822   }
3823 }
3824 ```
3825 #### Windows (Intune)
3826 OMA-URI:
3827 ```
3828 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Preferences
3829 ```
3830 Value (string):
3831 ```
3832 <enabled/>
3833 <data id="Preferences" value='
3834 {
3835   "accessibility.force_disabled": {
3836     "Value": 1,
3837     "Status": "default"
3838   },
3839   "browser.cache.disk.parent_directory": {
3840     "Value": "SOME_NATIVE_PATH",
3841     "Status": "user"
3842   },
3843   "browser.tabs.warnOnClose": {
3844     "Value": false,
3845     "Status": "locked"
3846   }
3847 }'/>
3848 ```
3849 #### macOS
3850 ```
3851 <dict>
3852   <key>Preferences</key>
3853   <dict>
3854     <key>accessibility.force_disabled</key>
3855     <dict>
3856       <key>Value</key>
3857       <integer>1</integer>
3858       <key>Status</key>
3859       <string>default</string>
3860     </dict>
3861     <key>browser.cache.disk.parent_directory</key>
3862     <dict>
3863       <key>Value</key>
3864       <string>SOME_NATIVE_PATH</string>
3865       <key>Status</key>
3866       <string>user</string>
3867     </dict>
3868     <key>browser.tabs.warnOnClose</key>
3869     <dict>
3870       <key>Value</key>
3871       <false/>
3872       <key>Status</key>
3873       <string>locked</string>
3874     </dict>
3875   </dict>
3876 </dict>
3877 ```
3878 #### policies.json
3879 ```
3880 {
3881   "policies": {
3882     "Preferences": {
3883       "accessibility.force_disabled": {
3884         "Value": 1,
3885         "Status": "default"
3886       },
3887       "browser.cache.disk.parent_directory": {
3888         "Value": "SOME_NATIVE_PATH",
3889         "Status": "user"
3890       },
3891       "browser.tabs.warnOnClose": {
3892         "Value": false,
3893         "Status": "locked"
3894       }
3895     }
3896   }
3897 }
3898 ```
3899 ### Preferences (Deprecated)
3900 Set and lock certain preferences.
3901
3902 **Compatibility:** See below\
3903 **CCK2 Equivalent:** `preferences`\
3904 **Preferences Affected:** See below
3905
3906 | Preference | Type | Compatibility | Default
3907 | --- | --- | --- | ---
3908 | accessibility.force_disabled | integer | Firefox 70, Firefox ESR 68.2 | 0
3909 | &nbsp;&nbsp;&nbsp;&nbsp;If set to 1, platform accessibility is disabled.
3910 | app.update.auto (Deprecated - Switch to AppAutoUpdate policy) | boolean | Firefox 68, Firefox ESR 68 | true
3911 | &nbsp;&nbsp;&nbsp;&nbsp;If false, Firefox doesn't automatically install update.
3912 | browser.bookmarks.autoExportHTML | boolean | Firefox 70, Firefox ESR 68.2 | false
3913 | &nbsp;&nbsp;&nbsp;&nbsp;If true, bookmarks are exported on shutdown.
3914 | browser.bookmarks.file | string | Firefox 70, Firefox ESR 68.2 | N/A
3915 | &nbsp;&nbsp;&nbsp;&nbsp;If set, the name of the file where bookmarks are exported and imported.
3916 | browser.bookmarks.restore_default_bookmarks | boolean | Firefox 70, Firefox ESR 68.2 | N/A
3917 | &nbsp;&nbsp;&nbsp;&nbsp;If true, bookmarks are restored to their defaults.
3918 | browser.cache.disk.enable | boolean | Firefox 68, Firefox ESR 68 | true
3919 | &nbsp;&nbsp;&nbsp;&nbsp;If false, don't store cache on the hard drive.
3920 | ~browser.cache.disk.parent_directory~ | string | Firefox 68, Firefox ESR 68 | Profile temporary directory
3921 | &nbsp;&nbsp;&nbsp;&nbsp;~If set, changes the location of the disk cache.~ This policy doesn't work. It's being worked on.
3922 | browser.fixup.dns_first_for_single_words | boolean | Firefox 68, Firefox ESR 68 | false
3923 | &nbsp;&nbsp;&nbsp;&nbsp;If true, single words are sent to DNS, not directly to search.
3924 | browser.newtabpage.activity-stream.default.sites | string | Firefox 72, ESR 68.4 | Locale dependent
3925 | &nbsp;&nbsp;&nbsp;&nbsp;If set, a list of URLs to use as the default top sites on the new tab page. Due to Firefox limitations, search sites can't be added. In addition, sites with the same name but different TLDs (example.org/example.com) will not display properly.
3926 | browser.places.importBookmarksHTML | boolean | Firefox 70, Firefox ESR 68.2
3927 | &nbsp;&nbsp;&nbsp;&nbsp;If true, bookmarks are always imported on startup.
3928 | browser.safebrowsing.phishing.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
3929 | &nbsp;&nbsp;&nbsp;&nbsp;If false, phishing protection is not enabled (Not recommended)
3930 | browser.safebrowsing.malware.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
3931 | &nbsp;&nbsp;&nbsp;&nbsp;If false, malware protection is not enabled (Not recommended)
3932 | browser.search.update | boolean | Firefox 68, Firefox ESR 68 | true
3933 | &nbsp;&nbsp;&nbsp;&nbsp;If false, updates for search engines are not checked.
3934 | browser.slowStartup.notificationDisabled | boolean | Firefox 70, Firefox ESR 68.2 | false
3935 | &nbsp;&nbsp;&nbsp;&nbsp;If true, a notification isn't shown if startup is slow.
3936 | browser.tabs.warnOnClose | boolean | Firefox 68, Firefox ESR 68 | true
3937 | &nbsp;&nbsp;&nbsp;&nbsp;If false, there is no warning when the browser is closed.
3938 | browser.taskbar.previews.enable | boolean | Firefox 70, Firefox ESR 68.2 (Windows only) | false
3939 | &nbsp;&nbsp;&nbsp;&nbsp;If true, tab previews are shown in the Windows taskbar.
3940 | browser.urlbar.suggest.bookmark | boolean | Firefox 68, Firefox ESR 68 | true
3941 | &nbsp;&nbsp;&nbsp;&nbsp;If false, bookmarks aren't suggested when typing in the URL bar.
3942 | browser.urlbar.suggest.history | boolean | Firefox 68, Firefox ESR 68 | true
3943 | &nbsp;&nbsp;&nbsp;&nbsp;If false, history isn't suggested when typing in the URL bar.
3944 | browser.urlbar.suggest.openpage | boolean | Firefox 68, Firefox ESR 68 | true
3945 | &nbsp;&nbsp;&nbsp;&nbsp;If false, open tabs aren't suggested when typing in the URL bar.
3946 | datareporting.policy.dataSubmissionPolicyBypassNotification | boolean | Firefox 68, Firefox ESR 68 | false
3947 | &nbsp;&nbsp;&nbsp;&nbsp;If true, don't show the privacy policy tab on first run.
3948 | dom.allow_scripts_to_close_windows | boolean | Firefox 70, Firefox ESR 68.2 | false
3949 | &nbsp;&nbsp;&nbsp;&nbsp;If false, web page can close windows.
3950 | dom.disable_window_flip | boolean | Firefox 68, Firefox ESR 68 | true
3951 | &nbsp;&nbsp;&nbsp;&nbsp;If false, web pages can focus and activate windows.
3952 | dom.disable_window_move_resize | boolean | Firefox 68, Firefox ESR 68 | false
3953 | &nbsp;&nbsp;&nbsp;&nbsp;If true, web pages can't move or resize windows.
3954 | dom.event.contextmenu.enabled | boolean | Firefox 68, Firefox ESR 68 | true
3955 | &nbsp;&nbsp;&nbsp;&nbsp;If false, web pages can't override context menus.
3956 | dom.keyboardevent.keypress.hack.dispatch_non_printable_keys.addl | string | Firefox 68, Firefox ESR 68 | N/A
3957 | &nbsp;&nbsp;&nbsp;&nbsp;See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
3958 | dom.keyboardevent.keypress.hack.use_legacy_keycode_and_charcode.addl | string | Firefox 68, Firefox ESR 68 | N/A
3959 | &nbsp;&nbsp;&nbsp;&nbsp;See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
3960 | dom.xmldocument.load.enabled | boolean | Firefox ESR 68.5 | true.
3961 | &nbsp;&nbsp;&nbsp;&nbsp;If false, XMLDocument.load is not available.
3962 | dom.xmldocument.async.enabled | boolean | Firefox ESR 68.5 | true
3963 | &nbsp;&nbsp;&nbsp;&nbsp;If false, XMLDocument.async is not available.
3964 | extensions.blocklist.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
3965 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the extensions blocklist is not used (Not recommended)
3966 | extensions.getAddons.showPane | boolean | Firefox 68, Firefox ESR 68 | N/A
3967 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the Recommendations tab is not displayed in the Add-ons Manager.
3968 | extensions.htmlaboutaddons.recommendations.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
3969 | &nbsp;&nbsp;&nbsp;&nbsp;If false, recommendations are not shown on the Extensions tab in the Add-ons Manager.
3970 | geo.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
3971 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the geolocation API is disabled. | Language dependent
3972 | intl.accept_languages | string | Firefox 70, Firefox ESR 68.2
3973 | &nbsp;&nbsp;&nbsp;&nbsp;If set, preferred language for web pages.
3974 | media.eme.enabled (Deprecated - Switch to EncryptedMediaExtensions policy) | boolean | Firefox 70, Firefox ESR 68.2 | true
3975 | &nbsp;&nbsp;&nbsp;&nbsp;If false, Encrypted Media Extensions are not enabled.
3976 | media.gmp-gmpopenh264.enabled | boolean | Firefox 68, Firefox ESR 68 | true
3977 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the OpenH264  plugin is not downloaded.
3978 | media.gmp-widevinecdm.enabled | boolean | Firefox 68, Firefox ESR 68 | true
3979 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the Widevine plugin is not downloaded.
3980 | media.peerconnection.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
3981 | &nbsp;&nbsp;&nbsp;&nbsp;If false, WebRTC is disabled
3982 | media.peerconnection.ice.obfuscate_host_addresses.whitelist (Deprecated) | string | Firefox 72, Firefox ESR 68.4 | N/A
3983 | &nbsp;&nbsp;&nbsp;&nbsp;If set, a list of domains for which mDNS hostname obfuscation is
3984 disabled
3985 | media.peerconnection.ice.obfuscate_host_addresses.blocklist | string | Firefox 79, Firefox ESR 78.1 | N/A
3986 | &nbsp;&nbsp;&nbsp;&nbsp;If set, a list of domains for which mDNS hostname obfuscation is
3987 disabled
3988 | network.dns.disableIPv6 | boolean | Firefox 68, Firefox ESR 68 | false
3989 | &nbsp;&nbsp;&nbsp;&nbsp;If true, IPv6 DNS lokoups are disabled.
3990 | network.IDN_show_punycode | boolean | Firefox 68, Firefox ESR 68 | false
3991 | &nbsp;&nbsp;&nbsp;&nbsp;If true, display the punycode version of internationalized domain names.
3992 | places.history.enabled | boolean | Firefox 68, Firefox ESR 68 | true
3993 | &nbsp;&nbsp;&nbsp;&nbsp;If false, history is not enabled.
3994 | print.save_print_settings | boolean | Firefox 70, Firefox ESR 68.2 | true
3995 | &nbsp;&nbsp;&nbsp;&nbsp;If false, print settings are not saved between jobs.
3996 | security.default_personal_cert | string | Firefox 68, Firefox ESR 68 | Ask Every Time
3997 | &nbsp;&nbsp;&nbsp;&nbsp;If set to Select Automatically, Firefox automatically chooses the default personal certificate.
3998 | security.mixed_content.block_active_content | boolean | Firefox 70, Firefox ESR 68.2 | true
3999 | &nbsp;&nbsp;&nbsp;&nbsp;If false, mixed active content (HTTP and HTTPS) is not blocked.
4000 | security.osclientcerts.autoload | boolean | Firefox 72 (Windows), Firefox 75 (macOS)  | false
4001 | &nbsp;&nbsp;&nbsp;&nbsp;If true, client certificates are loaded from the operating system certificate store.
4002 | security.ssl.errorReporting.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4003 | &nbsp;&nbsp;&nbsp;&nbsp;If false, SSL errors cannot be sent to Mozilla.
4004 | security.tls.hello_downgrade_check | boolean | Firefox 72, Firefox ESR 68.4 | true
4005 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the TLS 1.3 downgrade check is disabled.
4006 | ui.key.menuAccessKeyFocuses | boolean | Firefox 68, Firefox ESR 68 | true
4007 | &nbsp;&nbsp;&nbsp;&nbsp;If false, the Alt key doesn't show the menubar on Windows.
4008 | widget.content.gtk-theme-override | string | Firefox 72, Firefox ESR 68.4 (Linux only) | N/A
4009 | &nbsp;&nbsp;&nbsp;&nbsp;If set, overrides the GTK theme for widgets.
4010 #### Windows (GPO)
4011 ```
4012 Software\Policies\Mozilla\Firefox\Preferences\boolean_preference_name = 0x1 | 0x0
4013 Software\Policies\Mozilla\Firefox\Preferences\string_preference_name = "string_value"
4014 ```
4015 #### Windows (Intune)
4016 OMA-URI: (periods are replaced by underscores)
4017 ```
4018 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/boolean_preference_name
4019 ```
4020 Value (string):
4021 ```
4022 <enabled/> or <disabled/>
4023 ```
4024 OMA-URI: (periods are replaced by underscores)
4025 ```
4026 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/string_preference_name
4027 ```
4028 Value (string):
4029 ```
4030 <enabled/>
4031 <data id="Preferences_String" value="string_value"/>
4032 ```
4033 #### macOS
4034 ```
4035 <dict>
4036   <key>Preferences</key>
4037   <dict>
4038     <key>boolean_preference_name</key>
4039     <true/> | <false/>
4040     <key>string_preference_name</key>
4041     <string>string_value</string>
4042   </dict>
4043 </dict>
4044 ```
4045 #### policies.json
4046 ```
4047 {
4048   "policies": {
4049     "Preferences": {
4050       "boolean_preference_name": true | false,
4051       "string_preference_name": "string_value"
4052     }
4053   }
4054 }
4055 ```
4056 ### PromptForDownloadLocation
4057 Ask where to save each file before downloading.
4058
4059 **Compatibility:** Firefox 68, Firefox ESR 68\
4060 **CCK2 Equivalent:** N/A\
4061 **Preferences Affected:** `browser.download.useDownloadDir`
4062
4063 #### Windows (GPO)
4064 ```
4065 Software\Policies\Mozilla\Firefox\PromptForDownloadLocation = 0x1 | 0x0
4066 ```
4067 #### Windows (Intune)
4068 OMA-URI:
4069 ```
4070 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PromptForDownloadLocation
4071 ```
4072 Value (string):
4073 ```
4074 <enabled/> or <disabled/>
4075 ```
4076 #### macOS
4077 ```
4078 <dict>
4079   <key>PromptForDownloadLocation</key>
4080   <true/> | <false/>
4081 </dict>
4082 ```
4083 #### policies.json
4084 ```
4085 {
4086   "policies": {
4087     "PromptForDownloadLocation": true | false
4088   }
4089 }
4090 ```
4091 ### Proxy
4092 Configure proxy settings. These settings correspond to the connection settings in Firefox preferences.
4093 To specify ports, append them to the hostnames with a colon (:).
4094
4095 `Mode` is the proxy method being used.
4096
4097 `Locked` is whether or not proxy settings can be changed.
4098
4099 `HTTPProxy` is the HTTP proxy server.
4100
4101 `UseHTTPProxyForAllProtocols` is whether or not the HTTP proxy should be used for all other proxies.
4102
4103 `SSLProxy` is the SSL proxy server.
4104
4105 `FTPProxy` is the FTP proxy server.
4106
4107 `SOCKSProxy` is the SOCKS proxy server
4108
4109 `SOCKSVersion` is the SOCKS version (4 or 5)
4110
4111 `Passthrough` is list of hostnames or IP addresses that will not be proxied. Use `<local>` to bypass proxying for all hostnames which do not contain periods.
4112
4113 `AutoConfigURL` is a  URL for proxy configuration (only used if Mode is autoConfig).
4114
4115 `AutoLogin` means do not prompt for authentication if password is saved.
4116
4117 `UseProxyForDNS` to use proxy DNS when using SOCKS v5.
4118
4119 **Compatibility:** Firefox 60, Firefox ESR 60\
4120 **CCK2 Equivalent:** `networkProxy*`\
4121 **Preferences Affected:** `network.proxy.type`,`network.proxy.autoconfig_url`,`network.proxy.socks_remote_dns`,`signon.autologin.proxy`,`network.proxy.socks_version`,`network.proxy.no_proxies_on`,`network.proxy.share_proxy_settings`,`network.proxy.http`,`network.proxy.http_port`,`network.proxy.ftp`,`network.proxy.ftp_port`,`network.proxy.ssl`,`network.proxy.ssl_port`,`network.proxy.socks`,`network.proxy.socks_port`
4122
4123 #### Windows (GPO)
4124 ```
4125 Software\Policies\Mozilla\Firefox\Proxy\Mode = "none" | "system" | "manual" | "autoDetect" | "autoConfig"
4126 Software\Policies\Mozilla\Firefox\Proxy\Locked = 0x1 | 0x0
4127 Software\Policies\Mozilla\Firefox\=Proxy\HTTPProxy = https://httpproxy.example.com
4128 Software\Policies\Mozilla\Firefox\Proxy\UseHTTPProxyForAllProtocols = 0x1 | 0x0
4129 Software\Policies\Mozilla\Firefox\Proxy\SSLProxy = https://sslproxy.example.com
4130 Software\Policies\Mozilla\Firefox\Proxy\FTPProxy = https://ftpproxy.example.com
4131 Software\Policies\Mozilla\Firefox\Proxy\SOCKSProxy = https://socksproxy.example.com
4132 Software\Policies\Mozilla\Firefox\Proxy\SOCKSVersion = 0x4 | 0x5
4133 Software\Policies\Mozilla\Firefox\Proxy\Passthrough = <local>
4134 Software\Policies\Mozilla\Firefox\Proxy\AutoConfigURL = URL_TO_AUTOCONFIG
4135 Software\Policies\Mozilla\Firefox\Proxy\AutoLogin = 0x1 | 0x0
4136 Software\Policies\Mozilla\Firefox\Proxy\UseProxyForDNS = 0x1 | 0x0
4137 ```
4138 #### Windows (Intune)
4139 OMA-URI:
4140 ```
4141 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy
4142 ```
4143 Value (string):
4144 ```
4145 <enabled/>
4146 <data id="ProxyLocked" value="true | false"/>
4147 <data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
4148 <data id="HTTPProxy" value="https://httpproxy.example.com"/>
4149 <data id="UseHTTPProxyForAllProtocols" value="true | false"/>
4150 <data id="SSLProxy" value="https://sslproxy.example.com"/>
4151 <data id="FTPProxy" value="https://ftpproxy.example.com"/>
4152 <data id="SOCKSProxy" value="https://socksproxy.example.com"/>
4153 <data id="SOCKSVersion" value="4 | 5"/>
4154 <data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
4155 <data id="Passthrough" value="<local>"/>
4156 <data id="AutoLogin" value="true | false"/>
4157 <data id="UseProxyForDNS" value="true | false"/>
4158 ```
4159 #### macOS
4160 ```
4161 <dict>
4162   <key>Proxy</key>
4163   <dict>
4164     <key>Mode</key>
4165     <string>none | system | manual | autoDetect | autoConfig</string>
4166     <key>Locked</key>
4167     <true> | </false>
4168     <key>HTTPProxy</key>
4169     <string>https://httpproxy.example.com</string>
4170     <key>UseHTTPProxyForAllProtocols</key>
4171     <true> | </false>
4172     <key>SSLProxy</key>
4173     <string>https://sslproxy.example.com</string>
4174     <key>FTPProxy</key>
4175     <string>https://ftpproxy.example.com</string>
4176     <key>SOCKSProxy</key>
4177     <string>https://socksproxy.example.com</string>
4178     <key>SOCKSVersion</key>
4179     <string>4 | 5</string>
4180     <key>Passthrough</key>
4181     <string>&lt;local>&gt;</string>
4182     <key>AutoConfigURL</key>
4183     <string>URL_TO_AUTOCONFIG</string>
4184     <key>AutoLogin</key>
4185     <true> | </false>
4186     <key>UseProxyForDNS</key>
4187     <true> | </false>
4188   </dict>
4189 </dict>
4190 ```
4191 #### policies.json
4192 ```
4193 {
4194   "policies": {
4195     "Proxy": {
4196       "Mode": "none" | "system" | "manual" | "autoDetect" | "autoConfig",
4197       "Locked": true | false,
4198       "HTTPProxy": "hostname",
4199       "UseHTTPProxyForAllProtocols": true | false,
4200       "SSLProxy": "hostname",
4201       "FTPProxy": "hostname",
4202       "SOCKSProxy": "hostname",
4203       "SOCKSVersion": 4 | 5
4204       "Passthrough": "<local>",
4205       "AutoConfigURL": "URL_TO_AUTOCONFIG",
4206       "AutoLogin": true | false,
4207       "UseProxyForDNS": true | false
4208     }
4209   }
4210 }
4211 ```
4212 ### RequestedLocales
4213 Set the the list of requested locales for the application in order of preference. It will cause the corresponding language pack to become active.
4214
4215 Note: For Firefox 68, this can now be a string so that you can specify an empty value.
4216
4217 **Compatibility:** Firefox 64, Firefox ESR 60.4, Updated in Firefox 68, Firefox ESR 68\
4218 **CCK2 Equivalent:** N/A\
4219 **Preferences Affected:** N/A
4220 #### Windows (GPO)
4221 ```
4222 Software\Policies\Mozilla\Firefox\RequestedLocales\1 = "de"
4223 Software\Policies\Mozilla\Firefox\RequestedLocales\2 = "en-US"
4224
4225 or
4226
4227 Software\Policies\Mozilla\Firefox\RequestedLocales = "de,en-US"
4228 ```
4229 #### Windows (Intune)
4230 OMA-URI:
4231 ```
4232 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/RequestedLocalesString
4233 ```
4234 Value (string):
4235 ```
4236 <enabled/>
4237 <data id="Preferences_String" value="de,en-US"/>
4238 ```
4239 #### macOS
4240 ```
4241 <dict>
4242   <key>RequestedLocales</key>
4243   <array>
4244     <string>de</string>
4245     <string>en-US</string>
4246   </array>
4247 </dict>
4248
4249 or
4250
4251 <dict>
4252   <key>RequestedLocales</key>
4253   <string>de,en-US</string>
4254 </dict>
4255
4256 ```
4257 #### policies.json
4258 ```
4259 {
4260   "policies": {
4261     "RequestedLocales": ["de", "en-US"]
4262   }
4263 }
4264
4265 or
4266
4267 {
4268   "policies": {
4269     "RequestedLocales": "de,en-US"
4270   }
4271 }
4272 ```
4273 <a name="SanitizeOnShutdown"></a>
4274
4275 ### SanitizeOnShutdown (Selective)
4276 Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.
4277
4278 Previously, these values were always locked. Starting with Firefox 74 and Firefox ESR 68.6, you can use the `Locked` option to either keep the values unlocked (set it to false), or lock only the values you set (set it to true). If you want the old behavior of locking everything, do not set `Locked` at all.
4279
4280 **Compatibility:** Firefox 68, Firefox ESR 68 (Locked added in 74/68.6)\
4281 **CCK2 Equivalent:** N/A\
4282 **Preferences Affected:** `privacy.sanitize.sanitizeOnShutdown`,`privacy.clearOnShutdown.cache`,`privacy.clearOnShutdown.cookies`,`privacy.clearOnShutdown.downloads`,`privacy.clearOnShutdown.formdata`,`privacy.clearOnShutdown.history`,`privacy.clearOnShutdown.sessions`,`privacy.clearOnShutdown.siteSettings`,`privacy.clearOnShutdown.offlineApps`
4283 #### Windows (GPO)
4284 ```
4285 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cache = 0x1 | 0x0
4286 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cookies = 0x1 | 0x0
4287 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Downloads = 0x1 | 0x0
4288 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\FormData = 0x1 | 0x0
4289 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\History = 0x1 | 0x0
4290 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Sessions = 0x1 | 0x0
4291 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\SiteSettings = 0x1 | 0x0
4292 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\OfflineApps = 0x1 | 0x0
4293 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Locked = 0x1 | 0x0
4294 ```
4295 #### Windows (Intune)
4296 OMA-URI:
4297 ```
4298 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/I_SanitizeOnShutdown_Locked
4299 ```
4300 Value (string):
4301 ```
4302 <enabled/> or <disabled/>
4303 ```
4304 #### macOS
4305 ```
4306 <dict>
4307   <key>SanitizeOnShutdown</key>
4308   <dict>
4309     <key>Cache</key>
4310     <true/> | <false/>
4311     <key>Cookies</key>
4312     <true/> | <false/>
4313     <key>Downloads</key>
4314     <true/> | <false/>
4315     <key>FormData</key>
4316     <true/> | <false/>
4317     <key>History</key>
4318     <true/> | <false/>
4319     <key>Sessions</key>
4320     <true/> | <false/>
4321     <key>SiteSettings</key>
4322     <true/> | <false/>
4323     <key>OfflineApps</key>
4324     <true/> | <false/>
4325     <key>Locked</key>
4326     <true/> | <false/>
4327   </dict>
4328 </dict>
4329 ```
4330 #### policies.json
4331 ```
4332 {
4333   "policies": {
4334     "SanitizeOnShutdown": {
4335       "Cache": true | false,
4336       "Cookies": true | false,
4337       "Downloads": true | false,
4338       "FormData": true | false,
4339       "History": true | false,
4340       "Sessions": true | false,
4341       "SiteSettings": true | false,
4342       "OfflineApps": true | false,
4343       "Locked": true | false
4344     }
4345   }
4346 }
4347 ```
4348 ### SanitizeOnShutdown (All)
4349 Clear all data on shutdown, including Browsing & Download History, Cookies, Active Logins, Cache, Form & Search History, Site Preferences and Offline Website Data.
4350
4351 **Compatibility:** Firefox 60, Firefox ESR 60\
4352 **CCK2 Equivalent:** N/A\
4353 **Preferences Affected:** `privacy.sanitize.sanitizeOnShutdown`,`privacy.clearOnShutdown.cache`,`privacy.clearOnShutdown.cookies`,`privacy.clearOnShutdown.downloads`,`privacy.clearOnShutdown.formdata`,`privacy.clearOnShutdown.history`,`privacy.clearOnShutdown.sessions`,`privacy.clearOnShutdown.siteSettings`,`privacy.clearOnShutdown.offlineApps`
4354 #### Windows (GPO)
4355 ```
4356 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown = 0x1 | 0x0
4357 ```
4358 #### Windows (Intune)
4359 OMA-URI:
4360 ```
4361 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/C_SanitizeOnShutdown
4362 ```
4363 Value (string):
4364 ```
4365 <enabled/> or <disabled/>
4366 ```
4367 #### macOS
4368 ```
4369 <dict>
4370   <key>SanitizeOnShutdown</key>
4371   <true/> | <false/>
4372 </dict>
4373 ```
4374 #### policies.json
4375 ```
4376 {
4377   "policies": {
4378     "SanitizeOnShutdown": true | false
4379   }
4380 }
4381 ```
4382 ### SearchBar
4383 Set whether or not search bar is displayed.
4384
4385 **Compatibility:** Firefox 60, Firefox ESR 60\
4386 **CCK2 Equivalent:** `showSearchBar`\
4387 **Preferences Affected:** N/A
4388
4389 #### Windows (GPO)
4390 ```
4391 Software\Policies\Mozilla\Firefox\SearchBar = "unified" | "separate"
4392 ```
4393
4394 #### Windows (Intune)
4395 OMA-URI:
4396 ```
4397 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SearchBar
4398 ```
4399 Value (string):
4400 ```
4401 <enabled/>
4402 <data id="Permissions" value="unified | separate"/>
4403 ```
4404 #### macOS
4405 ```
4406 <dict>
4407   <key>SearchBar</key>
4408   <string>unified | separate</string>
4409 </dict>
4410 ```
4411 #### policies.json
4412 ```
4413 {
4414   "policies": {
4415     "SearchBar": "unified" | "separate"
4416   }
4417 }
4418 ```
4419 <a name="SearchEngines"></a>
4420
4421 ### SearchEngines (This policy is only available on the ESR.)
4422
4423 ### SearchEngines | Default
4424
4425 Set the default search engine. This policy is only available on the ESR.
4426
4427 **Compatibility:** Firefox ESR 60\
4428 **CCK2 Equivalent:** `defaultSearchEngine`\
4429 **Preferences Affected:** N/A
4430
4431 #### Windows (GPO)
4432 ```
4433 Software\Policies\Mozilla\Firefox\SearchEngines\Default = NAME_OF_SEARCH_ENGINE
4434 ```
4435 #### Windows (Intune)
4436 OMA-URI:
4437 ```
4438 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Default
4439 ```
4440 Value (string):
4441 ```
4442 <enabled/>
4443 <data id="SearchEngines_Default" value="NAME_OF_SEARCH_ENGINE"/>
4444 ```
4445 #### macOS
4446 ```
4447 <dict>
4448   <key>SearchEngines</key>
4449   <dict>
4450     <key>Default</key>
4451     <string>NAME_OF_SEARCH_ENGINE</string>
4452   </dict>
4453 </dict>
4454 ```
4455 #### policies.json
4456 ```
4457 {
4458   "policies": {
4459     "SearchEngines": {
4460       "Default": "NAME_OF_SEARCH_ENGINE"
4461     }
4462   }
4463 }
4464 ```
4465 ### SearchEngines | PreventInstalls
4466
4467 Prevent installing search engines from webpages.
4468
4469 **Compatibility:** Firefox ESR 60\
4470 **CCK2 Equivalent:** `disableSearchEngineInstall`\
4471 **Preferences Affected:** N/A
4472
4473 #### Windows (GPO)
4474 ```
4475 Software\Policies\Mozilla\Firefox\SearchEngines\PreventInstalls = 0x1 | 0x0
4476 ```
4477 #### Windows (Intune)
4478 OMA-URI:
4479 ```
4480 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_PreventInstalls
4481 ```
4482 Value (string):
4483 ```
4484 <enabled/> or <disabled/>
4485 ```
4486 #### macOS
4487 ```
4488 <dict>
4489   <key>SearchEngines</key>
4490   <dict>
4491     <key>PreventInstalls</key>
4492     <true/> | <false/>
4493   </dict>
4494 </dict>
4495 ```
4496 #### policies.json
4497 ```
4498 {
4499   "policies": {
4500     "SearchEngines": {
4501       "PreventInstalls": true | false
4502     }
4503   }
4504 }
4505 ```
4506 ### SearchEngines | Remove
4507
4508 Hide built-in search engines. This policy is only available on the ESR.
4509
4510 **Compatibility:** Firefox ESR 60.2\
4511 **CCK2 Equivalent:** `removeDefaultSearchEngines` (removed all built-in engines)\
4512 **Preferences Affected:** N/A
4513
4514 #### Windows (GPO)
4515 ```
4516 Software\Policies\Mozilla\Firefox\SearchEngines\Remove\1 = NAME_OF_SEARCH_ENGINE
4517 ```
4518 #### Windows (Intune)
4519 OMA-URI:
4520 ```
4521 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Remove
4522 ```
4523 Value (string):
4524 ```
4525 <enabled/>
4526 <data id="SearchEngines_Remove" value="1&#xF000;NAME_OF_SEARCH_ENGINE"/>
4527 ```
4528 #### macOS
4529 ```
4530 <dict>
4531   <key>SearchEngines</key>
4532   <dict>
4533     <key>Remove</key>
4534     <array>
4535       <string>NAME_OF_SEARCH_ENGINE</string>
4536     </array>
4537   </dict>
4538 </dict>
4539 ```
4540 #### policies.json
4541 ```
4542 {
4543   "policies": {
4544     "SearchEngines": {
4545       "Remove": ["NAME_OF_SEARCH_ENGINE"]
4546     }
4547   }
4548 }
4549 ```
4550 ### SearchEngines | Add
4551
4552 Add new search engines (up to five). This policy is only available on the ESR. `Name` and `URLTemplate` are required.
4553
4554 `Name` is the name of the search engine.
4555
4556 `URLTemplate` is the search URL with {searchTerms} to substitute for the search term.
4557
4558 `Method` is either GET or POST
4559
4560 `IconURL` is a URL for the icon to use.
4561
4562 `Alias` is a keyword to use for the engine.
4563
4564 `Description` is a description of the search engine.
4565
4566 `PostData` is the POST data as name value pairs separated by &.
4567
4568 `SuggestURLTemplate` is a search suggestions URL with {searchTerms} to substitute for the search term.
4569
4570 **Compatibility:** Firefox ESR 60 (POST support in Firefox ESR 68)\
4571 **CCK2 Equivalent:** `searchplugins`\
4572 **Preferences Affected:** N/A
4573
4574 #### Windows (GPO)
4575 ```
4576 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Name = "Example1"
4577 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\URLTemplate = "https://www.example.org/q={searchTerms}"
4578 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Method = "GET" | "POST"
4579 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\IconURL = "https://www.example.org/favicon.ico"
4580 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Alias = "example"
4581 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Description = "Example Description"
4582 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\SuggestURLTemplate = "https://www.example.org/suggestions/q={searchTerms}"
4583 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\PostData = "name=value&q={searchTerms}"
4584 ```
4585 #### Windows (Intune)
4586 OMA-URI:
4587 ```
4588 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_1
4589 ```
4590 Value (string):
4591 ```
4592 <enabled/>
4593 <data id="SearchEngine_Name" value="Example1"/>
4594 <data id="SearchEngine_URLTemplate" value="https://www.example.org/q={searchTerms"/>
4595 <data id="SearchEngine_Method" value="GET | POST"/>
4596 <data id="SearchEngine_IconURL" value="https://www.example.org/favicon.ico"/>
4597 <data id="SearchEngine_Alias" value="example"/>
4598 <data id="SearchEngine_Description" value="Example Description"/>
4599 <data id="SearchEngine_SuggestURLTemplate" value="https://www.example.org/suggestions/q={searchTerms}"/>
4600 <data id="SearchEngine_PostData" value="name=value&amp;q={searchTerms}"/>
4601 ```
4602 #### macOS
4603 ```
4604 <dict>
4605   <key>SearchEngines</key>
4606   <dict>
4607     <key>Add</key>
4608     <array>
4609       <dict>
4610         <key>Name</key>
4611         <string>Example1</string>
4612         <key>URLTemplate</key>
4613         <string>https://www.example.org/q={searchTerms}</string>
4614         <key>Method</key>
4615         <string>GET | POST </string>
4616         <key>IconURL</key>
4617         <string>https://www.example.org/favicon.ico</string>
4618         <key>Alias</key>
4619         <string>example</string>
4620         <key>Description</key>
4621         <string>Example Description</string>
4622         <key>SuggestURLTemplate</key>
4623         <string>https://www.example.org/suggestions/q={searchTerms}</string>
4624         <key>PostData</key>
4625         <string>name=value&q={searchTerms}</string>
4626       </dict>
4627     <array>
4628   </dict>
4629 </dict>
4630 ```
4631 #### policies.json
4632 ```
4633 {
4634   "policies": {
4635     "SearchEngines": {
4636       "Add": [
4637         {
4638           "Name": "Example1",
4639           "URLTemplate": "https://www.example.org/q={searchTerms}",
4640           "Method": "GET" | "POST",
4641           "IconURL": "https://www.example.org/favicon.ico",
4642           "Alias": "example",
4643           "Description": "Description",
4644           "PostData": "name=value&q={searchTerms}",
4645           "SuggestURLTemplate": "https://www.example.org/suggestions/q={searchTerms}"
4646         }
4647       ]
4648     }
4649   }
4650 }
4651 ```
4652 ### SearchSuggestEnabled
4653
4654 Enable search suggestions.
4655
4656 **Compatibility:** Firefox 68, Firefox ESR 68\
4657 **CCK2 Equivalent:** N/A\
4658 **Preferences Affected:** `browser.urlbar.suggest.searches`,`browser.search.suggest.enabled`
4659
4660 #### Windows (GPO)
4661 ```
4662 Software\Policies\Mozilla\Firefox\SearchSuggestEnabled = 0x1 | 0x0
4663 ```
4664 #### Windows (Intune)
4665 OMA-URI:
4666 ```
4667 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchSuggestEnabled
4668 ```
4669 Value (string):
4670 ```
4671 <enabled/> or <disabled/>
4672 ```
4673 #### macOS
4674 ```
4675 <dict>
4676   <key>SearchSuggestEnabled</key>
4677   <true/> | <false/>
4678 </dict>
4679 ```
4680 #### policies.json
4681 ```
4682 {
4683   "policies": {
4684     "SearchSuggestEnabled": true | false
4685   }
4686 }
4687 ```
4688 ### SecurityDevices
4689
4690 Install PKCS #11 modules.
4691
4692 **Compatibility:** Firefox 64, Firefox ESR 60.4\
4693 **CCK2 Equivalent:** `certs.devices`\
4694 **Preferences Affected:** N/A
4695
4696 #### Windows (GPO)
4697 ```
4698 Software\Policies\Mozilla\Firefox\SecurityDevices\NAME_OF_DEVICE = PATH_TO_LIBRARY_FOR_DEVICE
4699 ```
4700 #### Windows (Intune)
4701 OMA-URI:
4702 ```
4703 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices
4704 ```
4705 Value (string):
4706 ```
4707 <enabled/>
4708 <data id="SecurityDevices" value="NAME_OF_DEVICE&#xF000;PATH_TO_LIBRARY_FOR_DEVICE"/>
4709 ```
4710 #### macOS
4711 ```
4712 <dict>
4713   <key>SecurityDevices</key>
4714   <dict>
4715     <key>NAME_OF_DEVICE</key>
4716     <string>PATH_TO_LIBRARY_FOR_DEVICE</string>
4717   </dict>
4718 </dict>
4719 ```
4720
4721 #### policies.json
4722 ```
4723 {
4724   "policies": {
4725     "SecurityDevices": {
4726       "NAME_OF_DEVICE": "PATH_TO_LIBRARY_FOR_DEVICE"
4727     }
4728   }
4729 }
4730 ```
4731 ### SSLVersionMax
4732
4733 Set and lock the maximum version of TLS.
4734
4735 **Compatibility:** Firefox 66, Firefox ESR 60.6\
4736 **CCK2 Equivalent:** N/A\
4737 **Preferences Affected:** `security.tls.version.max`
4738
4739 #### Windows (GPO)
4740 ```
4741 Software\Policies\Mozilla\Firefox\SSLVersionMax = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
4742 ```
4743 #### Windows (Intune)
4744 OMA-URI:
4745 ```
4746 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMax
4747 ```
4748 Value (string):
4749 ```
4750 <enabled/>
4751 <data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>
4752 ```
4753 #### macOS
4754 ```
4755 <dict>
4756   <key>SSLVersionMax</key>
4757   <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
4758 </dict>
4759 ```
4760
4761 #### policies.json
4762 ```
4763 {
4764   "policies": {
4765     "SSLVersionMax": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
4766   }
4767 }
4768 ```
4769 ### SSLVersionMin
4770
4771 Set and lock the minimum version of TLS.
4772
4773 **Compatibility:** Firefox 66, Firefox ESR 60.6\
4774 **CCK2 Equivalent:** N/A\
4775 **Preferences Affected:** `security.tls.version.min`
4776
4777 #### Windows (GPO)
4778 ```
4779 Software\Policies\Mozilla\Firefox\SSLVersionMin = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
4780 ```
4781 #### Windows (Intune)
4782 OMA-URI:
4783 ```
4784 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMin
4785 ```
4786 Value (string):
4787 ```
4788 <enabled/>
4789 <data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>
4790 ```
4791 #### macOS
4792 ```
4793 <dict>
4794   <key>SSLVersionMin</key>
4795   <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
4796 </dict>
4797 ```
4798
4799 #### policies.json
4800 ```
4801 {
4802   "policies": {
4803     "SSLVersionMin": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
4804   }
4805 }
4806 ```
4807 ### SupportMenu
4808 Add a menuitem to the help menu for specifying support information.
4809
4810 **Compatibility:** Firefox 68.0.1, Firefox ESR 68.0.1\
4811 **CCK2 Equivalent:** helpMenu\
4812 **Preferences Affected:** N/A
4813
4814 #### Windows (GPO)
4815 ```
4816 Software\Policies\Mozilla\Firefox\SupportMenu\Title = "Support Menu"
4817 Software\Policies\Mozilla\Firefox\SupportMenu\URL = "http://example.com/support"
4818 Software\Policies\Mozilla\Firefox\SupportMenu\AccessKey = "S"
4819 ```
4820 #### Windows (Intune)
4821 OMA-URI:
4822 ```
4823 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SupportMenu
4824 ```
4825 Value (string):
4826 ```
4827 <enabled/>
4828 <data id="SupportMenuTitle" value="Support Menu"/>
4829 <data id="SupportMenuURL" value="http://example.com/support"/>
4830 <data id="SupportMenuAccessKey" value="S">
4831 ```
4832 #### macOS
4833 ```
4834 <dict>
4835   <key>SupportMenu</key>
4836   <dict>
4837     <key>Title</key>
4838     <string>SupportMenu</string>
4839     <key>URL</key>
4840     <string>http://example.com/support</string>
4841     <key>AccessKey</key>
4842     <string>S</string>
4843   </dict>
4844 </dict>
4845 ```
4846 #### policies.json
4847 ```
4848 {
4849   "policies": {
4850     "SupportMenu": {
4851       "Title": "Support Menu",
4852       "URL": "http://example.com/support",
4853       "AccessKey": "S"
4854     }
4855   }
4856 }
4857 ```
4858 ### UserMessaging
4859
4860 Prevent Firefox from messaging the user in certain situations.
4861
4862 `WhatsNew` Remove the "What's New" icon and menuitem. (Firefox 75 only)
4863
4864 `ExtensionRecommendations` Don't recommend extensions while the user is visiting web pages.
4865
4866 `FeatureRecommendations` Don't recommend browser features.
4867
4868 `UrlbarInterventions` Don't offer Firefox specific suggestions in the URL bar. (Firefox 75 only)
4869
4870 **Compatibility:** Firefox 75, Firefox ESR 68.7\
4871 **CCK2 Equivalent:** N/A\
4872 **Preferences Affected:** `browser.messaging-system.whatsNewPanel.enabled`,`browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons`,`browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features`
4873
4874 #### Windows (GPO)
4875 ```
4876 Software\Policies\Mozilla\Firefox\UserMessaging\WhatsNew = 0x1 | 0x0
4877 Software\Policies\Mozilla\Firefox\UserMessaging\ExtensionRecommendations = 0x1 | 0x0
4878 Software\Policies\Mozilla\Firefox\UserMessaging\FeatureRecommendations = 0x1 | 0x0
4879 Software\Policies\Mozilla\Firefox\UserMessaging\UrlbarInterventions = 0x1 | 0x0
4880 ```
4881 #### Windows (Intune)
4882 OMA-URI:
4883 ```
4884 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_WhatsNew
4885 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_ExtensionRecommendations
4886 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_FeatureRecommendations
4887 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_UrlbarInterventions
4888 ```
4889 Value (string):
4890 ```
4891 <enabled/> or <disabled/>
4892 ```
4893 #### macOS
4894 ```
4895 <dict>
4896   <key>UserMessaging</key>
4897   <dict>
4898     <key>WhatsNew</key>
4899     <true/> | <false/>
4900     <key>ExtensionRecommendations</key>
4901     <true/> | <false/>
4902     <key>FeatureRecommendations</key>
4903     <true/> | <false/>
4904     <key>UrlbarInterventions</key>
4905     <true/> | <false/>
4906   </dict>
4907 </dict>
4908 ```
4909 #### policies.json
4910 ```
4911 {
4912   "policies": {
4913     "UserMessaging": {
4914       "WhatsNew": true | false,
4915       "ExtensionRecommendations": true | false,
4916       "FeatureRecommendations": true | false,
4917       "UrlbarInterventions": true | false
4918     }
4919   }
4920 }
4921 ```
4922 ### WebsiteFilter
4923 Block websites from being visited. The parameters take an array of Match Patterns, as documented in https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Match_patterns. Only http/https addresses are supported at the moment. The arrays are limited to 1000 entries each.
4924
4925 **Compatibility:** Firefox 60, Firefox ESR 60\
4926 **CCK2 Equivalent:** N/A\
4927 **Preferences Affected:** N/A
4928
4929 #### Windows (GPO)
4930 ```
4931 Software\Policies\Mozilla\Firefox\WebsiteFilter\Block\1 = "<all_urls>"
4932 Software\Policies\Mozilla\Firefox\WebsiteFilter\Exceptions\1 = "http://example.org/*"
4933 ```
4934 #### Windows (Intune)
4935 OMA-URI:
4936 ```
4937 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Block
4938 ```
4939 Value (string):
4940 ```
4941 <enabled/>
4942 <data id="WebsiteFilter" value="1&#xF000;<all_urls>"/>
4943 ```
4944 OMA-URI:
4945 ```
4946 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Exceptions
4947 ```
4948 Value (string):
4949 ```
4950 <enabled/>
4951 <data id="WebsiteFilter" value="1&#xF000;http://example.org/*"/>
4952 ```
4953 #### macOS
4954 ```
4955 <dict>
4956   <key>WebsiteFilter</key>
4957   <dict>
4958     <key>Block</key>
4959     <array>
4960       <string><all_urls></string>
4961     </array>
4962     <key>Exceptions</key>
4963     <array>
4964       <string>http://example.org/*</string>
4965     </array>
4966   </dict>
4967
4968 </dict>
4969 ```
4970 #### policies.json
4971 ```
4972 {
4973   "policies": {
4974     "WebsiteFilter": {
4975       "Block": ["<all_urls>"],
4976       "Exceptions": ["http://example.org/*"]
4977     }
4978   }
4979 }
4980 ```