1 **These policies are in active development and so might contain changes that do not work with current versions of Firefox.**
3 **You should use the [officially released versions](https://github.com/mozilla/policy-templates/releases) if you are deploying changes.**
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`.
7 | Policy Name | Description
9 | **[`3rdparty`](#3rdparty)** | Set policies that WebExtensions can access via chrome.storage.managed.
10 | **[`AppAutoUpdate`](#appautoupdate)** | Enable or disable automatic application update.
11 | **[`AppUpdateURL`](#appupdateurl)** | Change the URL for application update.
12 | **[`Authentication`](#authentication)** | Configure sites that support integrated authentication.
13 | **[`BlockAboutAddons`](#blockaboutaddons)** | Block access to the Add-ons Manager (about:addons).
14 | **[`BlockAboutConfig`](#blockaboutconfig)** | Block access to about:config.
15 | **[`BlockAboutProfiles`](#blockaboutprofiles)** | Block access to About Profiles (about:profiles).
16 | **[`BlockAboutSupport`](#blockaboutsupport)** | Block access to Troubleshooting Information (about:support).
17 | **[`Bookmarks`](#bookmarks)** | Add bookmarks in either the bookmarks toolbar or menu.
18 | **[`CaptivePortal`](#captiveportal)** | Enable or disable the detection of captive portals.
19 | **[`Certificates`](#certificates)** |
20 | **[`Certificates -> ImportEnterpriseRoots`](#certificates--importenterpriseroots)** | Trust certificates that have been added to the operating system certificate store by a user or administrator.
21 | **[`Certificates -> Install`](#certificates--install)** | Install certificates into the Firefox certificate store.
22 | **[`Cookies`](#cookies)** | Configure cookie preferences.
23 | **[`DisableAppUpdate`](#disableappupdate)** | Turn off application updates.
24 | **[`DisableBuiltinPDFViewer`](#disablebuiltinpdfviewer)** | Disable the built in PDF viewer.
25 | **[`DisabledCiphers`](#disabledciphers)** | Disable ciphers.
26 | **[`DisableDefaultBrowserAgent`](#disabledefaultbrowseragent)** | Prevent the default browser agent from taking any actions (Windows only).
27 | **[`DisableDeveloperTools`](#disabledevelopertools)** | Remove access to all developer tools.
28 | **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
29 | **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.
30 | **[`DisableFirefoxAccounts`](#disablefirefoxaccounts)** | Disable Firefox Accounts integration (Sync).
31 | **[`DisableFirefoxStudies`](#disablefirefoxstudies)** | Disable Firefox studies (Shield).
32 | **[`DisableForgetButton`](#disableforgetbutton)** | Disable the "Forget" button.
33 | **[`DisableFormHistory`](#disableformhistory)** | Turn off saving information on web forms and the search bar.
34 | **[`DisableMasterPasswordCreation`](#disablemasterpasswordcreation)** | Remove the master password functionality.
35 | **[`DisablePasswordReveal`](#disablepasswordreveal)** | Do not allow passwords to be revealed in saved logins.
36 | **[`DisablePocket`](#disablepocket)** | Remove Pocket in the Firefox UI.
37 | **[`DisablePrivateBrowsing`](#disableprivatebrowsing)** | Remove access to private browsing.
38 | **[`DisableProfileImport`](#disableprofileimport)** | Disables the "Import data from another browser" option in the bookmarks window.
39 | **[`DisableProfileRefresh`](#disableprofilerefresh)** | Disable the Refresh Firefox button on about:support and support.mozilla.org
40 | **[`DisableSafeMode`](#disablesafemode)** | Disable safe mode within the browser.
41 | **[`DisableSecurityBypass`](#disablesecuritybypass)** | Prevent the user from bypassing security in certain cases.
42 | **[`DisableSetDesktopBackground`](#disablesetdesktopbackground)** | Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
43 | **[`DisableSystemAddonUpdate`](#disablesystemaddonupdate)** | Prevent system add-ons from being installed or update.
44 | **[`DisableTelemetry`](#disabletelemetry)** | DisableTelemetry
45 | **[`DisplayBookmarksToolbar`](#displaybookmarkstoolbar)** | Set the initial state of the bookmarks toolbar.
46 | **[`DisplayMenuBar (Deprecated)`](#displaymenubar-deprecated)** | Set the initial state of the menubar.
47 | **[`DisplayMenuBar`](#displaymenubar)** | Set the state of the menubar.
48 | **[`DNSOverHTTPS`](#dnsoverhttps)** | Configure DNS over HTTPS.
49 | **[`DontCheckDefaultBrowser`](#dontcheckdefaultbrowser)** | Don't check if Firefox is the default browser at startup.
50 | **[`DefaultDownloadDirectory`](#defaultdownloaddirectory)** | Set the default download directory.
51 | **[`DownloadDirectory`](#downloaddirectory)** | Set and lock the download directory.
52 | **[`EnableTrackingProtection`](#enabletrackingprotection)** | Configure tracking protection.
53 | **[`EncryptedMediaExtensions`](#encryptedmediaextensions)** | Enable or disable Encrypted Media Extensions and optionally lock it.
54 | **[`EnterprisePoliciesEnabled`](#enterprisepoliciesenabled)** | Enable policy support on macOS.
55 | **[`Extensions`](#extensions)** | Control the installation, uninstallation and locking of extensions.
56 | **[`ExtensionSettings`](#extensionsettings)** | Manage all aspects of extensions.
57 | **[`ExtensionUpdate`](#extensionupdate)** | Control extension updates.
58 | **[`FlashPlugin`](#flashplugin)** | Configure the default Flash plugin policy as well as origins for which Flash is allowed.
59 | **[`FirefoxHome`](#firefoxhome)** | Customize the Firefox Home page.
60 | **[`HardwareAcceleration`](#hardwareacceleration)** | Control hardware acceleration.
61 | **[`Handlers`](#handlers)** | Configure default application handlers.
62 | **[`Homepage`](#homepage)** | Configure the default homepage and how Firefox starts.
63 | **[`InstallAddonsPermission`](#installaddonspermission)** | Configure the default extension install policy as well as origins for extension installs are allowed.
64 | **[`LegacyProfiles`](#legacyprofiles)** | Disable the feature enforcing a separate profile for each installation.
65 | **[`LocalFileLinks`](#localfilelinks)** | Enable linking to local files by origin.
66 | **[`ManagedBookmarks`](#managedbookmarks)** | Configures a list of bookmarks managed by an administrator that cannot be changed by the user.
67 | **[`ManualAppUpdateOnly`](#manualappupdateonly)** | Allow manual updates only and do not notify the user about updates..
68 | **[`PrimaryPassword`](#primarypassword)** | Require or prevent using a primary (formerly master) password.
69 | **[`NetworkPrediction`](#networkprediction)** | Enable or disable network prediction (DNS prefetching).
70 | **[`NewTabPage`](#newtabpage)** | Enable or disable the New Tab page.
71 | **[`NoDefaultBookmarks`](#nodefaultbookmarks)** | Disable the creation of default bookmarks.
72 | **[`OfferToSaveLogins`](#offertosavelogins)** | Control whether or not Firefox offers to save passwords.
73 | **[`OfferToSaveLoginsDefault`](#offertosaveloginsdefault)** | Set the default value for whether or not Firefox offers to save passwords.
74 | **[`OverrideFirstRunPage`](#overridefirstrunpage)** | Override the first run page.
75 | **[`OverridePostUpdatePage`](#overridepostupdatepage)** | Override the upgrade page.
76 | **[`PasswordManagerEnabled`](#passwordmanagerenabled)** | Remove (some) access to the password manager.
77 | **[`PDFjs`](#pdfjs)** | Disable or configure PDF.js, the built-in PDF viewer.
78 | **[`Permissions`](#permissions)** | Set permissions associated with camera, microphone, location, and notifications.
79 | **[`PictureInPicture`](#pictureinpicture)** | Enable or disable Picture-in-Picture.
80 | **[`PopupBlocking`](#popupblocking)** | Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
81 | **[`Preferences`](#preferences)** | Set and lock preferences.
82 | **[`Preferences (Deprecated)`](#preferences-deprecated)** | Set and lock some preferences.
83 | **[`PromptForDownloadLocation`](#promptfordownloadlocation)** | Ask where to save each file before downloading.
84 | **[`Proxy`](#proxy)** | Configure proxy settings.
85 | **[`RequestedLocales`](#requestedlocales)** | Set the the list of requested locales for the application in order of preference.
86 | **[`SanitizeOnShutdown` (All)](#sanitizeonshutdown-all)** | Clear all data on shutdown.
87 | **[`SanitizeOnShutdown` (Selective)](#sanitizeonshutdown-selective)** | Clear data on shutdown.
88 | **[`SearchBar`](#searchbar)** | Set whether or not search bar is displayed.
89 | **[`SearchEngines`](#searchengines-this-policy-is-only-available-on-the-esr)** |
90 | **[`SearchEngines -> Default`](#searchengines--default)** | Set the default search engine.
91 | **[`SearchEngines -> PreventInstalls`](#searchengines--preventinstalls)** | Prevent installing search engines from webpages.
92 | **[`SearchEngines -> Remove`](#searchengines--remove)** | Hide built-in search engines.
93 | **[`SearchEngines -> Add`](#searchengines--add)** | Add new search engines.
94 | **[`SearchSuggestEnabled`](#searchsuggestenabled)** | Enable search suggestions.
95 | **[`SecurityDevices`](#securitydevices)** | Install PKCS #11 modules.
96 | **[`ShowHomeButton`](#showhomebutton)** | Show the home button on the toolbar.
97 | **[`SSLVersionMax`](#sslversionmax)** | Set and lock the maximum version of TLS.
98 | **[`SSLVersionMin`](#sslversionmin)** | Set and lock the minimum version of TLS.
99 | **[`SupportMenu`](#supportmenu)** | Add a menuitem to the help menu for specifying support information.
100 | **[`UserMessaging`](#usermessaging)** | Don't show certain messages to the user.
101 | **[`WebsiteFilter`](#websitefilter)** | Block websites from being visited.
105 Allow WebExtensions to configure policy. For more information, see [Adding policy support to your extension](https://extensionworkshop.com/documentation/enterprise/adding-policy-support-to-your-extension/).
109 Enable or disable **automatic** application update.
111 If set to true, application updates are installed without user approval within Firefox. The operating system might still require approval.
113 If set to false, application updates are downloaded but the user can choose when to install the update.
115 If you have disabled updates via DisableAppUpdate, this policy has no effect.
117 **Compatibility:** Firefox 75, Firefox ESR 68.7\
118 **CCK2 Equivalent:** N/A\
119 **Preferences Affected:** app.update.auto
123 Software\Policies\Mozilla\Firefox\AppAutoUpdate = 0x1 | 0x0
125 #### Windows (Intune)
128 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppAutoUpdate
132 <enabled/> or <disabled/>
137 <key>AppAutoUpdate</key>
145 "AppAutoUpdate": true | false
151 Change the URL for application update if you are providing Firefox updates from a custom update server.
153 **Compatibility:** Firefox 62, Firefox ESR 60.2\
154 **CCK2 Equivalent:** N/A\
155 **Preferences Affected:** `app.update.url`
159 Software\Policies\Mozilla\Firefox\AppUpdateURL = "https://yoursite.com"
161 #### Windows (Intune)
164 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdateURL
169 <data id="AppUpdateURL" value="https://yoursite.com"/>
174 <key>AppUpdateURL</key>
175 <string>https://yoursite.com</string>
182 "AppUpdateURL": "https://yoursite.com"
188 Configure sites that support integrated authentication.
190 See https://developer.mozilla.org/en-US/docs/Mozilla/Integrated_authentication for more information.
192 `PrivateBrowsing` enables integrated authentication in private browsing.
194 **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)\
195 **CCK2 Equivalent:** N/A\
196 **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`
200 Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\1 = "mydomain.com"
201 Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\2 = "https://myotherdomain.com"
202 Software\Policies\Mozilla\Firefox\Authentication\Delegated\1 = "mydomain.com"
203 Software\Policies\Mozilla\Firefox\Authentication\Delegated\2 = "https://myotherdomain.com"
204 Software\Policies\Mozilla\Firefox\Authentication\NTLM\1 = "mydomain.com"
205 Software\Policies\Mozilla\Firefox\Authentication\NTLM\2 = "https://myotherdomain.com"
206 Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\SPNEGO = 0x1 | 0x0
207 Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\NTLM = 0x1 | 0x0
208 Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\SPNEGO = 0x1 | 0x0
209 Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\NTLM = 0x1 | 0x0
210 Software\Policies\Mozilla\Firefox\Authentication\Locked = 0x1 | 0x0
211 Software\Policies\Mozilla\Firefox\Authentication\PrivateBrowsing = 0x1 | 0x0
213 #### Windows (Intune)
216 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_SPNEGO
221 <data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
225 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Delegated
230 <data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
234 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_NTLM
239 <data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
243 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_AllowNonFQDN
248 <data id="Authentication_AllowNonFQDN_NTLM" value="true | false"/>
249 <data id="Authentication_AllowNonFQDN_SPNEGO" value="true | false"/>
253 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Locked
257 <enabled/> or <disabled/>
261 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_PrivateBrowsing
265 <enabled/> or <disabled/>
270 <key>Authentication</key>
274 <string>mydomain.com</string>
275 <string>https://myotherdomain.com</string>
279 <string>mydomain.com</string>
280 <string>https://myotherdomain.com</string>
284 <string>mydomain.com</string>
285 <string>https://myotherdomain.com</string>
287 <key>AllowNonFQDN</key>
294 <key>AllowProxies</key>
303 <key>PrivateBrowsing</key>
313 "SPNEGO": ["mydomain.com", "https://myotherdomain.com"],
314 "Delegated": ["mydomain.com", "https://myotherdomain.com"],
315 "NTLM": ["mydomain.com", "https://myotherdomain.com"],
317 "SPNEGO": true | false,
321 "SPNEGO": true | false,
324 "Locked": true | false,
325 "PrivateBrowsing": true | false
332 Block access to the Add-ons Manager (about:addons).
334 **Compatibility:** Firefox 60, Firefox ESR 60\
335 **CCK2 Equivalent:** `disableAddonsManager`\
336 **Preferences Affected:** N/A
340 Software\Policies\Mozilla\Firefox\BlockAboutAddons = 0x1 | 0x0
342 #### Windows (Intune)
345 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutAddons
349 <enabled/> or <disabled/>
354 <key>BlockAboutAddons</key>
362 "BlockAboutAddons": true | false
368 Block access to about:config.
370 **Compatibility:** Firefox 60, Firefox ESR 60\
371 **CCK2 Equivalent:** `disableAboutConfig`\
372 **Preferences Affected:** N/A
376 Software\Policies\Mozilla\Firefox\BlockAboutConfig = 0x1 | 0x0
378 #### Windows (Intune)
381 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutConfig
385 <enabled/> or <disabled/>
390 <key>BlockAboutConfig</key>
398 "BlockAboutConfig": true | false
402 ### BlockAboutProfiles
404 Block access to About Profiles (about:profiles).
406 **Compatibility:** Firefox 60, Firefox ESR 60\
407 **CCK2 Equivalent:** `disableAboutProfiles`\
408 **Preferences Affected:** N/A
412 Software\Policies\Mozilla\Firefox\BlockAboutProfiles = 0x1 | 0x0
414 #### Windows (Intune)
417 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutProfiles
421 <enabled/> or <disabled/>
426 <key>BlockAboutProfiles</key>
434 "BlockAboutProfiles": true | false
438 ### BlockAboutSupport
440 Block access to Troubleshooting Information (about:support).
442 **Compatibility:** Firefox 60, Firefox ESR 60\
443 **CCK2 Equivalent:** `disableAboutSupport`\
444 **Preferences Affected:** N/A
448 Software\Policies\Mozilla\Firefox\BlockAboutSupport = 0x1 | 0x0
450 #### Windows (Intune)
453 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutSupport
457 <enabled/> or <disabled/>
462 <key>BlockAboutSupport</key>
470 "BlockAboutSupport": true | false
476 Note: [`ManagedBookmarks`](#managedbookmarks) is the new recommended way to add bookmarks. This policy will continue to be supported.
478 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.
480 **Compatibility:** Firefox 60, Firefox ESR 60\
481 **CCK2 Equivalent:** `bookmarks.toolbar`,`bookmarks.menu`\
482 **Preferences Affected:** N/A
486 Software\Policies\Mozilla\Firefox\Bookmarks\1\Title = "Example"
487 Software\Policies\Mozilla\Firefox\Bookmarks\1\URL = "https://example.com"
488 Software\Policies\Mozilla\Firefox\Bookmarks\1\Favicon = "https://example.com/favicon.ico"
489 Software\Policies\Mozilla\Firefox\Bookmarks\1\Placement = "toolbar" | "menu"
490 Software\Policies\Mozilla\Firefox\Bookmarks\1\Folder = "FolderName"
492 #### Windows (Intune)
495 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Bookmarks/Bookmark01
500 <data id="BookmarkTitle" value="Example"/>
501 <data id="BookmarkURL" value="https://example.com"/>
502 <data id="BookmarkFavicon" value="https://example.com/favicon.ico"/>
503 <data id="BookmarkPlacement" value="toolbar | menu"/>
504 <data id="BookmarkFolder" value="FolderName"/>
513 <string>Example</string>
515 <string>https://example.com</string>
517 <string>https://example.com/favicon.ico</string>
519 <string>toolbar | menu</string>
521 <string>FolderName</string>
533 "URL": "https://example.com",
534 "Favicon": "https://example.com/favicon.ico",
535 "Placement": "toolbar" | "menu",
536 "Folder": "FolderName"
543 Enable or disable the detection of captive portals.
545 **Compatibility:** Firefox 67, Firefox ESR 60.7\
546 **CCK2 Equivalent:** N/A\
547 **Preferences Affected:** `network.captive-portal-service.enabled`
551 Software\Policies\Mozilla\Firefox\CaptivePortal = 0x1 | 0x0
553 #### Windows (Intune)
556 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CaptivePortal
560 <enabled/> or <disabled/>
565 <key>CaptivePortal</key>
573 "CaptivePortal": true | false
579 ### Certificates | ImportEnterpriseRoots
581 Trust certificates that have been added to the operating system certificate store by a user or administrator.
583 Note: This policy only works on Windows and macOS. For Linux discussion, see [bug 1600509](https://bugzilla.mozilla.org/show_bug.cgi?id=1600509).
585 See https://support.mozilla.org/kb/setting-certificate-authorities-firefox for more detail.
587 **Compatibility:** Firefox 60, Firefox ESR 60 (macOS support in Firefox 63, Firefox ESR 68)\
588 **CCK2 Equivalent:** N/A\
589 **Preferences Affected:** `security.enterprise_roots.enabled`
593 Software\Policies\Mozilla\Firefox\Certificates\ImportEnterpriseRoots = 0x1 | 0x0
595 #### Windows (Intune)
598 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_ImportEnterpriseRoots
602 <enabled/> or <disabled/>
607 <key>Certificates</key>
609 <key>ImportEnterpriseRoots</key>
619 "ImportEnterpriseRoots": true | false
624 ### Certificates | Install
626 Install certificates into the Firefox certificate store. If only a filename is specified, Firefox searches for the file in the following locations:
629 - %USERPROFILE%\AppData\Local\Mozilla\Certificates
630 - %USERPROFILE%\AppData\Roaming\Mozilla\Certificates
632 - /Library/Application Support/Mozilla/Certificates
633 - ~/Library/Application Support/Mozilla/Certificates
635 - /usr/lib/mozilla/certificates
636 - /usr/lib64/mozilla/certificates
637 - ~/.mozilla/certificates
639 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.
641 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.
643 Certificates are installed using the trust string `CT,CT,`.
645 Binary (DER) and ASCII (PEM) certificates are both supported.
647 **Compatibility:** Firefox 64, Firefox ESR 64\
648 **CCK2 Equivalent:** `certs.ca`\
649 **Preferences Affected:** N/A
653 Software\Policies\Mozilla\Firefox\Certificates\Install\1 = "cert1.der"
654 Software\Policies\Mozilla\Firefox\Certificates\Install\2 = "C:\Users\username\cert2.pem"
656 #### Windows (Intune)
659 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_Install
664 <data id="Certificates_Install" value="1cert1.der2C:\Users\username\cert2.pem"/>
669 <key>Certificates</key>
673 <string>cert1.der</string>
674 <string>/Users/username/cert2.pem</string>
684 "Install": ["cert1.der", "/home/username/cert2.pem"]
690 Configure cookie preferences.
692 `Allow` is a list of origins (not domains) where cookies are always allowed. You must include http or https.
694 `AllowSession` is a list of origins (not domains) where cookies are only allowed for the current session. You must include http or https.
696 `Block` is a list of origins (not domains) where cookies are always blocked. You must include http or https.
698 `Default` determines whether cookies are accepted at all.
700 `AcceptThirdParty` determines how third-party cookies are handled.
702 `ExpireAtSessionEnd` determines when cookies expire.
704 `RejectTracker` only rejects cookies for trackers.
706 `Locked` prevents the user from changing cookie preferences.
708 **Compatibility:** Firefox 60, Firefox ESR 60 (RejectTracker added in Firefox 63, AllowSession added in Firefox 79/78.1)\
709 **CCK2 Equivalent:** N/A\
710 **Preferences Affected:** `network.cookie.cookieBehavior`,`network.cookie.lifetimePolicy`
714 Software\Policies\Mozilla\Firefox\Cookies\Allow\1 = "https://example.com"
715 Software\Policies\Mozilla\Firefox\Cookies\AllowSession\1 = "https://example.edu"
716 Software\Policies\Mozilla\Firefox\Cookies\Block\1 = "https://example.org"
717 Software\Policies\Mozilla\Firefox\Cookies\Default = 0x1 | 0x0
718 Software\Policies\Mozilla\Firefox\Cookies\AcceptThirdParty = "always" | "never" | "from-visited"
719 Software\Policies\Mozilla\Firefox\Cookies\ExpireAtSessionEnd = 0x1 | 0x0
720 Software\Policies\Mozilla\Firefox\Cookies\RejectTracker = 0x1 | 0x0
721 Software\Policies\Mozilla\Firefox\Cookies\Locked = 0x1 | 0x0
723 #### Windows (Intune)
726 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Allow
731 <data id="Cookies_Allow" value="1https://example.com"/>
735 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AllowSession
740 <data id="Cookies_Allow" value="1https://example.edu"/>
744 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Block
749 <data id="Cookies_Block" value="1https://example.org"/>
753 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Default
757 <enabled/> or <disabled/>
761 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AcceptThirdParty
766 <data id="Cookies_AcceptThirdParty" value="always | never | from-visited"/>
770 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_ExpireAtSessionEnd
774 <enabled/> or <disabled/>
778 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_RejectTracker
782 <enabled/> or <disabled/>
786 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Locked
790 <enabled/> or <disabled/>
799 <string>http://example.com</string>
801 <key>AllowSession</key>
803 <string>http://example.edu</string>
807 <string>http://example.org</string>
811 <key>AcceptThirdParty</key>
812 <string>always | never | from-visited</string>
813 <key>ExpireAtSessionEnd</key>
815 <key>RejectTracker</key>
827 "Allow": ["http://example.org/"],
828 "AllowSession": ["http://example.edu/"],
829 "Block": ["http://example.edu/"],
830 "Default": true | false,
831 "AcceptThirdParty": "always" | "never" | "from-visited",
832 "ExpireAtSessionEnd": true | false,
833 "RejectTracker": true | false,
834 "Locked": true | false
839 ### DisableSetDesktopBackground
840 Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
842 **Compatibility:** Firefox 60, Firefox ESR 60\
843 **CCK2 Equivalent:** `removeSetDesktopBackground`\
844 **Preferences Affected:** N/A
848 Software\Policies\Mozilla\Firefox\DisableSetDesktopBackground = 0x1 | 0x0
850 #### Windows (Intune)
853 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSetDesktopBackground
857 <enabled/> or <disabled/>
862 <key>DisableSetDesktopBackground</key>
870 "DisableSetDesktopBackground": true | false
874 ### DisableMasterPasswordCreation
875 Remove the master password functionality.
877 If this value is true, it works the same as setting [`PrimaryPassword`](#primarypassword) to false and removes the primary password functionality.
879 If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.
881 **Compatibility:** Firefox 60, Firefox ESR 60\
882 **CCK2 Equivalent:** `noMasterPassword`\
883 **Preferences Affected:** N/A
887 Software\Policies\Mozilla\Firefox\DisableMasterPasswordCreation = 0x1 | 0x0
889 #### Windows (Intune)
892 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableMasterPasswordCreation
896 <enabled/> or <disabled/>
901 <key>DisableMasterPasswordCreation</key>
909 "DisableMasterPasswordCreation": true | false
914 Turn off application updates within Firefox.
916 **Compatibility:** Firefox 60, Firefox ESR 60\
917 **CCK2 Equivalent:** `disableFirefoxUpdates`\
918 **Preferences Affected:** N/A
922 Software\Policies\Mozilla\Firefox\DisableAppUpdate = 0x1 | 0x0
924 #### Windows (Intune)
927 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableAppUpdate
931 <enabled/> or <disabled/>
936 <key>DisableAppUpdate</key>
944 "DisableAppUpdate": true | false
948 ### DisableBuiltinPDFViewer
949 Disable the built in PDF viewer. PDF files are downloaded and sent externally.
951 **Compatibility:** Firefox 60, Firefox ESR 60\
952 **CCK2 Equivalent:** `disablePDFjs`\
953 **Preferences Affected:** `pdfjs.disabled`
957 Software\Policies\Mozilla\Firefox\DisableBuiltinPDFViewer = 0x1 | 0x0
959 #### Windows (Intune)
962 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableBuiltinPDFViewer
966 <enabled/> or <disabled/>
971 <key>DisableBuiltinPDFViewer</key>
979 "DisableBuiltinPDFViewer": true | false
984 Disable specific cryptographic ciphers.
989 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.
992 **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)\
993 **CCK2 Equivalent:** N/A\
994 **Preferences Affected:** N/A
998 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
999 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
1000 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
1001 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
1002 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
1003 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
1004 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_128_CBC_SHA = 0x1 | 0x0
1005 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_256_CBC_SHA = 0x1 | 0x0
1006 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_3DES_EDE_CBC_SHA = 0x1 | 0x0
1007 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_128_GCM_SHA256 = 0x1 | 0x0
1008 Software\Policies\Mozilla\Firefox\DisabledCiphers\TLS_RSA_WITH_AES_256_GCM_SHA384 = 0x1 | 0x0
1010 #### Windows (Intune)
1013 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
1014 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
1015 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
1016 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
1017 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
1018 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
1019 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_128_CBC_SHA
1020 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_256_CBC_SHA
1021 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_3DES_EDE_CBC_SHA
1022 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_128_GCM_SHA256
1023 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_TLS_RSA_WITH_AES_256_GCM_SHA384
1027 <enabled/> or <disabled/>
1032 <key>DisabledCiphers</key>
1034 <key>TLS_DHE_RSA_WITH_AES_128_CBC_SHA</key>
1036 <key>TLS_DHE_RSA_WITH_AES_256_CBC_SHA</key>
1038 <key>TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA</key>
1040 <key>TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA</key>
1042 <key>TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256</key>
1044 <key>TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256</key>
1046 <key>TLS_RSA_WITH_AES_128_CBC_SHA</key>
1048 <key>TLS_RSA_WITH_AES_256_CBC_SHA</key>
1050 <key>TLS_RSA_WITH_3DES_EDE_CBC_SHA</key>
1052 <key>TLS_RSA_WITH_AES_128_GCM_SHA256</key>
1054 <key>TLS_RSA_WITH_AES_256_GCM_SHA384</key>
1063 "DisabledCiphers": {
1064 "TLS_DHE_RSA_WITH_AES_128_CBC_SHA": true | false,
1065 "TLS_DHE_RSA_WITH_AES_256_CBC_SHA": true | false,
1066 "TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA": true | false,
1067 "TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA": true | false,
1068 "TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256": true | false,
1069 "TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256": true | false,
1070 "TLS_RSA_WITH_AES_128_CBC_SHA": true | false,
1071 "TLS_RSA_WITH_AES_256_CBC_SHA": true | false,
1072 "TLS_RSA_WITH_3DES_EDE_CBC_SHA": true | false,
1073 "TLS_RSA_WITH_AES_128_GCM_SHA256": true | false,
1074 "TLS_RSA_WITH_AES_256_GCM_SHA384": true | false
1079 ### DisableDefaultBrowserAgent
1080 Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.
1082 The browser agent is a Windows-only scheduled task which runs in the background to collect and submit data about the browser that the user has set as their OS default. More information is available [here](https://firefox-source-docs.mozilla.org/toolkit/mozapps/defaultagent/default-browser-agent/index.html).
1084 **Compatibility:** Firefox 75, Firefox ESR 68.7 (Windows only)\
1085 **CCK2 Equivalent:** N/A\
1086 **Preferences Affected:** N/A
1090 Software\Policies\Mozilla\Firefox\DisableDefaultBrowserAgent = 0x1 | 0x0
1092 #### Windows (Intune)
1095 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDefaultBrowserAgent
1099 <enabled/> or <disabled/>
1105 "DisableDefaultBrowserAgent": true | false
1109 ### DisableDeveloperTools
1110 Remove access to all developer tools.
1112 **Compatibility:** Firefox 60, Firefox ESR 60\
1113 **CCK2 Equivalent:** `removeDeveloperTools`\
1114 **Preferences Affected:** `devtools.policy.disabled`
1118 Software\Policies\Mozilla\Firefox\DisableDeveloperTools = 0x1 | 0x0`
1120 #### Windows (Intune)
1123 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDeveloperTools
1127 <enabled/> or <disabled/>
1132 <key>DisableDeveloperTools</key>
1140 "DisableDeveloperTools": true | false
1144 ### DisableFeedbackCommands
1145 Disable the menus for reporting sites (Submit Feedback, Report Deceptive Site).
1147 **Compatibility:** Firefox 60, Firefox ESR 60\
1148 **CCK2 Equivalent:** N/A\
1149 **Preferences Affected:** N/A
1153 Software\Policies\Mozilla\Firefox\DisableFeedbackCommands = 0x1 | 0x0
1155 #### Windows (Intune)
1158 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFeedbackCommands
1162 <enabled/> or <disabled/>
1167 <key>DisableFeedbackCommands</key>
1175 "DisableFeedbackCommands": true | false
1179 ### DisableFirefoxScreenshots
1180 Remove access to Firefox Screenshots.
1182 **Compatibility:** Firefox 60, Firefox ESR 60\
1183 **CCK2 Equivalent:** N/A\
1184 **Preferences Affected:** `extensions.screenshots.disabled`
1188 Software\Policies\Mozilla\Firefox\DisableFirefoxScreenshots = 0x1 | 0x0
1190 #### Windows (Intune)
1193 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxScreenshots
1197 <enabled/> or <disabled/>
1202 <key>DisableFirefoxScreenshots</key>
1210 "DisableFirefoxScreenshots": true | false
1214 ### DisableFirefoxAccounts
1215 Disable Firefox Accounts integration (Sync).
1217 **Compatibility:** Firefox 60, Firefox ESR 60\
1218 **CCK2 Equivalent:** `disableSync`\
1219 **Preferences Affected:** `identity.fxaccounts.enabled`
1223 Software\Policies\Mozilla\Firefox\DisableFirefoxAccounts = 0x1 | 0x0
1225 #### Windows (Intune)
1228 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxAccounts
1232 <enabled/> or <disabled/>
1237 <key>DisableFirefoxAccounts</key>
1245 "DisableFirefoxAccounts": true | false
1249 ### DisableFirefoxStudies
1250 Disable Firefox studies (Shield).
1252 **Compatibility:** Firefox 60, Firefox ESR 60\
1253 **CCK2 Equivalent:** N/A\
1254 **Preferences Affected:** N/A
1258 Software\Policies\Mozilla\Firefox\DisableFirefoxStudies = 0x1 | 0x0
1260 #### Windows (Intune)
1263 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxStudies
1267 <enabled/> or <disabled/>
1272 <key>DisableFirefoxStudies</key>
1280 "DisableFirefoxStudies": true | false
1284 ### DisableForgetButton
1285 Disable the "Forget" button.
1287 **Compatibility:** Firefox 60, Firefox ESR 60\
1288 **CCK2 Equivalent:** `disableForget`\
1289 **Preferences Affected:** N/A
1293 Software\Policies\Mozilla\Firefox\DisableForgetButton = 0x1 | 0x0
1295 #### Windows (Intune)
1298 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableForgetButton
1302 <enabled/> or <disabled/>
1307 <key>DisableForgetButton</key>
1315 "DisableForgetButton": true | false
1319 ### DisableFormHistory
1320 Turn off saving information on web forms and the search bar.
1322 **Compatibility:** Firefox 60, Firefox ESR 60\
1323 **CCK2 Equivalent:** `disableFormFill`\
1324 **Preferences Affected:** ` browser.formfill.enable`
1328 Software\Policies\Mozilla\Firefox\DisableFormHistory = 0x1 | 0x0
1330 #### Windows (Intune)
1333 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFormHistory
1337 <enabled/> or <disabled/>
1342 <key>DisableFormHistory</key>
1350 "DisableFormHistory": true | false
1354 ### DisablePasswordReveal
1355 Do not allow passwords to be shown in saved logins
1357 **Compatibility:** Firefox 71, Firefox ESR 68.3\
1358 **CCK2 Equivalent:** N/A
1359 **Preferences Affected:** N/A
1363 Software\Policies\Mozilla\Firefox\DisablePasswordReveal = 0x1 | 0x0
1365 #### Windows (Intune)
1368 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePasswordReveal
1372 <enabled/> or <disabled/>
1377 <key>DisablePasswordReveal</key>
1385 "DisablePasswordReveal": true | false
1390 Remove Pocket in the Firefox UI. It does not remove it from the new tab page.
1392 **Compatibility:** Firefox 60, Firefox ESR 60\
1393 **CCK2 Equivalent:** `disablePocket`\
1394 **Preferences Affected:** `extensions.pocket.enabled`
1398 Software\Policies\Mozilla\Firefox\DisablePocket = 0x1 | 0x0
1400 #### Windows (Intune)
1403 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePocket
1407 <enabled/> or <disabled/>
1412 <key>DisablePocket</key>
1420 "DisablePocket": true | false
1424 ### DisablePrivateBrowsing
1425 Remove access to private browsing.
1427 **Compatibility:** Firefox 60, Firefox ESR 60\
1428 **CCK2 Equivalent:** `disablePrivateBrowsing`\
1429 **Preferences Affected:** N/A
1433 Software\Policies\Mozilla\Firefox\DisablePrivateBrowsing = 0x1 | 0x0
1435 #### Windows (Intune)
1438 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePrivateBrowsing
1442 <enabled/> or <disabled/>
1447 <key>DisablePrivateBrowsing</key>
1455 "DisablePrivateBrowsing": true | false
1459 ### DisableProfileImport
1460 Disables the "Import data from another browser" option in the bookmarks window.
1462 **Compatibility:** Firefox 60, Firefox ESR 60\
1463 **CCK2 Equivalent:** N/A\
1464 **Preferences Affected:** N/A
1468 Software\Policies\Mozilla\Firefox\DisableProfileImport = 0x1 | 0x0
1470 #### Windows (Intune)
1473 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileImport
1477 <enabled/> or <disabled/>
1482 <key>DisableProfileImport</key>
1490 "DisableProfileImport": true | false
1494 ### DisableProfileRefresh
1495 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.
1497 **Compatibility:** Firefox 60, Firefox ESR 60\
1498 **CCK2 Equivalent:** `disableResetFirefox`\
1499 **Preferences Affected:** `browser.disableResetPrompt`
1503 Software\Policies\Mozilla\Firefox\DisableProfileRefresh = 0x1 | 0x0
1505 #### Windows (Intune)
1508 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileRefresh
1512 <enabled/> or <disabled/>
1517 <key>DisableProfileRefresh</key>
1525 "DisableProfileRefresh": true | false
1530 Disable safe mode within the browser.
1532 On Windows, this disables safe mode via the command line as well.
1534 **Compatibility:** Firefox 60, Firefox ESR 60 (Windows, macOS)\
1535 **CCK2 Equivalent:** `disableSafeMode`\
1536 **Preferences Affected:** N/A
1540 Software\Policies\Mozilla\Firefox\DisableSafeMode = 0x1 | 0x0
1542 #### Windows (Intune)
1545 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSafeMode
1549 <enabled/> or <disabled/>
1554 <key>DisableSafeMode</key>
1562 "DisableSafeMode": true | false
1566 ### DisableSecurityBypass
1567 Prevent the user from bypassing security in certain cases.
1569 `InvalidCertificate` prevents adding an exception when an invalid certificate is shown.
1571 `SafeBrowsing` prevents selecting "ignore the risk" and visiting a harmful site anyway.
1573 **Compatibility:** Firefox 60, Firefox ESR 60\
1574 **CCK2 Equivalent:** N/A\
1575 **Preferences Affected:** `security.certerror.hideAddException`,`browser.safebrowsing.allowOverride`
1579 Software\Policies\Mozilla\Firefox\DisableSecurityBypass\InvalidCertificate = 0x1 | 0x0
1580 Software\Policies\Mozilla\Firefox\DisableSecurityBypass\SafeBrowsing = 0x1 | 0x0
1582 #### Windows (Intune)
1585 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_InvalidCertificate
1589 <enabled/> or <disabled/>
1593 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_SafeBrowsing
1597 <enabled/> or <disabled/>
1603 <key>DisableSecurityBypass</key>
1605 <key>InvalidCertificate</key>
1607 <key>SafeBrowsing</key>
1616 "DisableSecurityBypass": {
1617 "InvalidCertificate": true | false,
1618 "SafeBrowsing": true | false
1623 ### DisableSystemAddonUpdate
1624 Prevent system add-ons from being installed or update.
1626 **Compatibility:** Firefox 60, Firefox ESR 60\
1627 **CCK2 Equivalent:** N/A\
1628 **Preferences Affected:** N/A
1632 Software\Policies\Mozilla\Firefox\DisableSystemAddonUpdate = 0x1 | 0x0
1634 #### Windows (Intune)
1637 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSystemAddonUpdate
1641 <enabled/> or <disabled/>
1646 <key>DisableSystemAddonUpdate</key>
1654 "DisableSystemAddonUpdate": true | false
1658 ### DisableTelemetry
1659 Prevent the upload of telemetry data.
1661 As of Firefox 83 and Firefox ESR 78.5, local storage of telemetry data is disabled as well.
1663 Mozilla recommends that you do not disable telemetry. Information collected through telemetry helps us build a better product for businesses like yours.
1665 **Compatibility:** Firefox 60, Firefox ESR 60\
1666 **CCK2 Equivalent:** `disableTelemetry`\
1667 **Preferences Affected:** `datareporting.healthreport.uploadEnabled,datareporting.policy.dataSubmissionEnabled,toolkit.telemetry.archive.enabled`
1671 Software\Policies\Mozilla\Firefox\DisableTelemetry = 0x1 | 0x0
1673 #### Windows (Intune)
1676 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableTelemetry
1680 <enabled/> or <disabled/>
1685 <key>DisableTelemetry</key>
1693 "DisableTelemetry": true | false
1697 ### DisplayBookmarksToolbar
1698 Set the initial state of the bookmarks toolbar. A user can still hide it and it will stay hidden.
1700 **Compatibility:** Firefox 60, Firefox ESR 60\
1701 **CCK2 Equivalent:** `displayBookmarksToolbar`\
1702 **Preferences Affected:** N/A
1706 Software\Policies\Mozilla\Firefox\DisplayBookmarksToolbar = 0x1 | 0x0
1708 #### Windows (Intune)
1711 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayBookmarksToolbar
1715 <enabled/> or <disabled/>
1720 <key>DisplayBookmarksToolbar</key>
1728 "DisplayBookmarksToolbar": true | false
1732 ### DisplayMenuBar (Deprecated)
1733 Set the initial state of the menubar. A user can still hide it and it will stay hidden.
1735 **Compatibility:** Firefox 60, Firefox ESR 60 (Windows, some Linux)\
1736 **CCK2 Equivalent:** `displayMenuBar`\
1737 **Preferences Affected:** N/A
1741 Software\Policies\Mozilla\Firefox\DisplayMenuBar = 0x1 | 0x0
1746 <key>DisplayMenuBar</key>
1754 "DisplayMenuBar": true | false
1759 Set the state of the menubar.
1761 `always` means the menubar is shown and cannot be hidden.
1763 `never` means the menubar is hidden and cannot be shown.
1765 `default-on` means the menubar is on by default but can be hidden.
1767 `default-off` means the menubar is off by default but can be shown.
1769 **Compatibility:** Firefox 73, Firefox ESR 68.5 (Windows, some Linux)\
1770 **CCK2 Equivalent:** `displayMenuBar`\
1771 **Preferences Affected:** N/A
1775 Software\Policies\Mozilla\Firefox\DisplayMenuBar = "always", "never", "default-on", "default-off"
1777 #### Windows (Intune)
1780 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayMenuBar_Enum
1785 <data id="DisplayMenuBar" value="always | never | default-on | default-off"/>
1790 <key>DisplayMenuBar</key>
1791 <string>always | never | default-on | default-off</string>
1798 "DisplayMenuBar": "always", "never", "default-on", "default-off"
1803 Configure DNS over HTTPS.
1805 `Enabled` determines whether DNS over HTTPS is enabled
1807 `ProviderURL` is a URL to another provider.
1809 `Locked` prevents the user from changing DNS over HTTPS preferences.
1811 `ExcludedDomains` excludes domains from DNS over HTTPS.
1813 **Compatibility:** Firefox 63, Firefox ESR 68 (ExcludedDomains added in 75/68.7)\
1814 **CCK2 Equivalent:** N/A\
1815 **Preferences Affected:** `network.trr.mode`,`network.trr.uri`
1819 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Enabled = 0x1 | 0x0
1820 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
1821 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Locked = 0x1 | 0x0
1822 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ExcludedDomains\1 = "example.com"
1824 #### Windows (Intune)
1827 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Enabled
1831 <enabled/> or <disabled/>
1835 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ProviderURL
1840 <data id="String" value="URL_TO_ALTERNATE_PROVIDER"/>
1844 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Locked
1848 <enabled/> or <disabled/>
1852 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ExcludedDomains
1857 <data id="List" value="1example.com"/>
1862 <key>DNSOverHTTPS</key>
1866 <key>ProviderURL</key>
1867 <string>URL_TO_ALTERNATE_PROVIDER</string>
1870 <key>ExcludedDomains</key>
1872 <string>example.com</string>
1882 "Enabled": true | false,
1883 "ProviderURL": "URL_TO_ALTERNATE_PROVIDER",
1884 "Locked": true | false,
1885 "ExcludedDomains": ["example.com"]
1890 ### DontCheckDefaultBrowser
1891 Don't check if Firefox is the default browser at startup.
1893 **Compatibility:** Firefox 60, Firefox ESR 60\
1894 **CCK2 Equivalent:** `dontCheckDefaultBrowser`\
1895 **Preferences Affected:** `browser.shell.checkDefaultBrowser`
1899 Software\Policies\Mozilla\Firefox\DontCheckDefaultBrowser = 0x1 | 0x0
1901 #### Windows (Intune)
1904 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DontCheckDefaultBrowser
1908 <enabled/> or <disabled/>
1913 <key>DontCheckDefaultBrowser</key>
1921 "DontCheckDefaultBrowser": true | false
1925 ### DefaultDownloadDirectory
1926 Set the default download directory.
1928 You can use ${home} for the native home directory.
1930 **Compatibility:** Firefox 68, Firefox ESR 68\
1931 **CCK2 Equivalent:** N/A\
1932 **Preferences Affected:** `browser.download.dir`,`browser.download.folderList`
1936 Software\Policies\Mozilla\Firefox\DefaultDownloadDirectory = "${home}\Downloads"
1938 #### Windows (Intune)
1941 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DefaultDownloadDirectory
1946 <data id="Preferences_String" value="${home}\Downloads"/>
1951 <key>DefaultDownloadDirectory</key>
1952 <string>${home}/Downloads</string>
1955 #### policies.json (macOS and Linux)
1959 "DefaultDownloadDirectory": "${home}/Downloads"
1962 #### policies.json (Windows)
1966 "DefaultDownloadDirectory": "${home}\\Downloads"
1969 ### DownloadDirectory
1970 Set and lock the download directory.
1972 You can use ${home} for the native home directory.
1974 **Compatibility:** Firefox 68, Firefox ESR 68\
1975 **CCK2 Equivalent:** N/A\
1976 **Preferences Affected:** `browser.download.dir`,`browser.download.folderList`,`browser.download.useDownloadDir`
1980 Software\Policies\Mozilla\Firefox\DownloadDirectory = "${home}\Downloads"
1982 #### Windows (Intune)
1985 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DownloadDirectory
1990 <data id="Preferences_String" value="${home}\Downloads"/>
1995 <key>DownloadDirectory</key>
1996 <string>${home}/Downloads</string>
1999 #### policies.json (macOS and Linux)
2003 "DownloadDirectory": "${home}/Downloads"
2006 #### policies.json (Windows)
2010 "DownloadDirectory": "${home}\\Downloads"
2013 ### EnableTrackingProtection
2014 Configure tracking protection.
2016 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.
2018 If `Value` is set to false, tracking protection is disabled and locked in both the regular browser and private browsing.
2020 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.
2022 If `Cryptomining` is set to true, cryptomining scripts on websites are blocked.
2024 If `Fingerprinting` is set to true, fingerprinting scripts on websites are blocked.
2026 `Exceptions` are origins for which tracking protection is not enabled.
2028 **Compatibility:** Firefox 60, Firefox ESR 60 (Cryptomining and Fingerprinting added in 70/68.2, Exceptions added in 73/68.5)\
2029 **CCK2 Equivalent:** N/A\
2030 **Preferences Affected:** `privacy.trackingprotection.enabled`,`privacy.trackingprotection.pbmode.enabled`,`privacy.trackingprotection.cryptomining.enabled`,`privacy.trackingprotection.fingerprinting.enabled`
2034 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Value = 0x1 | 0x0
2035 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Locked = 0x1 | 0x0
2036 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Cryptomining = 0x1 | 0x0
2037 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Fingerprinting = 0x1 | 0x0
2038 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Exceptions\1 = "https://example.com"
2040 #### Windows (Intune)
2043 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/A_TrackingProtection_Value
2047 <enabled/> or <disabled/>
2051 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/B_TrackingProtection_Cryptomining
2055 <enabled/> or <disabled/>
2059 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/C_TrackingProtection_Fingerprinting
2063 <enabled/> or <disabled/>
2067 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/D_TrackingProtection_Exceptions
2071 <data id="TrackingProtection_Exceptions" value="1https://example.com"/>
2075 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/E_TrackingProtection_Locked
2079 <enabled/> or <disabled/>
2084 <key>EnableTrackingProtection</key>
2090 <key>Cryptomining</key>
2092 <key>Fingerprinting</key>
2094 <key>Exceptions</key>
2096 <string>https://example.com</string>
2105 "EnableTrackingProtection": {
2106 "Value": true | false,
2107 "Locked": true | false,
2108 "Cryptomining": true | false,
2109 "Fingerprinting": true | false,
2110 "Exceptions": ["https://example.com"]
2114 ### EncryptedMediaExtensions
2115 Enable or disable Encrypted Media Extensions and optionally lock it.
2117 If `Enabled` is set to false, encrypted media extensions (like Widevine) are not downloaded by Firefox unless the user consents to installing them.
2119 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.
2121 **Compatibility:** Firefox 77, Firefox ESR 68.9\
2122 **CCK2 Equivalent:** N/A\
2123 **Preferences Affected:** `media.eme.enabled`
2127 Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Enabled = 0x1 | 0x0
2128 Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Locked = 0x1 | 0x0
2130 #### Windows (Intune)
2133 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Enabled
2134 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Locked
2138 <enabled/>or <disabled/>
2143 <key>EncryptedMediaExtensions</key>
2156 "EncryptedMediaExtensions": {
2157 "Enabled": true | false,
2158 "Locked": true | false
2162 ### EnterprisePoliciesEnabled
2163 Enable policy support on macOS.
2165 **Compatibility:** Firefox 63, Firefox ESR 60.3 (macOS only)\
2166 **CCK2 Equivalent:** N/A\
2167 **Preferences Affected:** N/A
2172 <key>EnterprisePoliciesEnabled</key>
2177 Control the installation, uninstallation and locking of extensions.
2179 While this policy is not technically deprecated, it is recommended that you use the **[`ExtensionSettings`](#extensionsettings)** policy. It has the same functionality and adds more. It does not support native paths, though, so you'll have to use file:/// URLs.
2181 `Install` is a list of URLs or native paths for extensions to be installed.
2183 `Uninstall` is a list of extension IDs that should be uninstalled if found.
2185 `Locked` is a list of extension IDs that the user cannot disable or uninstall.
2187 **Compatibility:** Firefox 60, Firefox ESR 60\
2188 **CCK2 Equivalent:** `addons`\
2189 **Preferences Affected:** N/A
2193 Software\Policies\Mozilla\Firefox\Extensions\Install\1 = "https://addons.mozilla.org/firefox/downloads/somefile.xpi"
2194 Software\Policies\Mozilla\Firefox\Extensions\Install\2 = "//path/to/xpi"
2195 Software\Policies\Mozilla\Firefox\Extensions\Uninstall\1 = "bad_addon_id@mozilla.org"
2196 Software\Policies\Mozilla\Firefox\Extensions\Locked\1 = "addon_id@mozilla.org"
2198 #### Windows (Intune)
2201 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Install
2206 <data id="Extensions" value="1https://addons.mozilla.org/firefox/downloads/somefile.xpi2//path/to/xpi"/>
2210 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Uninstall
2215 <data id="Extensions" value="1bad_addon_id@mozilla.org"/>
2219 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Locked
2224 <data id="Extensions" value="1addon_id@mozilla.org"/>
2229 <key>Extensions</key>
2233 <string>https://addons.mozilla.org/firefox/downloads/somefile.xpi</string>
2234 <string>//path/to/xpi</string>
2236 <key>Uninstall</key>
2238 <string>bad_addon_id@mozilla.org</string>
2242 <string>addon_id@mozilla.org</string>
2252 "Install": ["https://addons.mozilla.org/firefox/downloads/somefile.xpi", "//path/to/xpi"],
2253 "Uninstall": ["bad_addon_id@mozilla.org"],
2254 "Locked": ["addon_id@mozilla.org"]
2259 ### ExtensionSettings
2260 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.
2262 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.
2264 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).
2266 The configuration for each extension is another dictionary that can contain the fields documented below.
2268 | Name | Description |
2270 | `installation_mode` | Maps to a string indicating the installation mode for the extension. The valid strings are `allowed`,`blocked`,`force_installed`, and `normal_installed`.
2271 | `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.
2272 | `blocked`| Blocks installation of the extension and removes it from the device if already installed.
2273 | `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.
2274 | `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.
2275 | `install_url`| Maps to a URL indicating where Firefox can download a force_installed or normal_installed extension. If installing from the local file system, use a [```file:///``` URL](https://en.wikipedia.org/wiki/File_URI_scheme). 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. 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.
2276 | `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.
2277 | `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.
2278 | `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.
2279 | `restricted_domains` | An array of domains on which content scripts can't be run. This setting can be used only for the default configuration.
2281 **Compatibility:** Firefox 69, Firefox ESR 68.1 (As of Firefox 85, Firefox ESR 78.7, installing a theme makes it the default.)\
2282 **CCK2 Equivalent:** N/A\
2283 **Preferences Affected:** N/A
2286 Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =
2290 "blocked_install_message": "Custom error message.",
2291 "install_sources": ["about:addons","https://addons.mozilla.org/"],
2292 "installation_mode": "blocked",
2293 "allowed_types": ["extension"]
2295 "uBlock0@raymondhill.net": {
2296 "installation_mode": "force_installed",
2297 "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2299 "https-everywhere@eff.org": {
2300 "installation_mode": "allowed"
2304 #### Windows (Intune)
2307 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings
2312 <data id="ExtensionSettings" value='
2315 "blocked_install_message": "Custom error message.",
2316 "install_sources": ["about:addons","https://addons.mozilla.org/"],
2317 "installation_mode": "blocked",
2318 "allowed_types": ["extension"]
2320 "uBlock0@raymondhill.net": {
2321 "installation_mode": "force_installed",
2322 "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2324 "https-everywhere@eff.org": {
2325 "installation_mode": "allowed"
2332 <key>ExtensionSettings</key>
2336 <key>blocked_install_message</key>
2337 <string>Custom error message.</string>
2338 <key>install_sources</key>
2340 <string>about:addons</string>
2341 <string>https://addons.mozilla.org/</string>
2343 <key>installation_mode</key>
2344 <string>blocked</string>
2345 <key>allowed_types</key>
2347 <string>extension</string>
2350 <key>uBlock0@raymondhill.net</key>
2352 <key>installation_mode</key>
2353 <string>force_installed</string>
2354 <key>install_url</key>
2355 <string>https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi</string>
2357 <key>https-everywhere@eff.org</key>
2359 <key>installation_mode</key>
2360 <string>allowed</string>
2369 "ExtensionSettings": {
2371 "blocked_install_message": "Custom error message.",
2372 "install_sources": ["about:addons","https://addons.mozilla.org/"],
2373 "installation_mode": "blocked",
2374 "allowed_types": ["extension"]
2376 "uBlock0@raymondhill.net": {
2377 "installation_mode": "force_installed",
2378 "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2380 "https-everywhere@eff.org": {
2381 "installation_mode": "allowed"
2388 Control extension updates.
2390 **Compatibility:** Firefox 67, Firefox ESR 60.7\
2391 **CCK2 Equivalent:** N/A\
2392 **Preferences Affected:** `extensions.update.enabled`
2396 Software\Policies\Mozilla\Firefox\ExtensionUpdate = 0x1 | 0x0
2398 #### Windows (Intune)
2401 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionUpdate
2405 <enabled/> or <disabled/>
2410 <key>ExtensionUpdate</key>
2418 "ExtensionUpdate": true | false
2423 Configure the default Flash plugin policy as well as origins for which Flash is allowed.
2425 `Allow` is a list of origins where Flash are allowed.
2427 `Block` is a list of origins where Flash is not allowed.
2429 `Default` determines whether or not Flash is allowed by default.
2431 `Locked` prevents the user from changing Flash preferences.
2433 **Compatibility:** Firefox 60, Firefox ESR 60\
2434 **CCK2 Equivalent:** `permissions.plugin`\
2435 **Preferences Affected:** `plugin.state.flash`
2439 Software\Policies\Mozilla\Firefox\FlashPlugin\Allow\1 = "https://example.org"
2440 Software\Policies\Mozilla\Firefox\FlashPlugin\Block\1 = "https://example.edu"
2441 Software\Policies\Mozilla\Firefox\FlashPlugin\Default = 0x1 | 0x0
2442 Software\Policies\Mozilla\Firefox\FlashPlugin\Locked = 0x1 | 0x0
2444 #### Windows (Intune)
2447 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Allow
2452 <data id="Permissions" value="1https://example.org2https://example.edu"/>
2456 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Locked
2460 <enabled/> or <disabled/>
2464 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Default
2468 <enabled/> or <disabled/>
2473 <key>FlashPlugin</key>
2477 <string>http://example.org</string>
2481 <string>http://example.edu</string>
2495 "Allow": ["http://example.org/"],
2496 "Block": ["http://example.edu/"],
2497 "Default": true | false,
2498 "Locked": true | false
2507 Configure default application handlers. This policy is based on the internal format of `handlers.json`.
2509 You can configure handlers based on a mime type (`mimeTypes`), a file's extension (`extensions`), or a protocol (`schemes`).
2511 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.
2513 | Name | Description |
2515 | `action`| Can be either `saveToDisk`, `useHelperApp`, `useSystemDefault`.
2516 | `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.
2517 | `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.
2518 | `name` | The display name of the handler (might not be used).
2519 | `path`| The native path to the executable to be used.
2520 | `uriTemplate`| A url to a web based application handler. The URL must be https and contain a %s to be used for substitution.
2522 **Compatibility:** Firefox 78, Firefox ESR 78\
2523 **CCK2 Equivalent:** N/A\
2524 **Preferences Affected:** N/A
2527 Software\Policies\Mozilla\Firefox\Handlers (REG_MULTI_SZ) =
2531 "application/msword": {
2532 "action": "useSystemDefault",
2538 "action": "useHelperApp",
2539 "ask": true | false,
2542 "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
2548 "action": "useHelperApp",
2549 "ask": true | false,
2551 "name": "Adobe Acrobat",
2552 "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
2558 #### Windows (Intune)
2561 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Handlers
2566 <data id="Handlers" value='
2569 "application/msword": {
2570 "action": "useSystemDefault",
2576 "action": "useHelperApp",
2577 "ask": true | false,
2580 "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
2586 "action": "useHelperApp",
2587 "ask": true | false,
2589 "name": "Adobe Acrobat",
2590 "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
2602 <key>mimeTypes</key>
2604 <key>application/msword</key>
2607 <string>useSystemDefault</string>
2617 <string>useHelperApp</string>
2624 <string>Gmail</string>
2625 <key>uriTemplate</key>
2626 <string>https://mail.google.com/mail/?extsrc=mailto&url=%s</string>
2631 <key>extensions</key>
2636 <string>useHelperApp</string>
2643 <string>Adobe Acrobat</string>
2645 <string>/System/Applications/Preview.app</string>
2659 "application/msword": {
2660 "action": "useSystemDefault",
2666 "action": "useHelperApp",
2667 "ask": true | false,
2670 "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
2676 "action": "useHelperApp",
2677 "ask": true | false,
2679 "name": "Adobe Acrobat",
2680 "path": "/usr/bin/acroread"
2689 Customize the Firefox Home page.
2691 **Compatibility:** Firefox 68, Firefox ESR 68\
2692 **CCK2 Equivalent:** N/A\
2693 **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`
2697 Software\Policies\Mozilla\Firefox\FirefoxHome\Search = 0x1 | 0x0
2698 Software\Policies\Mozilla\Firefox\FirefoxHome\TopSites = 0x1 | 0x0
2699 Software\Policies\Mozilla\Firefox\FirefoxHome\Highlights = 0x1 | 0x0
2700 Software\Policies\Mozilla\Firefox\FirefoxHome\Pocket = 0x1 | 0x0
2701 Software\Policies\Mozilla\Firefox\FirefoxHome\Snippets = 0x1 | 0x0
2702 Software\Policies\Mozilla\Firefox\FirefoxHome\Locked = 0x1 | 0x0
2704 #### Windows (Intune)
2707 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CustomizeFirefoxHome
2712 <data id="FirefoxHome_Search" value="true | false"/>
2713 <data id="FirefoxHome_TopSites" value="true | false"/>
2714 <data id="FirefoxHome_Highlights" value="true | false"/>
2715 <data id="FirefoxHome_Pocket" value="true | false"/>
2716 <data id="FirefoxHome_Snippets" value="true | false"/>
2717 <data id="FirefoxHome_Locked" value="true | false"/>
2722 <key>FirefoxHome</key>
2728 <key>Highlights</key>
2744 "Search": true | false,
2745 "TopSites": true | false,
2746 "Highlights": true | false,
2747 "Pocket": true | false,
2748 "Snippets": true | false,
2749 "Locked": true | false
2754 ### HardwareAcceleration
2755 Control hardware acceleration.
2757 **Compatibility:** Firefox 60, Firefox ESR 60\
2758 **CCK2 Equivalent:** N/A\
2759 **Preferences Affected:** `layers.acceleration.disabled`
2763 Software\Policies\Mozilla\Firefox\HardwareAcceleration = 0x1 | 0x0
2765 #### Windows (Intune)
2768 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HardwareAcceleration
2772 <enabled/> or <disabled/>
2777 <key>HardwareAcceleration</key>
2785 "HardwareAcceleration": true | false
2790 Configure the default homepage and how Firefox starts.
2792 `URL` is the default homepage.
2794 `Locked` prevents the user from changing homepage preferences.
2796 `Additional` allows for more than one homepage.
2798 `StartPage` is how Firefox starts. The choices are no homepage, the default homepage or the previous session.
2800 With Firefox 78, an additional option as added for `Startpage`, `homepage-locked`. If this is value is set for the Startpage, the user will always get the homepage at startup and cannot choose to restore their session.
2802 **Compatibility:** Firefox 60, Firefox ESR 60 (StartPage was added in Firefox 60, Firefox ESR 60.4, homepage-locked added in Firefox 78)\
2803 **CCK2 Equivalent:** `homePage`,`lockHomePage`\
2804 **Preferences Affected:** `browser.startup.homepage`,`browser.startup.page`
2808 Software\Policies\Mozilla\Firefox\Homepage\URL = "https://example.com"
2809 Software\Policies\Mozilla\Firefox\Homepage\Locked = 0x1 | 0x0
2810 Software\Policies\Mozilla\Firefox\Homepage\Additional\1 = "https://example.org"
2811 Software\Policies\Mozilla\Firefox\Homepage\Additional\2 = "https://example.edu"
2812 Software\Policies\Mozilla\Firefox\Homepage\StartPage = "none" | "homepage" | "previous-session" | "homepage-locked"
2814 #### Windows (Intune)
2817 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageURL
2823 <data id="HomepageURL" value="https://example.com"/>
2824 <data id="HomepageLocked" value="true | false"/>
2828 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageAdditional
2834 <data id="HomepageAdditional" value="1http://example.org2http://example.edu"/>
2838 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageStartPage
2844 <data id="StartPage" value="none | homepage | previous-session"/>
2852 <string>http://example.com</string>
2855 <key>Additional</key>
2857 <string>http://example.org</string>
2858 <string>http://example.edu</string>
2860 <key>StartPage</key>
2861 <string>none | homepage | previous-session | homepage-locked</string>
2870 "URL": "http://example.com/",
2871 "Locked": true | false,
2872 "Additional": ["http://example.org/",
2873 "http://example.edu/"],
2874 "StartPage": "none" | "homepage" | "previous-session" | "homepage-locked"
2879 ### InstallAddonsPermission
2880 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.
2882 `Allow` is a list of origins where extension installs are allowed.
2884 `Default` determines whether or not extension installs are allowed by default.
2886 **Compatibility:** Firefox 60, Firefox ESR 60\
2887 **CCK2 Equivalent:** `permissions.install`\
2888 **Preferences Affected:** `xpinstall.enabled`
2892 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\1 = "https://example.org"
2893 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\2 = "https://example.edu"
2894 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Default = 0x1 | 0x0
2896 #### Windows (Intune)
2899 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Allow
2904 <data id="Permissions" value="1https://example.org2https://example.edu"/>
2908 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Default
2917 <key>InstallAddonsPermission</key>
2921 <string>http://example.org</string>
2922 <string>http://example.edu</string>
2933 "InstallAddonsPermission": {
2934 "Allow": ["http://example.org/",
2935 "http://example.edu/"],
2936 "Default": true | false
2942 Disable the feature enforcing a separate profile for each installation.
2944 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.
2946 If this policy set to false, Firefox will create a new profile for each unique installation of Firefox.
2948 This policy only work on Windows via GPO (not policies.json).
2950 **Compatibility:** Firefox 70, Firefox ESR 68.2 (Windows only, GPO only)\
2951 **CCK2 Equivalent:** N/A\
2952 **Preferences Affected:** N/A
2956 Software\Policies\Mozilla\Firefox\LegacyProfiles = = 0x1 | 0x0
2958 #### Windows (Intune)
2961 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacyProfiles
2965 <enabled/> or <disabled/>
2968 Enable linking to local files by origin.
2970 **Compatibility:** Firefox 68, Firefox ESR 68\
2971 **CCK2 Equivalent:** N/A\
2972 **Preferences Affected:** `capability.policy.localfilelinks.*`
2976 Software\Policies\Mozilla\Firefox\LocalFileLinks\1 = "https://example.org"
2977 Software\Policies\Mozilla\Firefox\LocalFileLinks\2 = "https://example.edu"
2979 #### Windows (Intune)
2982 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LocalFileLinks
2987 <data id="LocalFileLinks" value="1https://example.org2https://example.edu"/>
2992 <key>LocalFileLinks</key>
2994 <string>http://example.org</string>
2995 <string>http://example.edu</string>
3003 "LocalFileLinks": ["http://example.org/",
3004 "http://example.edu/"]
3008 ### ManagedBookmarks
3009 Configures a list of bookmarks managed by an administrator that cannot be changed by the user.
3011 The bookmarks are only added as a button on the personal toolbar. They are not in the bookmarks folder.
3013 The syntax of this policy is exactly the same as the [Chrome ManagedBookmarks policy](https://cloud.google.com/docs/chrome-enterprise/policies/?policy=ManagedBookmarks). The schema is:
3017 "id": "BookmarkType",
3021 "$ref": "BookmarkType"
3040 **Compatibility:** Firefox 83, Firefox ESR 78.5\
3041 **CCK2 Equivalent:** N/A\
3042 **Preferences Affected:** N/A
3045 Software\Policies\Mozilla\Firefox\ManagedBookmarks (REG_MULTI_SZ) =
3049 "toplevel_name": "My managed bookmarks folder"
3052 "url": "example.com",
3056 "name": "Mozilla links",
3059 "url": "https://mozilla.org",
3060 "name": "Mozilla.org"
3063 "url": "https://support.mozilla.org/",
3070 #### Windows (Intune)
3073 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ManagedBookmarks
3078 <data id="JSON" value='
3081 "toplevel_name": "My managed bookmarks folder"
3084 "url": "example.com",
3088 "name": "Mozilla links",
3091 "url": "https://mozilla.org",
3092 "name": "Mozilla.org"
3095 "url": "https://support.mozilla.org/",
3105 <key>ManagedBookmarks</key>
3108 <key>toplevel_name</key>
3109 <string>My managed bookmarks folder</string></dict>
3112 <string>example.com</string>
3114 <string>Example</string>
3118 <string>Mozilla links</string>
3123 <string>https://mozilla.org</string>
3125 <string>Mozilla</string>
3129 <string>https://support.mozilla.org/</string>
3131 <string>SUMO</string>
3142 "ManagedBookmarks": [
3144 "toplevel_name": "My managed bookmarks folder"
3147 "url": "example.com",
3151 "name": "Mozilla links",
3154 "url": "https://mozilla.org",
3155 "name": "Mozilla.org"
3158 "url": "https://support.mozilla.org/",
3167 ### ManualAppUpdateOnly
3169 Switch to manual updates only.
3171 If this policy is enabled:
3172 1. The user will never be prompted to install updates
3173 2. Firefox will not check for updates in the background, though it will check automatically when an update UI is displayed (such as the one in the About dialog). This check will be used to show "Update to version X" in the UI, but will not automatically download the update or prompt the user to update in any other way.
3174 3. The update UI will work as expected, unlike when using DisableAppUpdate.
3176 This policy is primarily intended for advanced end users, not for enterprises.
3178 **Compatibility:** Firefox 87\
3179 **CCK2 Equivalent:** N/A\
3180 **Preferences Affected:** N/A
3186 "ManualAppUpdateOnly": true | false
3191 Require or prevent using a primary (formerly master) password.
3193 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.
3195 If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.
3197 **Compatibility:** Firefox 79, Firefox ESR 78.1\
3198 **CCK2 Equivalent:** `noMasterPassword`\
3199 **Preferences Affected:** N/A
3203 Software\Policies\Mozilla\Firefox\PrimaryPassword = 0x1 | 0x0
3205 #### Windows (Intune)
3208 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PrimaryPassword
3212 <enabled/> or <disabled/>
3217 <key>PrimaryPassword</key>
3225 "PrimaryPassword": true | false
3229 ### NetworkPrediction
3230 Enable or disable network prediction (DNS prefetching).
3232 **Compatibility:** Firefox 67, Firefox ESR 60.7\
3233 **CCK2 Equivalent:** N/A\
3234 **Preferences Affected:** `network.dns.disablePrefetch`,`network.dns.disablePrefetchFromHTTPS`
3238 Software\Policies\Mozilla\Firefox\NetworkPrediction = 0x1 | 0x0
3240 #### Windows (Intune)
3243 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NetworkPrediction
3247 <enabled/> or <disabled/>
3252 <key>NetworkPrediction</key>
3260 "NetworkPrediction": true | false
3264 Enable or disable the New Tab page.
3266 **Compatibility:** Firefox 68, Firefox ESR 68\
3267 **CCK2 Equivalent:** N/A\
3268 **Preferences Affected:** `browser.newtabpage.enabled`
3272 Software\Policies\Mozilla\Firefox\NewTabPage = 0x1 | 0x0
3274 #### Windows (Intune)
3277 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NewTabPage
3281 <enabled/> or <disabled/>
3286 <key>NewTabPage</key>
3294 "NewTabPage": true | false
3297 ### NoDefaultBookmarks
3298 Disable the creation of default bookmarks.
3300 This policy is only effective if the user profile has not been created yet.
3302 **Compatibility:** Firefox 60, Firefox ESR 60\
3303 **CCK2 Equivalent:** `removeDefaultBookmarks`\
3304 **Preferences Affected:** N/A
3308 Software\Policies\Mozilla\Firefox\NoDefaultBookmarks = 0x1 | 0x0
3310 #### Windows (Intune)
3313 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NoDefaultBookmarks
3317 <enabled/> or <disabled/>
3322 <key>NoDefaultBookmarks</key>
3330 "NoDefaultBookmarks": true | false
3334 ### OfferToSaveLogins
3335 Control whether or not Firefox offers to save passwords.
3337 **Compatibility:** Firefox 60, Firefox ESR 60\
3338 **CCK2 Equivalent:** `dontRememberPasswords`\
3339 **Preferences Affected:** `signon.rememberSignons`
3343 Software\Policies\Mozilla\Firefox\OfferToSaveLogins = 0x1 | 0x0
3345 #### Windows (Intune)
3348 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLogins
3352 <enabled/> or <disabled/>
3357 <key>OfferToSaveLogins</key>
3365 "OfferToSaveLogins": true | false
3369 ### OfferToSaveLoginsDefault
3370 Sets the default value of signon.rememberSignons without locking it.
3372 **Compatibility:** Firefox 70, Firefox ESR 60.2\
3373 **CCK2 Equivalent:** `dontRememberPasswords`\
3374 **Preferences Affected:** `signon.rememberSignons`
3378 Software\Policies\Mozilla\Firefox\OfferToSaveLoginsDefault = 0x1 | 0x0
3380 #### Windows (Intune)
3383 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLoginsDefault
3387 <enabled/> or <disabled/>
3392 <key>OfferToSaveLoginsDefault</key>
3400 "OfferToSaveLoginsDefault": true | false
3404 ### OverrideFirstRunPage
3405 Override the first run page. If the value is an empty string (""), the first run page is not displayed.
3407 Starting with Firefox 83, Firefox ESR 78.5, you can also specify multiple URLS separated by a vertical bar (|).
3409 **Compatibility:** Firefox 60, Firefox ESR 60\
3410 **CCK2 Equivalent:** `welcomePage`,`noWelcomePage`\
3411 **Preferences Affected:** `startup.homepage_welcome_url`
3415 Software\Policies\Mozilla\Firefox\OverrideFirstRunPage = "http://example.org"
3417 #### Windows (Intune)
3420 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverrideFirstRunPage
3425 <data id="OverridePage" value="https://example.com"/>
3430 <key>OverrideFirstRunPage</key>
3431 <string>http://example.org</string>
3438 "OverrideFirstRunPage": "http://example.org"
3441 ### OverridePostUpdatePage
3442 Override the upgrade page. If the value is an empty string (""), no extra pages are displayed when Firefox is upgraded.
3444 **Compatibility:** Firefox 60, Firefox ESR 60\
3445 **CCK2 Equivalent:** `upgradePage`,`noUpgradePage`\
3446 **Preferences Affected:** `startup.homepage_override_url`
3450 Software\Policies\Mozilla\Firefox\OverridePostUpdatePage = "http://example.org"
3452 #### Windows (Intune)
3455 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverridePostUpdatePage
3460 <data id="OverridePage" value="https://example.com"/>
3465 <key>OverridePostUpdatePage</key>
3466 <string>http://example.org</string>
3473 "OverridePostUpdatePage": "http://example.org"
3476 ### PasswordManagerEnabled
3477 Remove access to the password manager via preferences and blocks about:logins on Firefox 70.
3479 **Compatibility:** Firefox 70, Firefox ESR 60.2\
3480 **CCK2 Equivalent:** N/A\
3481 **Preferences Affected:** `pref.privacy.disable_button.view_passwords`
3485 Software\Policies\Mozilla\Firefox\PasswordManagerEnabled = 0x1 | 0x0
3487 #### Windows (Intune)
3490 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerEnabled
3494 <enabled/> or <disabled/>
3499 <key>PasswordManagerEnabled</key>
3507 "PasswordManagerEnabled": true | false
3512 Disable or configure PDF.js, the built-in PDF viewer.
3514 If `Enabled` is set to false, the built-in PDF viewer is disabled.
3516 If `EnablePermissions` is set to true, the built-in PDF viewer will honor document permissions like preventing the copying of text.
3518 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.
3520 **Compatibility:** Firefox 77, Firefox ESR 68.9\
3521 **CCK2 Equivalent:** N/A\
3522 **Preferences Affected:** `pdfjs.diabled`,`pdfjs.enablePermissions`
3526 Software\Policies\Mozilla\Firefox\PDFjs\Enabled = 0x1 | 0x0
3527 Software\Policies\Mozilla\Firefox\PDFjs\EnablePermissions = 0x1 | 0x0
3529 #### Windows (Intune)
3532 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_Enabled
3533 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_EnablePermissions
3537 <enabled/>or <disabled/>
3546 <key>EnablePermissions</key>
3556 "Enabled": true | false,
3557 "EnablePermissions": true | false
3562 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.
3564 `Allow` is a list of origins where the feature is allowed.
3566 `Block` is a list of origins where the feature is not allowed.
3568 `BlockNewRequests` determines whether or not new requests can be made for the feature.
3570 `Locked` prevents the user from changing preferences for the feature.
3572 `Default` specifies the default value for Autoplay. block-audio-video is not supported on Firefox ESR 68.
3574 **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)\
3575 **CCK2 Equivalent:** N/A\
3576 **Preferences Affected:** `permissions.default.camera`,`permissions.default.microphone`,`permissions.default.geo`,`permissions.default.desktop-notification`,`media.autoplay.default`.`permissions.default.xr`
3580 Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\1 = "https://example.org"
3581 Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\2 = "https://example.org:1234"
3582 Software\Policies\Mozilla\Firefox\Permissions\Camera\Block\1 = "https://example.edu"
3583 Software\Policies\Mozilla\Firefox\Permissions\Camera\BlockNewRequests = 0x1 | 0x0
3584 Software\Policies\Mozilla\Firefox\Permissions\Camera\Locked = 0x1 | 0x0
3585 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Allow\1 = "https://example.org"
3586 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Block\1 = "https://example.edu"
3587 Software\Policies\Mozilla\Firefox\Permissions\Microphone\BlockNewRequests = 0x1 | 0x0
3588 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Locked = 0x1 | 0x0
3589 Software\Policies\Mozilla\Firefox\Permissions\Location\Allow\1 = "https://example.org"
3590 Software\Policies\Mozilla\Firefox\Permissions\Location\Block\1 = "https://example.edu"
3591 Software\Policies\Mozilla\Firefox\Permissions\Location\BlockNewRequests = 0x1 | 0x0
3592 Software\Policies\Mozilla\Firefox\Permissions\Location\Locked = 0x1 | 0x0
3593 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Allow\1 = "https://example.org"
3594 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Block\1 = "https://example.edu"
3595 Software\Policies\Mozilla\Firefox\Permissions\Notifications\BlockNewRequests = 0x1 | 0x0
3596 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Locked = 0x1 | 0x0
3597 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Allow\1 = "https://example.org"
3598 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Block\1 = "https://example.edu"
3599 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Default = "allow-audio-video" | "block-audio" | "block-audio-video"
3600 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Locked = 0x1 | 0x0
3601 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Allow\1 = "https://example.org"
3602 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Block\1 = "https://example.edu"
3603 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\BlockNewRequests = 0x1 | 0x0
3604 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Locked = 0x1 | 0x0
3606 #### Windows (Intune)
3609 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_BlockNewRequests
3613 <enabled/> or <disabled/>
3617 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_Locked
3621 <enabled/> or <disabled/>
3625 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Allow
3630 <data id="Permissions" value="1https://example.org"/>
3634 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_BlockNewRequests
3638 <enabled/> or <disabled/>
3642 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Locked
3646 <enabled/> or <disabled/>
3650 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Allow
3655 <data id="Permissions" value="1https://example.org"/>
3659 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Block
3664 <data id="Permissions" value="1https://example.edu"/>
3668 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Default
3673 <data id="Autoplay_Default" value="allow-audio-video | block-audio | block-audio-video"/>
3677 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Locked
3681 <enabled/> or <disabled/>
3685 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Allow
3690 <data id="Permissions" value="1https://example.org"/>
3694 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Block
3699 <data id="Permissions" value="1https://example.edu"/>
3703 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_BlockNewRequests
3707 <enabled/> or <disabled/>
3711 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Locked
3715 <enabled/> or <disabled/>
3720 <key>Permissions</key>
3726 <string>https://example.org</string>
3727 <string>https://example.org:1234</string>
3731 <string>https://example.edu</string>
3733 <key>BlockNewRequests</key>
3738 <key>Microphone</key>
3742 <string>https://example.org</string>
3746 <string>https://example.edu</string>
3748 <key>BlockNewRequests</key>
3757 <string>https://example.org</string>
3761 <string>https://example.edu</string>
3763 <key>BlockNewRequests</key>
3768 <key>Notifications</key>
3772 <string>https://example.org</string>
3776 <string>https://example.edu</string>
3778 <key>BlockNewRequests</key>
3787 <string>https://example.org</string>
3791 <string>https://example.edu</string>
3794 <string>allow-audio-video | block-audio | block-audio-video</string>
3807 "Allow": ["https://example.org","https://example.org:1234"],
3808 "Block": ["https://example.edu"],
3809 "BlockNewRequests": true | false,
3810 "Locked": true | false
3813 "Allow": ["https://example.org"],
3814 "Block": ["https://example.edu"],
3815 "BlockNewRequests": true | false,
3816 "Locked": true | false
3819 "Allow": ["https://example.org"],
3820 "Block": ["https://example.edu"],
3821 "BlockNewRequests": true | false,
3822 "Locked": true | false
3825 "Allow": ["https://example.org"],
3826 "Block": ["https://example.edu"],
3827 "BlockNewRequests": true | false,
3828 "Locked": true | false
3831 "Allow": ["https://example.org"],
3832 "Block": ["https://example.edu"],
3833 "Default": "allow-audio-video" | "block-audio" | "block-audio-video",
3834 "Locked": true | false
3840 ### PictureInPicture
3842 Enable or disable Picture-in-Picture as well as prevent the user from enabling or disabling it (Locked).
3844 **Compatibility:** Firefox 78, Firefox ESR 78\
3845 **CCK2 Equivalent:** N/A\
3846 **Preferences Affected:** `media.videocontrols.picture-in-picture.video-toggle.enabled`
3850 Software\Policies\Mozilla\Firefox\PictureInPicture\Enabled = 0x1 | 0x0
3851 Software\Policies\Mozilla\Firefox\PictureInPicture\Locked = 0x1 | 0x0
3854 #### Windows (Intune)
3857 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Enabled
3858 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Locked
3862 <enabled/> or <disabled/>
3867 <key>PictureInPicture</key>
3880 "PictureInPicture": {
3881 "Enabled": true | false,
3882 "Locked": true, false
3888 Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
3890 `Allow` is a list of origins where popup-windows are allowed.
3892 `Default` determines whether or not pop-up windows are allowed by default.
3894 `Locked` prevents the user from changing pop-up preferences.
3896 **Compatibility:** Firefox 60, Firefox ESR 60\
3897 **CCK2 Equivalent:** `permissions.popup`\
3898 **Preferences Affected:** `dom.disable_open_during_load`
3902 Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\1 = "https://example.org"
3903 Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\2 = "https://example.edu"
3904 Software\Policies\Mozilla\Firefox\PopupBlocking\Default = 0x1 | 0x0
3905 Software\Policies\Mozilla\Firefox\PopupBlocking\Locked = 0x1 | 0x0
3907 #### Windows (Intune)
3910 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Allow
3915 <data id="Permissions" value="1https://example.org2https://example.edu"/>
3919 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Default
3923 <enabled/> or <disabled/>
3927 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Locked
3931 <enabled/> or <disabled/>
3936 <key>PopupBlocking</key>
3940 <string>http://example.org</string>
3941 <string>http://example.edu</string>
3955 "Allow": ["http://example.org/",
3956 "http://example.edu/"],
3957 "Default": true | false,
3958 "Locked": true | false
3964 Set and lock preferences.
3966 **NOTE** On Windows, in order to use this policy, you must clear all settings in the old **Preferences (Deprecated)** section.
3968 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.
3970 Preferences that start with the following prefixes are supported:
3973 app.update.* (Firefox 86, Firefox 78.8)
3975 datareporting.policy.
3978 general.autoScroll (Firefox 83, Firefox ESR 78.5)
3979 general.smoothScroll (Firefox 83, Firefox ESR 78.5)
3985 pdfjs. (Firefox 84, Firefox ESR 78.6)
3988 signon. (Firefox 83, Firefox ESR 78.5)
3989 spellchecker. (Firefox 84, Firefox ESR 78.6)
3993 as well as the following security preferences:
3994 | Preference | Type | Default
3996 | security.default_personal_cert | string | Ask Every Time
3997 | If set to Select Automatically, Firefox automatically chooses the default personal certificate.
3998 | security.insecure_connection_text.enabled | bool | false
3999 | If set to true, adds the words "Not Secure" for insecure sites.
4000 | security.insecure_connection_text.pbmode.enabled | bool | false
4001 | If set to true, adds the words "Not Secure" for insecure sites in private browsing.
4002 | security.insecure_field_warning.contextual.enabled | bool | true
4003 | If set to false, remove the warning for inscure login fields.
4004 | security.mixed_content.block_active_content | boolean | true
4005 | If false, mixed active content (HTTP and HTTPS) is not blocked.
4006 | security.osclientcerts.autoload | boolean | false
4007 | If true, client certificates are loaded from the operating system certificate store.
4008 | security.ssl.errorReporting.enabled | boolean | true
4009 | If false, SSL errors cannot be sent to Mozilla.
4010 | security.tls.hello_downgrade_check | boolean | true
4011 | If false, the TLS 1.3 downgrade check is disabled.
4012 | security.tls.version.enable-deprecated | boolean | false
4013 | If true, browser will accept TLS 1.0. and TLS 1.1 (Firefox 86, Firefox 78.8)
4014 | security.warn_submit_secure_to_insecure | boolean | true
4015 | If false, no warning is shown when submitting s form from https to http.
4018 Using the preference as the key, set the `Value` to the corresponding preference value.
4020 `Status` can be "default", "locked", "user" or "clear"
4022 Default preferences can be modified by the user.
4024 If a value is locked, it is also set as the default.
4026 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.
4028 User preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.
4030 See the examples below for more detail.
4032 IMPORTANT: Make sure you're only setting a particular preference using this mechanism and not some other way.
4035 **Compatibility:** Firefox 81, Firefox ESR 78.3\
4036 **CCK2 Equivalent:** `preferences`\
4037 **Preferences Affected:** Many
4040 Software\Policies\Mozilla\Firefox\Preferences (REG_MULTI_SZ) =
4043 "accessibility.force_disabled": {
4047 "browser.cache.disk.parent_directory": {
4048 "Value": "SOME_NATIVE_PATH",
4051 "browser.tabs.warnOnClose": {
4057 #### Windows (Intune)
4060 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Preferences
4065 <data id="JSON" value='
4067 "accessibility.force_disabled": {
4071 "browser.cache.disk.parent_directory": {
4072 "Value": "SOME_NATIVE_PATH",
4075 "browser.tabs.warnOnClose": {
4084 <key>Preferences</key>
4086 <key>accessibility.force_disabled</key>
4089 <integer>1</integer>
4091 <string>default</string>
4093 <key>browser.cache.disk.parent_directory</key>
4096 <string>SOME_NATIVE_PATH</string>
4098 <string>user</string>
4100 <key>browser.tabs.warnOnClose</key>
4105 <string>locked</string>
4115 "accessibility.force_disabled": {
4119 "browser.cache.disk.parent_directory": {
4120 "Value": "SOME_NATIVE_PATH",
4123 "browser.tabs.warnOnClose": {
4131 ### Preferences (Deprecated)
4132 Set and lock certain preferences.
4134 **Compatibility:** See below\
4135 **CCK2 Equivalent:** `preferences`\
4136 **Preferences Affected:** See below
4138 | Preference | Type | Compatibility | Default
4139 | --- | --- | --- | ---
4140 | accessibility.force_disabled | integer | Firefox 70, Firefox ESR 68.2 | 0
4141 | If set to 1, platform accessibility is disabled.
4142 | app.update.auto (Deprecated - Switch to AppAutoUpdate policy) | boolean | Firefox 68, Firefox ESR 68 | true
4143 | If false, Firefox doesn't automatically install update.
4144 | browser.bookmarks.autoExportHTML | boolean | Firefox 70, Firefox ESR 68.2 | false
4145 | If true, bookmarks are exported on shutdown.
4146 | browser.bookmarks.file | string | Firefox 70, Firefox ESR 68.2 | N/A
4147 | If set, the name of the file where bookmarks are exported and imported.
4148 | browser.bookmarks.restore_default_bookmarks | boolean | Firefox 70, Firefox ESR 68.2 | N/A
4149 | If true, bookmarks are restored to their defaults.
4150 | browser.cache.disk.enable | boolean | Firefox 68, Firefox ESR 68 | true
4151 | If false, don't store cache on the hard drive.
4152 | ~browser.cache.disk.parent_directory~ | string | Firefox 68, Firefox ESR 68 | Profile temporary directory
4153 | ~If set, changes the location of the disk cache.~ This policy doesn't work. It's being worked on.
4154 | browser.fixup.dns_first_for_single_words | boolean | Firefox 68, Firefox ESR 68 | false
4155 | If true, single words are sent to DNS, not directly to search.
4156 | browser.newtabpage.activity-stream.default.sites | string | Firefox 72, ESR 68.4 | Locale dependent
4157 | 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.
4158 | browser.places.importBookmarksHTML | boolean | Firefox 70, Firefox ESR 68.2
4159 | If true, bookmarks are always imported on startup.
4160 | browser.safebrowsing.phishing.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4161 | If false, phishing protection is not enabled (Not recommended)
4162 | browser.safebrowsing.malware.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4163 | If false, malware protection is not enabled (Not recommended)
4164 | browser.search.update | boolean | Firefox 68, Firefox ESR 68 | true
4165 | If false, updates for search engines are not checked.
4166 | browser.slowStartup.notificationDisabled | boolean | Firefox 70, Firefox ESR 68.2 | false
4167 | If true, a notification isn't shown if startup is slow.
4168 | browser.tabs.warnOnClose | boolean | Firefox 68, Firefox ESR 68 | true
4169 | If false, there is no warning when the browser is closed.
4170 | browser.taskbar.previews.enable | boolean | Firefox 70, Firefox ESR 68.2 (Windows only) | false
4171 | If true, tab previews are shown in the Windows taskbar.
4172 | browser.urlbar.suggest.bookmark | boolean | Firefox 68, Firefox ESR 68 | true
4173 | If false, bookmarks aren't suggested when typing in the URL bar.
4174 | browser.urlbar.suggest.history | boolean | Firefox 68, Firefox ESR 68 | true
4175 | If false, history isn't suggested when typing in the URL bar.
4176 | browser.urlbar.suggest.openpage | boolean | Firefox 68, Firefox ESR 68 | true
4177 | If false, open tabs aren't suggested when typing in the URL bar.
4178 | datareporting.policy.dataSubmissionPolicyBypassNotification | boolean | Firefox 68, Firefox ESR 68 | false
4179 | If true, don't show the privacy policy tab on first run.
4180 | dom.allow_scripts_to_close_windows | boolean | Firefox 70, Firefox ESR 68.2 | false
4181 | If false, web page can close windows.
4182 | dom.disable_window_flip | boolean | Firefox 68, Firefox ESR 68 | true
4183 | If false, web pages can focus and activate windows.
4184 | dom.disable_window_move_resize | boolean | Firefox 68, Firefox ESR 68 | false
4185 | If true, web pages can't move or resize windows.
4186 | dom.event.contextmenu.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4187 | If false, web pages can't override context menus.
4188 | dom.keyboardevent.keypress.hack.dispatch_non_printable_keys.addl | string | Firefox 68, Firefox ESR 68 | N/A
4189 | See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
4190 | dom.keyboardevent.keypress.hack.use_legacy_keycode_and_charcode.addl | string | Firefox 68, Firefox ESR 68 | N/A
4191 | See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
4192 | dom.xmldocument.load.enabled | boolean | Firefox ESR 68.5 | true.
4193 | If false, XMLDocument.load is not available.
4194 | dom.xmldocument.async.enabled | boolean | Firefox ESR 68.5 | true
4195 | If false, XMLDocument.async is not available.
4196 | extensions.blocklist.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4197 | If false, the extensions blocklist is not used (Not recommended)
4198 | extensions.getAddons.showPane | boolean | Firefox 68, Firefox ESR 68 | N/A
4199 | If false, the Recommendations tab is not displayed in the Add-ons Manager.
4200 | extensions.htmlaboutaddons.recommendations.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
4201 | If false, recommendations are not shown on the Extensions tab in the Add-ons Manager.
4202 | geo.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4203 | If false, the geolocation API is disabled. | Language dependent
4204 | intl.accept_languages | string | Firefox 70, Firefox ESR 68.2
4205 | If set, preferred language for web pages.
4206 | media.eme.enabled (Deprecated - Switch to EncryptedMediaExtensions policy) | boolean | Firefox 70, Firefox ESR 68.2 | true
4207 | If false, Encrypted Media Extensions are not enabled.
4208 | media.gmp-gmpopenh264.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4209 | If false, the OpenH264 plugin is not downloaded.
4210 | media.gmp-widevinecdm.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4211 | If false, the Widevine plugin is not downloaded.
4212 | media.peerconnection.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
4213 | If false, WebRTC is disabled
4214 | media.peerconnection.ice.obfuscate_host_addresses.whitelist (Deprecated) | string | Firefox 72, Firefox ESR 68.4 | N/A
4215 | If set, a list of domains for which mDNS hostname obfuscation is
4217 | media.peerconnection.ice.obfuscate_host_addresses.blocklist | string | Firefox 79, Firefox ESR 78.1 | N/A
4218 | If set, a list of domains for which mDNS hostname obfuscation is
4220 | network.dns.disableIPv6 | boolean | Firefox 68, Firefox ESR 68 | false
4221 | If true, IPv6 DNS lokoups are disabled.
4222 | network.IDN_show_punycode | boolean | Firefox 68, Firefox ESR 68 | false
4223 | If true, display the punycode version of internationalized domain names.
4224 | places.history.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4225 | If false, history is not enabled.
4226 | print.save_print_settings | boolean | Firefox 70, Firefox ESR 68.2 | true
4227 | If false, print settings are not saved between jobs.
4228 | security.default_personal_cert | string | Firefox 68, Firefox ESR 68 | Ask Every Time
4229 | If set to Select Automatically, Firefox automatically chooses the default personal certificate.
4230 | security.mixed_content.block_active_content | boolean | Firefox 70, Firefox ESR 68.2 | true
4231 | If false, mixed active content (HTTP and HTTPS) is not blocked.
4232 | security.osclientcerts.autoload | boolean | Firefox 72 (Windows), Firefox 75 (macOS) | false
4233 | If true, client certificates are loaded from the operating system certificate store.
4234 | security.ssl.errorReporting.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4235 | If false, SSL errors cannot be sent to Mozilla.
4236 | security.tls.hello_downgrade_check | boolean | Firefox 72, Firefox ESR 68.4 | true
4237 | If false, the TLS 1.3 downgrade check is disabled.
4238 | ui.key.menuAccessKeyFocuses | boolean | Firefox 68, Firefox ESR 68 | true
4239 | If false, the Alt key doesn't show the menubar on Windows.
4240 | widget.content.gtk-theme-override | string | Firefox 72, Firefox ESR 68.4 (Linux only) | N/A
4241 | If set, overrides the GTK theme for widgets.
4244 Software\Policies\Mozilla\Firefox\Preferences\boolean_preference_name = 0x1 | 0x0
4245 Software\Policies\Mozilla\Firefox\Preferences\string_preference_name = "string_value"
4247 #### Windows (Intune)
4248 OMA-URI: (periods are replaced by underscores)
4250 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/boolean_preference_name
4254 <enabled/> or <disabled/>
4256 OMA-URI: (periods are replaced by underscores)
4258 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/string_preference_name
4263 <data id="Preferences_String" value="string_value"/>
4268 <key>Preferences</key>
4270 <key>boolean_preference_name</key>
4272 <key>string_preference_name</key>
4273 <string>string_value</string>
4282 "boolean_preference_name": true | false,
4283 "string_preference_name": "string_value"
4288 ### PromptForDownloadLocation
4289 Ask where to save each file before downloading.
4291 **Compatibility:** Firefox 68, Firefox ESR 68\
4292 **CCK2 Equivalent:** N/A\
4293 **Preferences Affected:** `browser.download.useDownloadDir`
4297 Software\Policies\Mozilla\Firefox\PromptForDownloadLocation = 0x1 | 0x0
4299 #### Windows (Intune)
4302 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PromptForDownloadLocation
4306 <enabled/> or <disabled/>
4311 <key>PromptForDownloadLocation</key>
4319 "PromptForDownloadLocation": true | false
4324 Configure proxy settings. These settings correspond to the connection settings in Firefox preferences.
4325 To specify ports, append them to the hostnames with a colon (:).
4327 `Mode` is the proxy method being used.
4329 `Locked` is whether or not proxy settings can be changed.
4331 `HTTPProxy` is the HTTP proxy server.
4333 `UseHTTPProxyForAllProtocols` is whether or not the HTTP proxy should be used for all other proxies.
4335 `SSLProxy` is the SSL proxy server.
4337 `FTPProxy` is the FTP proxy server.
4339 `SOCKSProxy` is the SOCKS proxy server
4341 `SOCKSVersion` is the SOCKS version (4 or 5)
4343 `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.
4345 `AutoConfigURL` is a URL for proxy configuration (only used if Mode is autoConfig).
4347 `AutoLogin` means do not prompt for authentication if password is saved.
4349 `UseProxyForDNS` to use proxy DNS when using SOCKS v5.
4351 **Compatibility:** Firefox 60, Firefox ESR 60\
4352 **CCK2 Equivalent:** `networkProxy*`\
4353 **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`
4357 Software\Policies\Mozilla\Firefox\Proxy\Mode = "none" | "system" | "manual" | "autoDetect" | "autoConfig"
4358 Software\Policies\Mozilla\Firefox\Proxy\Locked = 0x1 | 0x0
4359 Software\Policies\Mozilla\Firefox\=Proxy\HTTPProxy = https://httpproxy.example.com
4360 Software\Policies\Mozilla\Firefox\Proxy\UseHTTPProxyForAllProtocols = 0x1 | 0x0
4361 Software\Policies\Mozilla\Firefox\Proxy\SSLProxy = https://sslproxy.example.com
4362 Software\Policies\Mozilla\Firefox\Proxy\FTPProxy = https://ftpproxy.example.com
4363 Software\Policies\Mozilla\Firefox\Proxy\SOCKSProxy = https://socksproxy.example.com
4364 Software\Policies\Mozilla\Firefox\Proxy\SOCKSVersion = 0x4 | 0x5
4365 Software\Policies\Mozilla\Firefox\Proxy\Passthrough = <local>
4366 Software\Policies\Mozilla\Firefox\Proxy\AutoConfigURL = URL_TO_AUTOCONFIG
4367 Software\Policies\Mozilla\Firefox\Proxy\AutoLogin = 0x1 | 0x0
4368 Software\Policies\Mozilla\Firefox\Proxy\UseProxyForDNS = 0x1 | 0x0
4370 #### Windows (Intune)
4373 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy
4378 <data id="ProxyLocked" value="true | false"/>
4379 <data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
4380 <data id="HTTPProxy" value="https://httpproxy.example.com"/>
4381 <data id="UseHTTPProxyForAllProtocols" value="true | false"/>
4382 <data id="SSLProxy" value="https://sslproxy.example.com"/>
4383 <data id="FTPProxy" value="https://ftpproxy.example.com"/>
4384 <data id="SOCKSProxy" value="https://socksproxy.example.com"/>
4385 <data id="SOCKSVersion" value="4 | 5"/>
4386 <data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
4387 <data id="Passthrough" value="<local>"/>
4388 <data id="AutoLogin" value="true | false"/>
4389 <data id="UseProxyForDNS" value="true | false"/>
4397 <string>none | system | manual | autoDetect | autoConfig</string>
4400 <key>HTTPProxy</key>
4401 <string>https://httpproxy.example.com</string>
4402 <key>UseHTTPProxyForAllProtocols</key>
4405 <string>https://sslproxy.example.com</string>
4407 <string>https://ftpproxy.example.com</string>
4408 <key>SOCKSProxy</key>
4409 <string>https://socksproxy.example.com</string>
4410 <key>SOCKSVersion</key>
4411 <string>4 | 5</string>
4412 <key>Passthrough</key>
4413 <string><local>></string>
4414 <key>AutoConfigURL</key>
4415 <string>URL_TO_AUTOCONFIG</string>
4416 <key>AutoLogin</key>
4418 <key>UseProxyForDNS</key>
4428 "Mode": "none" | "system" | "manual" | "autoDetect" | "autoConfig",
4429 "Locked": true | false,
4430 "HTTPProxy": "hostname",
4431 "UseHTTPProxyForAllProtocols": true | false,
4432 "SSLProxy": "hostname",
4433 "FTPProxy": "hostname",
4434 "SOCKSProxy": "hostname",
4435 "SOCKSVersion": 4 | 5
4436 "Passthrough": "<local>",
4437 "AutoConfigURL": "URL_TO_AUTOCONFIG",
4438 "AutoLogin": true | false,
4439 "UseProxyForDNS": true | false
4444 ### RequestedLocales
4445 Set the the list of requested locales for the application in order of preference. It will cause the corresponding language pack to become active.
4447 Note: For Firefox 68, this can now be a string so that you can specify an empty value.
4449 **Compatibility:** Firefox 64, Firefox ESR 60.4, Updated in Firefox 68, Firefox ESR 68\
4450 **CCK2 Equivalent:** N/A\
4451 **Preferences Affected:** N/A
4454 Software\Policies\Mozilla\Firefox\RequestedLocales\1 = "de"
4455 Software\Policies\Mozilla\Firefox\RequestedLocales\2 = "en-US"
4459 Software\Policies\Mozilla\Firefox\RequestedLocales = "de,en-US"
4461 #### Windows (Intune)
4464 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/RequestedLocalesString
4469 <data id="Preferences_String" value="de,en-US"/>
4474 <key>RequestedLocales</key>
4477 <string>en-US</string>
4484 <key>RequestedLocales</key>
4485 <string>de,en-US</string>
4493 "RequestedLocales": ["de", "en-US"]
4501 "RequestedLocales": "de,en-US"
4505 <a name="SanitizeOnShutdown"></a>
4507 ### SanitizeOnShutdown (Selective)
4508 Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.
4510 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.
4512 **Compatibility:** Firefox 68, Firefox ESR 68 (Locked added in 74/68.6)\
4513 **CCK2 Equivalent:** N/A\
4514 **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`
4517 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cache = 0x1 | 0x0
4518 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cookies = 0x1 | 0x0
4519 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Downloads = 0x1 | 0x0
4520 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\FormData = 0x1 | 0x0
4521 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\History = 0x1 | 0x0
4522 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Sessions = 0x1 | 0x0
4523 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\SiteSettings = 0x1 | 0x0
4524 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\OfflineApps = 0x1 | 0x0
4525 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Locked = 0x1 | 0x0
4527 #### Windows (Intune)
4530 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/A_SanitizeOnShutdown_Cache
4534 <enabled/> or <disabled/>
4538 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/B_SanitizeOnShutdown_Cookies
4542 <enabled/> or <disabled/>
4546 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/C_SanitizeOnShutdown_Downloads
4550 <enabled/> or <disabled/>
4554 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/D_SanitizeOnShutdown_FormData
4558 <enabled/> or <disabled/>
4562 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/E_SanitizeOnShutdown_History
4566 <enabled/> or <disabled/>
4570 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/F_SanitizeOnShutdown_Sessions
4574 <enabled/> or <disabled/>
4578 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/G_SanitizeOnShutdown_SiteSettings
4582 <enabled/> or <disabled/>
4586 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/H_SanitizeOnShutdown_OfflineApps
4590 <enabled/> or <disabled/>
4594 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/I_SanitizeOnShutdown_Locked
4598 <enabled/> or <disabled/>
4603 <key>SanitizeOnShutdown</key>
4609 <key>Downloads</key>
4617 <key>SiteSettings</key>
4619 <key>OfflineApps</key>
4630 "SanitizeOnShutdown": {
4631 "Cache": true | false,
4632 "Cookies": true | false,
4633 "Downloads": true | false,
4634 "FormData": true | false,
4635 "History": true | false,
4636 "Sessions": true | false,
4637 "SiteSettings": true | false,
4638 "OfflineApps": true | false,
4639 "Locked": true | false
4644 ### SanitizeOnShutdown (All)
4645 Clear all data on shutdown, including Browsing & Download History, Cookies, Active Logins, Cache, Form & Search History, Site Preferences and Offline Website Data.
4647 **Compatibility:** Firefox 60, Firefox ESR 60\
4648 **CCK2 Equivalent:** N/A\
4649 **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`
4652 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown = 0x1 | 0x0
4654 #### Windows (Intune)
4657 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/C_SanitizeOnShutdown
4661 <enabled/> or <disabled/>
4666 <key>SanitizeOnShutdown</key>
4674 "SanitizeOnShutdown": true | false
4679 Set whether or not search bar is displayed.
4681 **Compatibility:** Firefox 60, Firefox ESR 60\
4682 **CCK2 Equivalent:** `showSearchBar`\
4683 **Preferences Affected:** N/A
4687 Software\Policies\Mozilla\Firefox\SearchBar = "unified" | "separate"
4690 #### Windows (Intune)
4693 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SearchBar
4698 <data id="Permissions" value="unified | separate"/>
4703 <key>SearchBar</key>
4704 <string>unified | separate</string>
4711 "SearchBar": "unified" | "separate"
4715 <a name="SearchEngines"></a>
4717 ### SearchEngines (This policy is only available on the ESR.)
4719 ### SearchEngines | Default
4721 Set the default search engine. This policy is only available on the ESR.
4723 **Compatibility:** Firefox ESR 60\
4724 **CCK2 Equivalent:** `defaultSearchEngine`\
4725 **Preferences Affected:** N/A
4729 Software\Policies\Mozilla\Firefox\SearchEngines\Default = NAME_OF_SEARCH_ENGINE
4731 #### Windows (Intune)
4734 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Default
4739 <data id="SearchEngines_Default" value="NAME_OF_SEARCH_ENGINE"/>
4744 <key>SearchEngines</key>
4747 <string>NAME_OF_SEARCH_ENGINE</string>
4756 "Default": "NAME_OF_SEARCH_ENGINE"
4761 ### SearchEngines | PreventInstalls
4763 Prevent installing search engines from webpages.
4765 **Compatibility:** Firefox ESR 60\
4766 **CCK2 Equivalent:** `disableSearchEngineInstall`\
4767 **Preferences Affected:** N/A
4771 Software\Policies\Mozilla\Firefox\SearchEngines\PreventInstalls = 0x1 | 0x0
4773 #### Windows (Intune)
4776 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_PreventInstalls
4780 <enabled/> or <disabled/>
4785 <key>SearchEngines</key>
4787 <key>PreventInstalls</key>
4797 "PreventInstalls": true | false
4802 ### SearchEngines | Remove
4804 Hide built-in search engines. This policy is only available on the ESR.
4806 **Compatibility:** Firefox ESR 60.2\
4807 **CCK2 Equivalent:** `removeDefaultSearchEngines` (removed all built-in engines)\
4808 **Preferences Affected:** N/A
4812 Software\Policies\Mozilla\Firefox\SearchEngines\Remove\1 = NAME_OF_SEARCH_ENGINE
4814 #### Windows (Intune)
4817 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Remove
4822 <data id="SearchEngines_Remove" value="1NAME_OF_SEARCH_ENGINE"/>
4827 <key>SearchEngines</key>
4831 <string>NAME_OF_SEARCH_ENGINE</string>
4841 "Remove": ["NAME_OF_SEARCH_ENGINE"]
4846 ### SearchEngines | Add
4848 Add new search engines (up to five). This policy is only available on the ESR. `Name` and `URLTemplate` are required.
4850 `Name` is the name of the search engine.
4852 `URLTemplate` is the search URL with {searchTerms} to substitute for the search term.
4854 `Method` is either GET or POST
4856 `IconURL` is a URL for the icon to use.
4858 `Alias` is a keyword to use for the engine.
4860 `Description` is a description of the search engine.
4862 `PostData` is the POST data as name value pairs separated by &.
4864 `SuggestURLTemplate` is a search suggestions URL with {searchTerms} to substitute for the search term.
4866 **Compatibility:** Firefox ESR 60 (POST support in Firefox ESR 68)\
4867 **CCK2 Equivalent:** `searchplugins`\
4868 **Preferences Affected:** N/A
4872 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Name = "Example1"
4873 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\URLTemplate = "https://www.example.org/q={searchTerms}"
4874 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Method = "GET" | "POST"
4875 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\IconURL = "https://www.example.org/favicon.ico"
4876 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Alias = "example"
4877 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Description = "Example Description"
4878 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\SuggestURLTemplate = "https://www.example.org/suggestions/q={searchTerms}"
4879 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\PostData = "name=value&q={searchTerms}"
4881 #### Windows (Intune)
4884 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_1
4889 <data id="SearchEngine_Name" value="Example1"/>
4890 <data id="SearchEngine_URLTemplate" value="https://www.example.org/q={searchTerms"/>
4891 <data id="SearchEngine_Method" value="GET | POST"/>
4892 <data id="SearchEngine_IconURL" value="https://www.example.org/favicon.ico"/>
4893 <data id="SearchEngine_Alias" value="example"/>
4894 <data id="SearchEngine_Description" value="Example Description"/>
4895 <data id="SearchEngine_SuggestURLTemplate" value="https://www.example.org/suggestions/q={searchTerms}"/>
4896 <data id="SearchEngine_PostData" value="name=value&q={searchTerms}"/>
4901 <key>SearchEngines</key>
4907 <string>Example1</string>
4908 <key>URLTemplate</key>
4909 <string>https://www.example.org/q={searchTerms}</string>
4911 <string>GET | POST </string>
4913 <string>https://www.example.org/favicon.ico</string>
4915 <string>example</string>
4916 <key>Description</key>
4917 <string>Example Description</string>
4918 <key>SuggestURLTemplate</key>
4919 <string>https://www.example.org/suggestions/q={searchTerms}</string>
4921 <string>name=value&q={searchTerms}</string>
4935 "URLTemplate": "https://www.example.org/q={searchTerms}",
4936 "Method": "GET" | "POST",
4937 "IconURL": "https://www.example.org/favicon.ico",
4939 "Description": "Description",
4940 "PostData": "name=value&q={searchTerms}",
4941 "SuggestURLTemplate": "https://www.example.org/suggestions/q={searchTerms}"
4948 ### SearchSuggestEnabled
4950 Enable search suggestions.
4952 **Compatibility:** Firefox 68, Firefox ESR 68\
4953 **CCK2 Equivalent:** N/A\
4954 **Preferences Affected:** `browser.urlbar.suggest.searches`,`browser.search.suggest.enabled`
4958 Software\Policies\Mozilla\Firefox\SearchSuggestEnabled = 0x1 | 0x0
4960 #### Windows (Intune)
4963 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchSuggestEnabled
4967 <enabled/> or <disabled/>
4972 <key>SearchSuggestEnabled</key>
4980 "SearchSuggestEnabled": true | false
4986 Install PKCS #11 modules.
4988 **Compatibility:** Firefox 64, Firefox ESR 60.4\
4989 **CCK2 Equivalent:** `certs.devices`\
4990 **Preferences Affected:** N/A
4994 Software\Policies\Mozilla\Firefox\SecurityDevices\NAME_OF_DEVICE = PATH_TO_LIBRARY_FOR_DEVICE
4996 #### Windows (Intune)
4999 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices
5004 <data id="SecurityDevices" value="NAME_OF_DEVICEPATH_TO_LIBRARY_FOR_DEVICE"/>
5009 <key>SecurityDevices</key>
5011 <key>NAME_OF_DEVICE</key>
5012 <string>PATH_TO_LIBRARY_FOR_DEVICE</string>
5021 "SecurityDevices": {
5022 "NAME_OF_DEVICE": "PATH_TO_LIBRARY_FOR_DEVICE"
5028 Show the home button on the toolbar.
5030 Future versions of Firefox will not show the home button by default.
5032 **Compatibility:** Firefox 88, Firefox ESR 78.10\
5033 **CCK2 Equivalent:** N/A\
5034 **Preferences Affected:** N/A
5038 Software\Policies\Mozilla\Firefox\ShowHomeButton = 0x1 | 0x0
5040 #### Windows (Intune)
5043 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ShowHomeButton
5047 <enabled/> or <disabled/>
5052 <key>ShowHomeButton</key>
5060 "ShowHomeButton": true | false
5066 Set and lock the maximum version of TLS.
5068 **Compatibility:** Firefox 66, Firefox ESR 60.6\
5069 **CCK2 Equivalent:** N/A\
5070 **Preferences Affected:** `security.tls.version.max`
5074 Software\Policies\Mozilla\Firefox\SSLVersionMax = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5076 #### Windows (Intune)
5079 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMax
5084 <data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>
5089 <key>SSLVersionMax</key>
5090 <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
5098 "SSLVersionMax": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5104 Set and lock the minimum version of TLS.
5106 **Compatibility:** Firefox 66, Firefox ESR 60.6\
5107 **CCK2 Equivalent:** N/A\
5108 **Preferences Affected:** `security.tls.version.min`
5112 Software\Policies\Mozilla\Firefox\SSLVersionMin = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5114 #### Windows (Intune)
5117 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMin
5122 <data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>
5127 <key>SSLVersionMin</key>
5128 <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
5136 "SSLVersionMin": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5141 Add a menuitem to the help menu for specifying support information.
5143 **Compatibility:** Firefox 68.0.1, Firefox ESR 68.0.1\
5144 **CCK2 Equivalent:** helpMenu\
5145 **Preferences Affected:** N/A
5149 Software\Policies\Mozilla\Firefox\SupportMenu\Title = "Support Menu"
5150 Software\Policies\Mozilla\Firefox\SupportMenu\URL = "http://example.com/support"
5151 Software\Policies\Mozilla\Firefox\SupportMenu\AccessKey = "S"
5153 #### Windows (Intune)
5156 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SupportMenu
5161 <data id="SupportMenuTitle" value="Support Menu"/>
5162 <data id="SupportMenuURL" value="http://example.com/support"/>
5163 <data id="SupportMenuAccessKey" value="S">
5168 <key>SupportMenu</key>
5171 <string>SupportMenu</string>
5173 <string>http://example.com/support</string>
5174 <key>AccessKey</key>
5184 "Title": "Support Menu",
5185 "URL": "http://example.com/support",
5193 Prevent Firefox from messaging the user in certain situations.
5195 `WhatsNew` Remove the "What's New" icon and menuitem.
5197 `ExtensionRecommendations` If false, don't recommend extensions while the user is visiting web pages.
5199 `FeatureRecommendations` IF false, don't recommend browser features.
5201 `UrlbarInterventions` If false, Don't offer Firefox specific suggestions in the URL bar.
5203 `SkipOnboarding` If true, don't show onboarding messages on the new tab page.
5205 **Compatibility:** Firefox 75, Firefox ESR 68.7\
5206 **CCK2 Equivalent:** N/A\
5207 **Preferences Affected:** `browser.messaging-system.whatsNewPanel.enabled`,`browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons`,`browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features`,`browser.aboutwelcome.enabled`
5211 Software\Policies\Mozilla\Firefox\UserMessaging\WhatsNew = 0x1 | 0x0
5212 Software\Policies\Mozilla\Firefox\UserMessaging\ExtensionRecommendations = 0x1 | 0x0
5213 Software\Policies\Mozilla\Firefox\UserMessaging\FeatureRecommendations = 0x1 | 0x0
5214 Software\Policies\Mozilla\Firefox\UserMessaging\UrlbarInterventions = 0x1 | 0x0
5215 Software\Policies\Mozilla\Firefox\UserMessaging\SkipOnboarding = 0x1 | 0x0
5217 #### Windows (Intune)
5220 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_WhatsNew
5221 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_ExtensionRecommendations
5222 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_FeatureRecommendations
5223 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_UrlbarInterventions
5224 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UserMessaging_SkipOnboarding
5228 <enabled/> or <disabled/>
5233 <key>UserMessaging</key>
5237 <key>ExtensionRecommendations</key>
5239 <key>FeatureRecommendations</key>
5241 <key>UrlbarInterventions</key>
5243 <key>SkipOnboarding</key>
5253 "WhatsNew": true | false,
5254 "ExtensionRecommendations": true | false,
5255 "FeatureRecommendations": true | false,
5256 "UrlbarInterventions": true | false
5257 "SkipOnboarding": true | false
5263 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.
5264 The arrays are limited to 1000 entries each.
5266 As of Firefox 83 and Firefox ESR 78.5, file URLs are supported.
5268 **Compatibility:** Firefox 60, Firefox ESR 60\
5269 **CCK2 Equivalent:** N/A\
5270 **Preferences Affected:** N/A
5274 Software\Policies\Mozilla\Firefox\WebsiteFilter\Block\1 = "<all_urls>"
5275 Software\Policies\Mozilla\Firefox\WebsiteFilter\Exceptions\1 = "http://example.org/*"
5277 #### Windows (Intune)
5280 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Block
5285 <data id="WebsiteFilter" value="1<all_urls>"/>
5289 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Exceptions
5294 <data id="WebsiteFilter" value="1http://example.org/*"/>
5299 <key>WebsiteFilter</key>
5303 <string><all_urls></string>
5305 <key>Exceptions</key>
5307 <string>http://example.org/*</string>
5318 "Block": ["<all_urls>"],
5319 "Exceptions": ["http://example.org/*"]