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 Official policy documentation has been moved to https://mozilla.github.io/policy-templates/.
7 I'm maintaining things in the README.md until we can update links in Firefox.
9 Firefox 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`.
11 Unfortunately, JSON files do not support comments, but you can add extra entries to the JSON to use as comments. You will see an error in about:policies, but the policies will still work properly. For example:
17 "SPNEGO": ["mydomain.com", "https://myotherdomain.com"]
19 "Authentication_Comment": "These domains are required for us"
24 | Policy Name | Description
26 | **[`3rdparty`](#3rdparty)** | Set policies that WebExtensions can access via chrome.storage.managed.
27 | **[`AllowedDomainsForApps`](#alloweddomainsforapps)** | Define domains allowed to access Google Workspace.
28 | **[`AppAutoUpdate`](#appautoupdate)** | Enable or disable automatic application update.
29 | **[`AppUpdatePin`](#appupdatepin)** | Prevent Firefox from being updated beyond the specified version.
30 | **[`AppUpdateURL`](#appupdateurl)** | Change the URL for application update.
31 | **[`Authentication`](#authentication)** | Configure sites that support integrated authentication.
32 | **[`AutoLaunchProtocolsFromOrigins`](#autolaunchprotocolsfromorigins)** | Define a list of external protocols that can be used from listed origins without prompting the user.
33 | **[`BackgroundAppUpdate`](#backgroundappupdate)** | Enable or disable the background updater (Windows only).
34 | **[`BlockAboutAddons`](#blockaboutaddons)** | Block access to the Add-ons Manager (about:addons).
35 | **[`BlockAboutConfig`](#blockaboutconfig)** | Block access to about:config.
36 | **[`BlockAboutProfiles`](#blockaboutprofiles)** | Block access to About Profiles (about:profiles).
37 | **[`BlockAboutSupport`](#blockaboutsupport)** | Block access to Troubleshooting Information (about:support).
38 | **[`Bookmarks`](#bookmarks)** | Add bookmarks in either the bookmarks toolbar or menu.
39 | **[`CaptivePortal`](#captiveportal)** | Enable or disable the detection of captive portals.
40 | **[`Certificates`](#certificates)** |
41 | **[`Certificates -> ImportEnterpriseRoots`](#certificates--importenterpriseroots)** | Trust certificates that have been added to the operating system certificate store by a user or administrator.
42 | **[`Certificates -> Install`](#certificates--install)** | Install certificates into the Firefox certificate store.
43 | **[`Containers`](#containers)** | Set policies related to [containers](https://addons.mozilla.org/firefox/addon/multi-account-containers/).
44 | **[`Cookies`](#cookies)** | Configure cookie preferences.
45 | **[`DefaultDownloadDirectory`](#defaultdownloaddirectory)** | Set the default download directory.
46 | **[`DisableAppUpdate`](#disableappupdate)** | Turn off application updates.
47 | **[`DisableBuiltinPDFViewer`](#disablebuiltinpdfviewer)** | Disable the built in PDF viewer.
48 | **[`DisabledCiphers`](#disabledciphers)** | Disable ciphers.
49 | **[`DisableDefaultBrowserAgent`](#disabledefaultbrowseragent)** | Prevent the default browser agent from taking any actions (Windows only).
50 | **[`DisableDeveloperTools`](#disabledevelopertools)** | Remove access to all developer tools.
51 | **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
52 | **[`DisableFirefoxAccounts`](#disablefirefoxaccounts)** | Disable Firefox Accounts integration (Sync).
53 | **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.
54 | **[`DisableFirefoxStudies`](#disablefirefoxstudies)** | Disable Firefox studies (Shield).
55 | **[`DisableForgetButton`](#disableforgetbutton)** | Disable the "Forget" button.
56 | **[`DisableFormHistory`](#disableformhistory)** | Turn off saving information on web forms and the search bar.
57 | **[`DisableMasterPasswordCreation`](#disablemasterpasswordcreation)** | Remove the master password functionality.
58 | **[`DisablePasswordReveal`](#disablepasswordreveal)** | Do not allow passwords to be revealed in saved logins.
59 | **[`DisablePocket`](#disablepocket)** | Remove Pocket in the Firefox UI.
60 | **[`DisablePrivateBrowsing`](#disableprivatebrowsing)** | Remove access to private browsing.
61 | **[`DisableProfileImport`](#disableprofileimport)** | Disables the "Import data from another browser" option in the bookmarks window.
62 | **[`DisableProfileRefresh`](#disableprofilerefresh)** | Disable the Refresh Firefox button on about:support and support.mozilla.org
63 | **[`DisableSafeMode`](#disablesafemode)** | Disable safe mode within the browser.
64 | **[`DisableSecurityBypass`](#disablesecuritybypass)** | Prevent the user from bypassing security in certain cases.
65 | **[`DisableSetDesktopBackground`](#disablesetdesktopbackground)** | Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
66 | **[`DisableSystemAddonUpdate`](#disablesystemaddonupdate)** | Prevent system add-ons from being installed or updated.
67 | **[`DisableTelemetry`](#disabletelemetry)** | DisableTelemetry
68 | **[`DisableThirdPartyModuleBlocking`](#disablethirdpartymoduleblocking)** | Do not allow blocking third-party modules.
69 | **[`DisplayBookmarksToolbar`](#displaybookmarkstoolbar)** | Set the initial state of the bookmarks toolbar.
70 | **[`DisplayBookmarksToolbar (Deprecated)`](#displaybookmarkstoolbar-deprecated)** | Set the initial state of the bookmarks toolbar.
71 | **[`DisplayMenuBar`](#displaymenubar)** | Set the state of the menubar.
72 | **[`DisplayMenuBar (Deprecated)`](#displaymenubar-deprecated)** | Set the initial state of the menubar.
73 | **[`DNSOverHTTPS`](#dnsoverhttps)** | Configure DNS over HTTPS.
74 | **[`DontCheckDefaultBrowser`](#dontcheckdefaultbrowser)** | Don't check if Firefox is the default browser at startup.
75 | **[`DownloadDirectory`](#downloaddirectory)** | Set and lock the download directory.
76 | **[`EnableTrackingProtection`](#enabletrackingprotection)** | Configure tracking protection.
77 | **[`EncryptedMediaExtensions`](#encryptedmediaextensions)** | Enable or disable Encrypted Media Extensions and optionally lock it.
78 | **[`EnterprisePoliciesEnabled`](#enterprisepoliciesenabled)** | Enable policy support on macOS.
79 | **[`ExemptDomainFileTypePairsFromFileTypeDownloadWarnings`](#exemptdomainfiletypepairsfromfiletypedownloadwarnings)** | Disable warnings based on file extension for specific file types on domains.
80 | **[`Extensions`](#extensions)** | Control the installation, uninstallation and locking of extensions.
81 | **[`ExtensionSettings`](#extensionsettings)** | Manage all aspects of extensions.
82 | **[`ExtensionUpdate`](#extensionupdate)** | Control extension updates.
83 | **[`FirefoxHome`](#firefoxhome)** | Customize the Firefox Home page.
84 | **[`GoToIntranetSiteForSingleWordEntryInAddressBar`](#gotointranetsiteforsinglewordentryinaddressbar)** | Force direct intranet site navigation instead of searching when typing single word entries in the address bar.
85 | **[`Handlers`](#handlers)** | Configure default application handlers.
86 | **[`HardwareAcceleration`](#hardwareacceleration)** | Control hardware acceleration.
87 | **[`Homepage`](#homepage)** | Configure the default homepage and how Firefox starts.
88 | **[`InstallAddonsPermission`](#installaddonspermission)** | Configure the default extension install policy as well as origins for extension installs are allowed.
89 | **[`LegacyProfiles`](#legacyprofiles)** | Disable the feature enforcing a separate profile for each installation.
90 | **[`LegacySameSiteCookieBehaviorEnabled`](#legacysamesitecookiebehaviorenabled)** | Enable default legacy SameSite cookie behavior setting.
91 | **[`LegacySameSiteCookieBehaviorEnabledForDomainList`](#legacysamesitecookiebehaviorenabledfordomainlist)** | Revert to legacy SameSite behavior for cookies on specified sites.
92 | **[`LocalFileLinks`](#localfilelinks)** | Enable linking to local files by origin.
93 | **[`ManagedBookmarks`](#managedbookmarks)** | Configures a list of bookmarks managed by an administrator that cannot be changed by the user.
94 | **[`ManualAppUpdateOnly`](#manualappupdateonly)** | Allow manual updates only and do not notify the user about updates.
95 | **[`NetworkPrediction`](#networkprediction)** | Enable or disable network prediction (DNS prefetching).
96 | **[`NewTabPage`](#newtabpage)** | Enable or disable the New Tab page.
97 | **[`NoDefaultBookmarks`](#nodefaultbookmarks)** | Disable the creation of default bookmarks.
98 | **[`OfferToSaveLogins`](#offertosavelogins)** | Control whether or not Firefox offers to save passwords.
99 | **[`OfferToSaveLoginsDefault`](#offertosaveloginsdefault)** | Set the default value for whether or not Firefox offers to save passwords.
100 | **[`OverrideFirstRunPage`](#overridefirstrunpage)** | Override the first run page.
101 | **[`OverridePostUpdatePage`](#overridepostupdatepage)** | Override the upgrade page.
102 | **[`PasswordManagerEnabled`](#passwordmanagerenabled)** | Remove (some) access to the password manager.
103 | **[`PasswordManagerExceptions`](#passwordmanagerexceptions)** | Prevent Firefox from saving passwords for specific sites.
104 | **[`PDFjs`](#pdfjs)** | Disable or configure PDF.js, the built-in PDF viewer.
105 | **[`Permissions`](#permissions)** | Set permissions associated with camera, microphone, location, and notifications.
106 | **[`PictureInPicture`](#pictureinpicture)** | Enable or disable Picture-in-Picture.
107 | **[`PopupBlocking`](#popupblocking)** | Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
108 | **[`Preferences`](#preferences)** | Set and lock preferences.
109 | **[`Preferences (Deprecated)`](#preferences-deprecated)** | Set and lock some preferences.
110 | **[`PrimaryPassword`](#primarypassword)** | Require or prevent using a primary (formerly master) password.
111 | **[`PromptForDownloadLocation`](#promptfordownloadlocation)** | Ask where to save each file before downloading.
112 | **[`Proxy`](#proxy)** | Configure proxy settings.
113 | **[`RequestedLocales`](#requestedlocales)** | Set the the list of requested locales for the application in order of preference.
114 | **[`SanitizeOnShutdown` (All)](#sanitizeonshutdown-all)** | Clear all data on shutdown.
115 | **[`SanitizeOnShutdown` (Selective)](#sanitizeonshutdown-selective)** | Clear data on shutdown.
116 | **[`SearchBar`](#searchbar)** | Set whether or not search bar is displayed.
117 | **[`SearchEngines`](#searchengines-this-policy-is-only-available-on-the-esr)** |
118 | **[`SearchEngines -> Add`](#searchengines--add)** | Add new search engines.
119 | **[`SearchEngines -> Default`](#searchengines--default)** | Set the default search engine.
120 | **[`SearchEngines -> PreventInstalls`](#searchengines--preventinstalls)** | Prevent installing search engines from webpages.
121 | **[`SearchEngines -> Remove`](#searchengines--remove)** | Hide built-in search engines.
122 | **[`SearchSuggestEnabled`](#searchsuggestenabled)** | Enable search suggestions.
123 | **[`SecurityDevices`](#securitydevices)** | Install PKCS #11 modules.
124 | **[`ShowHomeButton`](#showhomebutton)** | Show the home button on the toolbar.
125 | **[`SSLVersionMax`](#sslversionmax)** | Set and lock the maximum version of TLS.
126 | **[`SSLVersionMin`](#sslversionmin)** | Set and lock the minimum version of TLS.
127 | **[`StartDownloadsInTempDirectory`](#startdownloadsintempdirectory)** | Force downloads to start off in a local, temporary location rather than the default download directory.
128 | **[`SupportMenu`](#supportmenu)** | Add a menuitem to the help menu for specifying support information.
129 | **[`UserMessaging`](#usermessaging)** | Don't show certain messages to the user.
130 | **[`UseSystemPrintDialog`](#usesystemprintdialog)** | Print using the system print dialog instead of print preview.
131 | **[`WebsiteFilter`](#websitefilter)** | Block websites from being visited.
132 | **[`WindowsSSO`](#windowssso)** | Allow Windows single sign-on for Microsoft, work, and school accounts.
136 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/).
138 For GPO and Intune, the extension developer should provide an ADMX file.
140 **Compatibility:** Firefox 68\
141 **CCK2 Equivalent:** N/A\
142 **Preferences Affected:** N/A
149 <key>Extensions</key>
151 <key>uBlock0@raymondhill.net</key>
153 <key>adminSettings</key>
155 <key>selectedFilterLists</key>
157 <string>ublock-privacy</string>
158 <string>ublock-badware</string>
159 <string>ublock-filters</string>
160 <string>user-filters</string>
174 "uBlock0@raymondhill.net": {
176 "selectedFilterLists": [
190 ### AllowedDomainsForApps
192 Define domains allowed to access Google Workspace.
194 This policy is based on the [Chrome policy](https://chromeenterprise.google/policies/#AllowedDomainsForApps) of the same name.
196 If this policy is enabled, users can only access Google Workspace using accounts from the specified domains. If you want to allow Gmail, you can add ```consumer_accounts``` to the list.
198 **Compatibility:** Firefox 89, Firefox ESR 78.11\
199 **CCK2 Equivalent:** N/A\
200 **Preferences Affected:** N/A
204 Software\Policies\Mozilla\Firefox\AllowedDomainsForApps = "managedfirefox.com,example.com"
206 #### Windows (Intune)
209 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AllowedDomainsForApps
214 <data id="AllowedDomainsForApps" value="managedfirefox.com,example.com"/>
219 <key>AllowedDomainsForApps</key>
220 <string>managedfirefox.com,example.com</string>
227 "AllowedDomainsForApps": "managedfirefox.com,example.com"
233 Enable or disable **automatic** application update.
235 If set to true, application updates are installed without user approval within Firefox. The operating system might still require approval.
237 If set to false, application updates are downloaded but the user can choose when to install the update.
239 If you have disabled updates via `DisableAppUpdate`, this policy has no effect.
241 **Compatibility:** Firefox 75, Firefox ESR 68.7\
242 **CCK2 Equivalent:** N/A\
243 **Preferences Affected:** `app.update.auto`
247 Software\Policies\Mozilla\Firefox\AppAutoUpdate = 0x1 | 0x0
249 #### Windows (Intune)
252 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppAutoUpdate
256 <enabled/> or <disabled/>
261 <key>AppAutoUpdate</key>
269 "AppAutoUpdate": true | false
275 Prevent Firefox from being updated beyond the specified version.
277 You can specify the any version as ```xx.``` and Firefox will be updated with all minor versions, but will not be updated beyond the major version.
279 You can also specify the version as ```xx.xx``` and Firefox will be updated with all patch versions, but will not be updated beyond the minor version.
281 You should specify a version that exists or is guaranteed to exist. If you specify a version that doesn't end up existing, Firefox will update beyond that version.
283 **Compatibility:** Firefox 102,\
284 **CCK2 Equivalent:** N/A\
285 **Preferences Affected:** N/A
289 Software\Policies\Mozilla\Firefox\AppUpdatePin = "106."
291 #### Windows (Intune)
294 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdatePin
299 <data id="AppUpdatePin" value="106."/>
304 <key>AppUpdatePin</key>
305 <string>106.</string>
312 "AppUpdatePin": "106."
318 Change the URL for application update if you are providing Firefox updates from a custom update server.
320 **Compatibility:** Firefox 62, Firefox ESR 60.2\
321 **CCK2 Equivalent:** N/A\
322 **Preferences Affected:** `app.update.url`
326 Software\Policies\Mozilla\Firefox\AppUpdateURL = "https://yoursite.com"
328 #### Windows (Intune)
331 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdateURL
336 <data id="AppUpdateURL" value="https://yoursite.com"/>
341 <key>AppUpdateURL</key>
342 <string>https://yoursite.com</string>
349 "AppUpdateURL": "https://yoursite.com"
355 Configure sites that support integrated authentication.
357 See [Integrated authentication](https://htmlpreview.github.io/?https://github.com/mdn/archived-content/blob/main/files/en-us/mozilla/integrated_authentication/raw.html) for more information.
359 `PrivateBrowsing` enables integrated authentication in private browsing.
361 **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)\
362 **CCK2 Equivalent:** N/A\
363 **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`
367 Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\1 = "mydomain.com"
368 Software\Policies\Mozilla\Firefox\Authentication\SPNEGO\2 = "https://myotherdomain.com"
369 Software\Policies\Mozilla\Firefox\Authentication\Delegated\1 = "mydomain.com"
370 Software\Policies\Mozilla\Firefox\Authentication\Delegated\2 = "https://myotherdomain.com"
371 Software\Policies\Mozilla\Firefox\Authentication\NTLM\1 = "mydomain.com"
372 Software\Policies\Mozilla\Firefox\Authentication\NTLM\2 = "https://myotherdomain.com"
373 Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\SPNEGO = 0x1 | 0x0
374 Software\Policies\Mozilla\Firefox\Authentication\AllowNonFQDN\NTLM = 0x1 | 0x0
375 Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\SPNEGO = 0x1 | 0x0
376 Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\NTLM = 0x1 | 0x0
377 Software\Policies\Mozilla\Firefox\Authentication\Locked = 0x1 | 0x0
378 Software\Policies\Mozilla\Firefox\Authentication\PrivateBrowsing = 0x1 | 0x0
380 #### Windows (Intune)
383 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_SPNEGO
388 <data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
392 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Delegated
397 <data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
401 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_NTLM
406 <data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
410 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_AllowNonFQDN
415 <data id="Authentication_AllowNonFQDN_NTLM" value="true | false"/>
416 <data id="Authentication_AllowNonFQDN_SPNEGO" value="true | false"/>
420 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Locked
424 <enabled/> or <disabled/>
428 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_PrivateBrowsing
432 <enabled/> or <disabled/>
437 <key>Authentication</key>
441 <string>mydomain.com</string>
442 <string>https://myotherdomain.com</string>
446 <string>mydomain.com</string>
447 <string>https://myotherdomain.com</string>
451 <string>mydomain.com</string>
452 <string>https://myotherdomain.com</string>
454 <key>AllowNonFQDN</key>
461 <key>AllowProxies</key>
470 <key>PrivateBrowsing</key>
480 "SPNEGO": ["mydomain.com", "https://myotherdomain.com"],
481 "Delegated": ["mydomain.com", "https://myotherdomain.com"],
482 "NTLM": ["mydomain.com", "https://myotherdomain.com"],
484 "SPNEGO": true | false,
488 "SPNEGO": true | false,
491 "Locked": true | false,
492 "PrivateBrowsing": true | false
497 ### AutoLaunchProtocolsFromOrigins
498 Define a list of external protocols that can be used from listed origins without prompting the user. The origin is the scheme plus the hostname.
500 The syntax of this policy is exactly the same as the [Chrome AutoLaunchProtocolsFromOrigins policy](https://cloud.google.com/docs/chrome-enterprise/policies/?policy=AutoLaunchProtocolsFromOrigins) except that you can only use valid origins (not just hostnames). This also means that you cannot specify an asterisk for all origins.
526 **Compatibility:** Firefox 90, Firefox ESR 78.12\
527 **CCK2 Equivalent:** N/A\
528 **Preferences Affected:** N/A
531 Software\Policies\Mozilla\Firefox\AutoLaunchProtocolsFromOrigins (REG_MULTI_SZ) =
535 "protocol": "zoommtg",
537 "https://somesite.zoom.us"
542 #### Windows (Intune)
545 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AutoLaunchProtocolsFromOrigins
550 <data id="JSON" value='
553 "protocol": "zoommtg",
555 "https://somesite.zoom.us"
563 <key>AutoLaunchProtocolsFromOrigins</key>
567 <string>zoommtg</string>
568 <key>allowed_origins</key>
570 <string>https://somesite.zoom.us</string>
580 "AutoLaunchProtocolsFromOrigins": [{
581 "protocol": "zoommtg",
583 "https://somesite.zoom.us"
589 ### BackgroundAppUpdate
591 Enable or disable **automatic** application update **in the background**, when the application is not running.
593 If set to true, application updates may be installed (without user approval) in the background, even when the application is not running. The operating system might still require approval.
595 If set to false, the application will not try to install updates when the application is not running.
597 If you have disabled updates via `DisableAppUpdate` or disabled automatic updates via `AppAutoUpdate`, this policy has no effect.
599 **Compatibility:** Firefox 90 (Windows only)\
600 **CCK2 Equivalent:** N/A\
601 **Preferences Affected:** `app.update.background.enabled`
605 Software\Policies\Mozilla\Firefox\BackgroundAppUpdate = 0x1 | 0x0
607 #### Windows (Intune)
610 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BackgroundAppUpdate
614 <enabled/> or <disabled/>
619 <key>BackgroundAppUpdate</key>
627 "BackgroundAppUpdate": true | false
633 Block access to the Add-ons Manager (about:addons).
635 **Compatibility:** Firefox 60, Firefox ESR 60\
636 **CCK2 Equivalent:** `disableAddonsManager`\
637 **Preferences Affected:** N/A
641 Software\Policies\Mozilla\Firefox\BlockAboutAddons = 0x1 | 0x0
643 #### Windows (Intune)
646 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutAddons
650 <enabled/> or <disabled/>
655 <key>BlockAboutAddons</key>
663 "BlockAboutAddons": true | false
669 Block access to about:config.
671 **Compatibility:** Firefox 60, Firefox ESR 60\
672 **CCK2 Equivalent:** `disableAboutConfig`\
673 **Preferences Affected:** N/A
677 Software\Policies\Mozilla\Firefox\BlockAboutConfig = 0x1 | 0x0
679 #### Windows (Intune)
682 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutConfig
686 <enabled/> or <disabled/>
691 <key>BlockAboutConfig</key>
699 "BlockAboutConfig": true | false
703 ### BlockAboutProfiles
705 Block access to About Profiles (about:profiles).
707 **Compatibility:** Firefox 60, Firefox ESR 60\
708 **CCK2 Equivalent:** `disableAboutProfiles`\
709 **Preferences Affected:** N/A
713 Software\Policies\Mozilla\Firefox\BlockAboutProfiles = 0x1 | 0x0
715 #### Windows (Intune)
718 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutProfiles
722 <enabled/> or <disabled/>
727 <key>BlockAboutProfiles</key>
735 "BlockAboutProfiles": true | false
739 ### BlockAboutSupport
741 Block access to Troubleshooting Information (about:support).
743 **Compatibility:** Firefox 60, Firefox ESR 60\
744 **CCK2 Equivalent:** `disableAboutSupport`\
745 **Preferences Affected:** N/A
749 Software\Policies\Mozilla\Firefox\BlockAboutSupport = 0x1 | 0x0
751 #### Windows (Intune)
754 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutSupport
758 <enabled/> or <disabled/>
763 <key>BlockAboutSupport</key>
771 "BlockAboutSupport": true | false
777 Note: [`ManagedBookmarks`](#managedbookmarks) is the new recommended way to add bookmarks. This policy will continue to be supported.
779 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.
781 If you want to clear all bookmarks set with this policy, you can set the value to an empty array (```[]```). This can be on Windows via the new Bookmarks (JSON) policy available with GPO and Intune.
783 **Compatibility:** Firefox 60, Firefox ESR 60\
784 **CCK2 Equivalent:** `bookmarks.toolbar`,`bookmarks.menu`\
785 **Preferences Affected:** N/A
789 Software\Policies\Mozilla\Firefox\Bookmarks\1\Title = "Example"
790 Software\Policies\Mozilla\Firefox\Bookmarks\1\URL = "https://example.com"
791 Software\Policies\Mozilla\Firefox\Bookmarks\1\Favicon = "https://example.com/favicon.ico"
792 Software\Policies\Mozilla\Firefox\Bookmarks\1\Placement = "toolbar" | "menu"
793 Software\Policies\Mozilla\Firefox\Bookmarks\1\Folder = "FolderName"
795 Software\Policies\Mozilla\Firefox\Bookmarks (REG_MULTI_SZ) =
801 #### Windows (Intune)
804 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Bookmarks/Bookmark01
809 <data id="BookmarkTitle" value="Example"/>
810 <data id="BookmarkURL" value="https://example.com"/>
811 <data id="BookmarkFavicon" value="https://example.com/favicon.ico"/>
812 <data id="BookmarkPlacement" value="toolbar | menu"/>
813 <data id="BookmarkFolder" value="FolderName"/>
817 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Bookmarks
822 <data id="JSON" value='[]'/>
831 <string>Example</string>
833 <string>https://example.com</string>
835 <string>https://example.com/favicon.ico</string>
837 <string>toolbar | menu</string>
839 <string>FolderName</string>
851 "URL": "https://example.com",
852 "Favicon": "https://example.com/favicon.ico",
853 "Placement": "toolbar" | "menu",
854 "Folder": "FolderName"
861 Enable or disable the detection of captive portals.
863 **Compatibility:** Firefox 67, Firefox ESR 60.7\
864 **CCK2 Equivalent:** N/A\
865 **Preferences Affected:** `network.captive-portal-service.enabled`
869 Software\Policies\Mozilla\Firefox\CaptivePortal = 0x1 | 0x0
871 #### Windows (Intune)
874 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CaptivePortal
878 <enabled/> or <disabled/>
883 <key>CaptivePortal</key>
891 "CaptivePortal": true | false
897 ### Certificates | ImportEnterpriseRoots
899 Trust certificates that have been added to the operating system certificate store by a user or administrator.
901 Note: This policy only works on Windows and macOS. For Linux discussion, see [bug 1600509](https://bugzilla.mozilla.org/show_bug.cgi?id=1600509).
903 See https://support.mozilla.org/kb/setting-certificate-authorities-firefox for more detail.
905 **Compatibility:** Firefox 60, Firefox ESR 60 (macOS support in Firefox 63, Firefox ESR 68)\
906 **CCK2 Equivalent:** N/A\
907 **Preferences Affected:** `security.enterprise_roots.enabled`
911 Software\Policies\Mozilla\Firefox\Certificates\ImportEnterpriseRoots = 0x1 | 0x0
913 #### Windows (Intune)
916 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_ImportEnterpriseRoots
920 <enabled/> or <disabled/>
925 <key>Certificates</key>
927 <key>ImportEnterpriseRoots</key>
937 "ImportEnterpriseRoots": true | false
942 ### Certificates | Install
944 Install certificates into the Firefox certificate store. If only a filename is specified, Firefox searches for the file in the following locations:
947 - %USERPROFILE%\AppData\Local\Mozilla\Certificates
948 - %USERPROFILE%\AppData\Roaming\Mozilla\Certificates
950 - /Library/Application Support/Mozilla/Certificates
951 - ~/Library/Application Support/Mozilla/Certificates
953 - /usr/lib/mozilla/certificates
954 - /usr/lib64/mozilla/certificates
955 - ~/.mozilla/certificates
957 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.
959 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.
961 Certificates are installed using the trust string `CT,CT,`.
963 Binary (DER) and ASCII (PEM) certificates are both supported.
965 **Compatibility:** Firefox 64, Firefox ESR 64\
966 **CCK2 Equivalent:** `certs.ca`\
967 **Preferences Affected:** N/A
971 Software\Policies\Mozilla\Firefox\Certificates\Install\1 = "cert1.der"
972 Software\Policies\Mozilla\Firefox\Certificates\Install\2 = "C:\Users\username\cert2.pem"
974 #### Windows (Intune)
977 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_Install
982 <data id="Certificates_Install" value="1cert1.der2C:\Users\username\cert2.pem"/>
987 <key>Certificates</key>
991 <string>cert1.der</string>
992 <string>/Users/username/cert2.pem</string>
1002 "Install": ["cert1.der", "/home/username/cert2.pem"]
1008 Set policies related to [containers](https://addons.mozilla.org/firefox/addon/multi-account-containers/).
1010 Currently you can set the initial set of containers.
1012 For each container, you can specify the name, icon, and color.
1014 | Name | Description |
1016 | `name`| Name of container
1017 | `icon` | Can be `fingerprint`, `briefcase`, `dollar`, `cart`, `vacation`, `gift`, `food`, `fruit`, `pet`, `tree`, `chill`, `circle`, `fence`
1018 | `color` | Can be `blue`, `turquoise`, `green`, `yellow`, `orange`, `red`, `pink`, `purple`, `toolbar`
1020 **Compatibility:** Firefox 113\
1021 **CCK2 Equivalent:** N/A\
1022 **Preferences Affected:** N/A
1025 Software\Policies\Mozilla\Firefox\Containers (REG_MULTI_SZ) =
1030 "name": "My container",
1032 "color": "turquoise"
1037 #### Windows (Intune)
1040 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Containers
1045 <data id="JSON" value='
1049 "name": "My container",
1051 "color": "turquoise"
1062 <key>Containers</key>
1066 <string>My container</string>
1068 <string>pet</string>
1070 <string>turquoise</string>
1083 "name": "My container",
1085 "color": "turquoise"
1093 Configure cookie preferences.
1095 `Allow` is a list of origins (not domains) where cookies are always allowed. You must include http or https.
1097 `AllowSession` is a list of origins (not domains) where cookies are only allowed for the current session. You must include http or https.
1099 `Block` is a list of origins (not domains) where cookies are always blocked. You must include http or https.
1101 `Behavior` sets the default behavior for cookies based on the values below.
1103 `BehaviorPrivateBrowsing` sets the default behavior for cookies in private browsing based on the values below.
1105 | Value | Description
1107 | accept | Accept all cookies
1108 | reject-foreign | Reject third party cookies
1109 | reject | Reject all cookies
1110 | limit-foreign | Reject third party cookies for sites you haven't visited
1111 | reject-tracker | Reject cookies for known trackers (default)
1112 | reject-tracker-and-partition-foreign | Reject cookies for known trackers and partition third-party cookies (Total Cookie Protection) (default for private browsing)
1114 `Default` (Deprecated) determines whether cookies are accepted at all.
1116 `AcceptThirdParty` (Deprecated) determines how third-party cookies are handled.
1118 `ExpireAtSessionEnd` determines when cookies expire.
1120 `RejectTracker` (Deprecated) only rejects cookies for trackers.
1122 `Locked` prevents the user from changing cookie preferences.
1124 **Compatibility:** Firefox 60, Firefox ESR 60 (RejectTracker added in Firefox 63, AllowSession added in Firefox 79/78.1, Behavior added in Firefox 95/91.4)\
1125 **CCK2 Equivalent:** N/A\
1126 **Preferences Affected:** `network.cookie.cookieBehavior`, `network.cookie.cookieBehavior.pbmode`, `network.cookie.lifetimePolicy`
1130 Software\Policies\Mozilla\Firefox\Cookies\Allow\1 = "https://example.com"
1131 Software\Policies\Mozilla\Firefox\Cookies\AllowSession\1 = "https://example.edu"
1132 Software\Policies\Mozilla\Firefox\Cookies\Block\1 = "https://example.org"
1133 Software\Policies\Mozilla\Firefox\Cookies\Default = 0x1 | 0x0
1134 Software\Policies\Mozilla\Firefox\Cookies\AcceptThirdParty = "always" | "never" | "from-visited"
1135 Software\Policies\Mozilla\Firefox\Cookies\ExpireAtSessionEnd = 0x1 | 0x0
1136 Software\Policies\Mozilla\Firefox\Cookies\RejectTracker = 0x1 | 0x0
1137 Software\Policies\Mozilla\Firefox\Cookies\Behavior = "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign"
1138 Software\Policies\Mozilla\Firefox\Cookies\BehaviorPrivateBrowsing = "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign"
1139 Software\Policies\Mozilla\Firefox\Cookies\Locked = 0x1 | 0x0
1141 #### Windows (Intune)
1144 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Allow
1149 <data id="Permissions" value="1https://example.com"/>
1153 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AllowSession
1158 <data id="Permissions" value="1https://example.edu"/>
1162 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Block
1167 <data id="Permissions" value="1https://example.org"/>
1171 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Default
1175 <enabled/> or <disabled/>
1179 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AcceptThirdParty
1184 <data id="Cookies_AcceptThirdParty" value="always | never | from-visited"/>
1188 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_ExpireAtSessionEnd
1192 <enabled/> or <disabled/>
1196 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_RejectTracker
1200 <enabled/> or <disabled/>
1204 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Locked
1208 <enabled/> or <disabled/>
1212 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Behavior
1217 <data id="Cookies_Behavior" value="accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign"/>
1221 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_BehaviorPrivateBrowsing
1226 <data id="Cookies_BehaviorPrivateBrowsing" value="accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign"/>
1235 <string>http://example.com</string>
1237 <key>AllowSession</key>
1239 <string>http://example.edu</string>
1243 <string>http://example.org</string>
1247 <key>AcceptThirdParty</key>
1248 <string>always | never | from-visited</string>
1249 <key>ExpireAtSessionEnd</key>
1251 <key>RejectTracker</key>
1256 <string>accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign</string>
1257 <key>BehaviorPrivateBrowsing</key>
1258 <string>accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign</string>
1267 "Allow": ["http://example.org/"],
1268 "AllowSession": ["http://example.edu/"],
1269 "Block": ["http://example.edu/"],
1270 "Default": true | false,
1271 "AcceptThirdParty": "always" | "never" | "from-visited",
1272 "ExpireAtSessionEnd": true | false,
1273 "RejectTracker": true | false,
1274 "Locked": true | false,
1275 "Behavior": "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign",
1276 "BehaviorPrivateBrowsing": "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign",
1281 ### DefaultDownloadDirectory
1282 Set the default download directory.
1284 You can use ${home} for the native home directory.
1286 **Compatibility:** Firefox 68, Firefox ESR 68\
1287 **CCK2 Equivalent:** N/A\
1288 **Preferences Affected:** `browser.download.dir`, `browser.download.folderList`
1292 Software\Policies\Mozilla\Firefox\DefaultDownloadDirectory = "${home}\Downloads"
1294 #### Windows (Intune)
1297 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DefaultDownloadDirectory
1302 <data id="Preferences_String" value="${home}\Downloads"/>
1307 <key>DefaultDownloadDirectory</key>
1308 <string>${home}/Downloads</string>
1311 #### policies.json (macOS and Linux)
1315 "DefaultDownloadDirectory": "${home}/Downloads"
1319 #### policies.json (Windows)
1323 "DefaultDownloadDirectory": "${home}\\Downloads"
1327 ### DisableAppUpdate
1328 Turn off application updates within Firefox.
1330 **Compatibility:** Firefox 60, Firefox ESR 60\
1331 **CCK2 Equivalent:** `disableFirefoxUpdates`\
1332 **Preferences Affected:** N/A
1336 Software\Policies\Mozilla\Firefox\DisableAppUpdate = 0x1 | 0x0
1338 #### Windows (Intune)
1341 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableAppUpdate
1345 <enabled/> or <disabled/>
1350 <key>DisableAppUpdate</key>
1358 "DisableAppUpdate": true | false
1362 ### DisableBuiltinPDFViewer
1363 Disable the built in PDF viewer. PDF files are downloaded and sent externally.
1365 **Compatibility:** Firefox 60, Firefox ESR 60\
1366 **CCK2 Equivalent:** `disablePDFjs`\
1367 **Preferences Affected:** `pdfjs.disabled`
1371 Software\Policies\Mozilla\Firefox\DisableBuiltinPDFViewer = 0x1 | 0x0
1373 #### Windows (Intune)
1376 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableBuiltinPDFViewer
1380 <enabled/> or <disabled/>
1385 <key>DisableBuiltinPDFViewer</key>
1393 "DisableBuiltinPDFViewer": true | false
1398 Disable specific cryptographic ciphers, listed below.
1401 TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
1402 TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
1403 TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
1404 TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
1405 TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
1406 TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
1407 TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
1408 TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
1409 TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
1410 TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
1411 TLS_DHE_RSA_WITH_AES_128_CBC_SHA
1412 TLS_DHE_RSA_WITH_AES_256_CBC_SHA
1413 TLS_RSA_WITH_AES_128_GCM_SHA256
1414 TLS_RSA_WITH_AES_256_GCM_SHA384
1415 TLS_RSA_WITH_AES_128_CBC_SHA
1416 TLS_RSA_WITH_AES_256_CBC_SHA
1417 TLS_RSA_WITH_3DES_EDE_CBC_SHA
1420 **Preferences Affected:** `security.ssl3.ecdhe_rsa_aes_128_gcm_sha256`, `security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256`, `security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256`, `security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256`, `security.ssl3.ecdhe_ecdsa_aes_256_gcm_sha384`, `security.ssl3.ecdhe_rsa_aes_256_gcm_sha384`, `security.ssl3.ecdhe_rsa_aes_128_sha`, `security.ssl3.ecdhe_ecdsa_aes_128_sha`, `security.ssl3.ecdhe_rsa_aes_256_sha`, `security.ssl3.ecdhe_ecdsa_aes_256_sha`, `security.ssl3.dhe_rsa_aes_128_sha`, `security.ssl3.dhe_rsa_aes_256_sha`, `security.ssl3.rsa_aes_128_gcm_sha256`, `security.ssl3.rsa_aes_256_gcm_sha384`, `security.ssl3.rsa_aes_128_sha`, `security.ssl3.rsa_aes_256_sha`, `security.ssl3.deprecated.rsa_des_ede3_sha`
1425 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.
1428 **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, TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA, TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA38, TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256, TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384, and TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 were added in Firefox 97 and Firefox 91.6)\
1429 **CCK2 Equivalent:** N/A\
1430 **Preferences Affected:** N/A
1434 Software\Policies\Mozilla\Firefox\DisabledCiphers\CIPHER_NAME = 0x1 | 0x0
1436 #### Windows (Intune)
1439 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_CIPHER_NAME
1444 <enabled/> or <disabled/>
1449 <key>DisabledCiphers</key>
1451 <key>CIPHER_NAME</key>
1460 "DisabledCiphers": {
1461 "CIPHER_NAME": true | false,
1466 ### DisableDefaultBrowserAgent
1467 Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.
1469 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).
1471 **Compatibility:** Firefox 75, Firefox ESR 68.7 (Windows only)\
1472 **CCK2 Equivalent:** N/A\
1473 **Preferences Affected:** N/A
1477 Software\Policies\Mozilla\Firefox\DisableDefaultBrowserAgent = 0x1 | 0x0
1479 #### Windows (Intune)
1482 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDefaultBrowserAgent
1486 <enabled/> or <disabled/>
1492 "DisableDefaultBrowserAgent": true | false
1496 ### DisableDeveloperTools
1497 Remove access to all developer tools.
1499 **Compatibility:** Firefox 60, Firefox ESR 60\
1500 **CCK2 Equivalent:** `removeDeveloperTools`\
1501 **Preferences Affected:** `devtools.policy.disabled`
1505 Software\Policies\Mozilla\Firefox\DisableDeveloperTools = 0x1 | 0x0`
1507 #### Windows (Intune)
1510 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDeveloperTools
1514 <enabled/> or <disabled/>
1519 <key>DisableDeveloperTools</key>
1527 "DisableDeveloperTools": true | false
1531 ### DisableFeedbackCommands
1532 Disable the menus for reporting sites (Submit Feedback, Report Deceptive Site).
1534 **Compatibility:** Firefox 60, Firefox ESR 60\
1535 **CCK2 Equivalent:** N/A\
1536 **Preferences Affected:** N/A
1540 Software\Policies\Mozilla\Firefox\DisableFeedbackCommands = 0x1 | 0x0
1542 #### Windows (Intune)
1545 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFeedbackCommands
1549 <enabled/> or <disabled/>
1554 <key>DisableFeedbackCommands</key>
1562 "DisableFeedbackCommands": true | false
1566 ### DisableFirefoxAccounts
1567 Disable Firefox Accounts integration (Sync).
1569 **Compatibility:** Firefox 60, Firefox ESR 60\
1570 **CCK2 Equivalent:** `disableSync`\
1571 **Preferences Affected:** `identity.fxaccounts.enabled`
1575 Software\Policies\Mozilla\Firefox\DisableFirefoxAccounts = 0x1 | 0x0
1577 #### Windows (Intune)
1580 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxAccounts
1584 <enabled/> or <disabled/>
1589 <key>DisableFirefoxAccounts</key>
1597 "DisableFirefoxAccounts": true | false
1601 ### DisableFirefoxScreenshots
1602 Remove access to Firefox Screenshots.
1604 **Compatibility:** Firefox 60, Firefox ESR 60\
1605 **CCK2 Equivalent:** N/A\
1606 **Preferences Affected:** `extensions.screenshots.disabled`
1610 Software\Policies\Mozilla\Firefox\DisableFirefoxScreenshots = 0x1 | 0x0
1612 #### Windows (Intune)
1615 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxScreenshots
1619 <enabled/> or <disabled/>
1624 <key>DisableFirefoxScreenshots</key>
1632 "DisableFirefoxScreenshots": true | false
1636 ### DisableFirefoxStudies
1637 Disable Firefox studies (Shield).
1639 **Compatibility:** Firefox 60, Firefox ESR 60\
1640 **CCK2 Equivalent:** N/A\
1641 **Preferences Affected:** N/A
1645 Software\Policies\Mozilla\Firefox\DisableFirefoxStudies = 0x1 | 0x0
1647 #### Windows (Intune)
1650 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxStudies
1654 <enabled/> or <disabled/>
1659 <key>DisableFirefoxStudies</key>
1667 "DisableFirefoxStudies": true | false
1671 ### DisableForgetButton
1672 Disable the "Forget" button.
1674 **Compatibility:** Firefox 60, Firefox ESR 60\
1675 **CCK2 Equivalent:** `disableForget`\
1676 **Preferences Affected:** N/A
1680 Software\Policies\Mozilla\Firefox\DisableForgetButton = 0x1 | 0x0
1682 #### Windows (Intune)
1685 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableForgetButton
1689 <enabled/> or <disabled/>
1694 <key>DisableForgetButton</key>
1702 "DisableForgetButton": true | false
1706 ### DisableFormHistory
1707 Turn off saving information on web forms and the search bar.
1709 **Compatibility:** Firefox 60, Firefox ESR 60\
1710 **CCK2 Equivalent:** `disableFormFill`\
1711 **Preferences Affected:** `browser.formfill.enable`
1715 Software\Policies\Mozilla\Firefox\DisableFormHistory = 0x1 | 0x0
1717 #### Windows (Intune)
1720 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFormHistory
1724 <enabled/> or <disabled/>
1729 <key>DisableFormHistory</key>
1737 "DisableFormHistory": true | false
1741 ### DisableMasterPasswordCreation
1742 Remove the master password functionality.
1744 If this value is true, it works the same as setting [`PrimaryPassword`](#primarypassword) to false and removes the primary password functionality.
1746 If both `DisableMasterPasswordCreation` and `PrimaryPassword` are used, `DisableMasterPasswordCreation` takes precedent.
1748 **Compatibility:** Firefox 60, Firefox ESR 60\
1749 **CCK2 Equivalent:** `noMasterPassword`\
1750 **Preferences Affected:** N/A
1754 Software\Policies\Mozilla\Firefox\DisableMasterPasswordCreation = 0x1 | 0x0
1756 #### Windows (Intune)
1759 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableMasterPasswordCreation
1763 <enabled/> or <disabled/>
1768 <key>DisableMasterPasswordCreation</key>
1776 "DisableMasterPasswordCreation": true | false
1780 ### DisablePasswordReveal
1781 Do not allow passwords to be shown in saved logins
1783 **Compatibility:** Firefox 71, Firefox ESR 68.3\
1784 **CCK2 Equivalent:** N/A
1785 **Preferences Affected:** N/A
1789 Software\Policies\Mozilla\Firefox\DisablePasswordReveal = 0x1 | 0x0
1791 #### Windows (Intune)
1794 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePasswordReveal
1798 <enabled/> or <disabled/>
1803 <key>DisablePasswordReveal</key>
1811 "DisablePasswordReveal": true | false
1816 Remove Pocket in the Firefox UI. It does not remove it from the new tab page.
1818 **Compatibility:** Firefox 60, Firefox ESR 60\
1819 **CCK2 Equivalent:** `disablePocket`\
1820 **Preferences Affected:** `extensions.pocket.enabled`
1824 Software\Policies\Mozilla\Firefox\DisablePocket = 0x1 | 0x0
1826 #### Windows (Intune)
1829 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePocket
1833 <enabled/> or <disabled/>
1838 <key>DisablePocket</key>
1846 "DisablePocket": true | false
1850 ### DisablePrivateBrowsing
1851 Remove access to private browsing.
1853 **Compatibility:** Firefox 60, Firefox ESR 60\
1854 **CCK2 Equivalent:** `disablePrivateBrowsing`\
1855 **Preferences Affected:** N/A
1859 Software\Policies\Mozilla\Firefox\DisablePrivateBrowsing = 0x1 | 0x0
1861 #### Windows (Intune)
1864 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePrivateBrowsing
1868 <enabled/> or <disabled/>
1873 <key>DisablePrivateBrowsing</key>
1881 "DisablePrivateBrowsing": true | false
1885 ### DisableProfileImport
1886 Disables the "Import data from another browser" option in the bookmarks window.
1888 **Compatibility:** Firefox 60, Firefox ESR 60\
1889 **CCK2 Equivalent:** N/A\
1890 **Preferences Affected:** N/A
1894 Software\Policies\Mozilla\Firefox\DisableProfileImport = 0x1 | 0x0
1896 #### Windows (Intune)
1899 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileImport
1903 <enabled/> or <disabled/>
1908 <key>DisableProfileImport</key>
1916 "DisableProfileImport": true | false
1920 ### DisableProfileRefresh
1921 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.
1923 **Compatibility:** Firefox 60, Firefox ESR 60\
1924 **CCK2 Equivalent:** `disableResetFirefox`\
1925 **Preferences Affected:** `browser.disableResetPrompt`
1929 Software\Policies\Mozilla\Firefox\DisableProfileRefresh = 0x1 | 0x0
1931 #### Windows (Intune)
1934 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileRefresh
1938 <enabled/> or <disabled/>
1943 <key>DisableProfileRefresh</key>
1951 "DisableProfileRefresh": true | false
1956 Disable safe mode within the browser.
1958 On Windows, this disables safe mode via the command line as well.
1960 **Compatibility:** Firefox 60, Firefox ESR 60 (Windows, macOS)\
1961 **CCK2 Equivalent:** `disableSafeMode`\
1962 **Preferences Affected:** N/A
1966 Software\Policies\Mozilla\Firefox\DisableSafeMode = 0x1 | 0x0
1968 #### Windows (Intune)
1971 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSafeMode
1975 <enabled/> or <disabled/>
1980 <key>DisableSafeMode</key>
1988 "DisableSafeMode": true | false
1992 ### DisableSecurityBypass
1993 Prevent the user from bypassing security in certain cases.
1995 `InvalidCertificate` prevents adding an exception when an invalid certificate is shown.
1997 `SafeBrowsing` prevents selecting "ignore the risk" and visiting a harmful site anyway.
1999 **Compatibility:** Firefox 60, Firefox ESR 60\
2000 **CCK2 Equivalent:** N/A\
2001 **Preferences Affected:** `security.certerror.hideAddException`, `browser.safebrowsing.allowOverride`
2005 Software\Policies\Mozilla\Firefox\DisableSecurityBypass\InvalidCertificate = 0x1 | 0x0
2006 Software\Policies\Mozilla\Firefox\DisableSecurityBypass\SafeBrowsing = 0x1 | 0x0
2008 #### Windows (Intune)
2011 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_InvalidCertificate
2015 <enabled/> or <disabled/>
2019 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_SafeBrowsing
2023 <enabled/> or <disabled/>
2029 <key>DisableSecurityBypass</key>
2031 <key>InvalidCertificate</key>
2033 <key>SafeBrowsing</key>
2042 "DisableSecurityBypass": {
2043 "InvalidCertificate": true | false,
2044 "SafeBrowsing": true | false
2049 ### DisableSetDesktopBackground
2050 Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
2052 **Compatibility:** Firefox 60, Firefox ESR 60\
2053 **CCK2 Equivalent:** `removeSetDesktopBackground`\
2054 **Preferences Affected:** N/A
2058 Software\Policies\Mozilla\Firefox\DisableSetDesktopBackground = 0x1 | 0x0
2060 #### Windows (Intune)
2063 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSetDesktopBackground
2067 <enabled/> or <disabled/>
2072 <key>DisableSetDesktopBackground</key>
2080 "DisableSetDesktopBackground": true | false
2084 ### DisableSystemAddonUpdate
2085 Prevent system add-ons from being installed or updated.
2087 **Compatibility:** Firefox 60, Firefox ESR 60\
2088 **CCK2 Equivalent:** N/A\
2089 **Preferences Affected:** N/A
2093 Software\Policies\Mozilla\Firefox\DisableSystemAddonUpdate = 0x1 | 0x0
2095 #### Windows (Intune)
2098 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSystemAddonUpdate
2102 <enabled/> or <disabled/>
2107 <key>DisableSystemAddonUpdate</key>
2115 "DisableSystemAddonUpdate": true | false
2119 ### DisableTelemetry
2120 Prevent the upload of telemetry data.
2122 As of Firefox 83 and Firefox ESR 78.5, local storage of telemetry data is disabled as well.
2124 Mozilla recommends that you do not disable telemetry. Information collected through telemetry helps us build a better product for businesses like yours.
2126 **Compatibility:** Firefox 60, Firefox ESR 60\
2127 **CCK2 Equivalent:** `disableTelemetry`\
2128 **Preferences Affected:** `datareporting.healthreport.uploadEnabled`, `datareporting.policy.dataSubmissionEnabled`, `toolkit.telemetry.archive.enabled`
2132 Software\Policies\Mozilla\Firefox\DisableTelemetry = 0x1 | 0x0
2134 #### Windows (Intune)
2137 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableTelemetry
2141 <enabled/> or <disabled/>
2146 <key>DisableTelemetry</key>
2154 "DisableTelemetry": true | false
2158 ### DisableThirdPartyModuleBlocking
2159 Do not allow blocking third-party modules from the `about:third-party` page.
2161 This policy only works on Windows through GPO (not policies.json).
2163 **Compatibility:** Firefox 110 (Windows only, GPO only)\
2164 **CCK2 Equivalent:** N/A\
2165 **Preferences Affected:** N/A
2169 Software\Policies\Mozilla\Firefox\DisableThirdPartyModuleBlocking = = 0x1 | 0x0
2171 #### Windows (Intune)
2174 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableThirdPartyModuleBlocking
2178 <enabled/> or <disabled/>
2180 ### DisplayBookmarksToolbar
2181 Set the initial state of the bookmarks toolbar. A user can still change how it is displayed.
2183 `always` means the bookmarks toolbar is always shown.
2185 `never` means the bookmarks toolbar is not shown.
2187 `newtab` means the bookmarks toolbar is only shown on the new tab page.
2189 **Compatibility:** Firefox 109, Firefox ESR 102.7\
2190 **CCK2 Equivalent:** N/A\
2191 **Preferences Affected:** N/A
2195 Software\Policies\Mozilla\Firefox\DisplayBookmarksToolbar = "always", "never", "newtab"
2197 #### Windows (Intune)
2200 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayBookmarksToolbar_Enum
2205 <data id="DisplayBookmarksToolbar" value="always | never | newtab"/>
2210 <key>DisplayBookmarksToolbar</key>
2211 <string>always | never | newtab</string>
2218 "DisplayBookmarksToolbar": "always" | "never" | "newtab"
2222 ### DisplayBookmarksToolbar (Deprecated)
2223 Set the initial state of the bookmarks toolbar. A user can still hide it and it will stay hidden.
2225 **Compatibility:** Firefox 60, Firefox ESR 60\
2226 **CCK2 Equivalent:** `displayBookmarksToolbar`\
2227 **Preferences Affected:** N/A
2231 Software\Policies\Mozilla\Firefox\DisplayBookmarksToolbar = 0x1 | 0x0
2233 #### Windows (Intune)
2236 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayBookmarksToolbar
2240 <enabled/> or <disabled/>
2245 <key>DisplayBookmarksToolbar</key>
2253 "DisplayBookmarksToolbar": true | false
2258 Set the state of the menubar.
2260 `always` means the menubar is shown and cannot be hidden.
2262 `never` means the menubar is hidden and cannot be shown.
2264 `default-on` means the menubar is on by default but can be hidden.
2266 `default-off` means the menubar is off by default but can be shown.
2268 **Compatibility:** Firefox 73, Firefox ESR 68.5 (Windows, some Linux)\
2269 **CCK2 Equivalent:** `displayMenuBar`\
2270 **Preferences Affected:** N/A
2274 Software\Policies\Mozilla\Firefox\DisplayMenuBar = "always", "never", "default-on", "default-off"
2276 #### Windows (Intune)
2279 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayMenuBar_Enum
2284 <data id="DisplayMenuBar" value="always | never | default-on | default-off"/>
2289 <key>DisplayMenuBar</key>
2290 <string>always | never | default-on | default-off</string>
2297 "DisplayMenuBar": "always", "never", "default-on", "default-off"
2301 ### DisplayMenuBar (Deprecated)
2302 Set the initial state of the menubar. A user can still hide it and it will stay hidden.
2304 **Compatibility:** Firefox 60, Firefox ESR 60 (Windows, some Linux)\
2305 **CCK2 Equivalent:** `displayMenuBar`\
2306 **Preferences Affected:** N/A
2310 Software\Policies\Mozilla\Firefox\DisplayMenuBar = 0x1 | 0x0
2315 <key>DisplayMenuBar</key>
2323 "DisplayMenuBar": true | false
2328 Configure DNS over HTTPS.
2330 `Enabled` determines whether DNS over HTTPS is enabled
2332 `ProviderURL` is a URL to another provider.
2334 `Locked` prevents the user from changing DNS over HTTPS preferences.
2336 `ExcludedDomains` excludes domains from DNS over HTTPS.
2338 **Compatibility:** Firefox 63, Firefox ESR 68 (ExcludedDomains added in 75/68.7)\
2339 **CCK2 Equivalent:** N/A\
2340 **Preferences Affected:** `network.trr.mode`, `network.trr.uri`
2344 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Enabled = 0x1 | 0x0
2345 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
2346 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Locked = 0x1 | 0x0
2347 Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ExcludedDomains\1 = "example.com"
2349 #### Windows (Intune)
2352 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Enabled
2356 <enabled/> or <disabled/>
2360 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ProviderURL
2365 <data id="String" value="URL_TO_ALTERNATE_PROVIDER"/>
2369 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Locked
2373 <enabled/> or <disabled/>
2377 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ExcludedDomains
2382 <data id="List" value="1example.com"/>
2387 <key>DNSOverHTTPS</key>
2391 <key>ProviderURL</key>
2392 <string>URL_TO_ALTERNATE_PROVIDER</string>
2395 <key>ExcludedDomains</key>
2397 <string>example.com</string>
2407 "Enabled": true | false,
2408 "ProviderURL": "URL_TO_ALTERNATE_PROVIDER",
2409 "Locked": true | false,
2410 "ExcludedDomains": ["example.com"]
2415 ### DontCheckDefaultBrowser
2416 Don't check if Firefox is the default browser at startup.
2418 **Compatibility:** Firefox 60, Firefox ESR 60\
2419 **CCK2 Equivalent:** `dontCheckDefaultBrowser`\
2420 **Preferences Affected:** `browser.shell.checkDefaultBrowser`
2424 Software\Policies\Mozilla\Firefox\DontCheckDefaultBrowser = 0x1 | 0x0
2426 #### Windows (Intune)
2429 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DontCheckDefaultBrowser
2433 <enabled/> or <disabled/>
2438 <key>DontCheckDefaultBrowser</key>
2446 "DontCheckDefaultBrowser": true | false
2450 ### DownloadDirectory
2451 Set and lock the download directory.
2453 You can use ${home} for the native home directory.
2455 **Compatibility:** Firefox 68, Firefox ESR 68\
2456 **CCK2 Equivalent:** N/A\
2457 **Preferences Affected:** `browser.download.dir`, `browser.download.folderList`, `browser.download.useDownloadDir`
2461 Software\Policies\Mozilla\Firefox\DownloadDirectory = "${home}\Downloads"
2463 #### Windows (Intune)
2466 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DownloadDirectory
2471 <data id="Preferences_String" value="${home}\Downloads"/>
2476 <key>DownloadDirectory</key>
2477 <string>${home}/Downloads</string>
2480 #### policies.json (macOS and Linux)
2484 "DownloadDirectory": "${home}/Downloads"
2487 #### policies.json (Windows)
2491 "DownloadDirectory": "${home}\\Downloads"
2494 ### EnableTrackingProtection
2495 Configure tracking protection.
2497 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.
2499 If `Value` is set to false, tracking protection is disabled and locked in both the regular browser and private browsing.
2501 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.
2503 If `Cryptomining` is set to true, cryptomining scripts on websites are blocked.
2505 If `Fingerprinting` is set to true, fingerprinting scripts on websites are blocked.
2507 If `EmailTracking` is set to true, hidden email tracking pixels and scripts on websites are blocked. (Firefox 112)
2509 `Exceptions` are origins for which tracking protection is not enabled.
2511 **Compatibility:** Firefox 60, Firefox ESR 60 (Cryptomining and Fingerprinting added in 70/68.2, Exceptions added in 73/68.5)\
2512 **CCK2 Equivalent:** N/A\
2513 **Preferences Affected:** `privacy.trackingprotection.enabled`, `privacy.trackingprotection.pbmode.enabled`, `privacy.trackingprotection.cryptomining.enabled`, `privacy.trackingprotection.fingerprinting.enabled`
2517 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Value = 0x1 | 0x0
2518 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Locked = 0x1 | 0x0
2519 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Cryptomining = 0x1 | 0x0
2520 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Fingerprinting = 0x1 | 0x0
2521 Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Exceptions\1 = "https://example.com"
2523 #### Windows (Intune)
2526 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/A_TrackingProtection_Value
2530 <enabled/> or <disabled/>
2534 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/B_TrackingProtection_Cryptomining
2538 <enabled/> or <disabled/>
2542 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/C_TrackingProtection_Fingerprinting
2546 <enabled/> or <disabled/>
2550 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/D_TrackingProtection_Exceptions
2555 <data id="TrackingProtection_Exceptions" value="1https://example.com"/>
2559 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/E_TrackingProtection_Locked
2563 <enabled/> or <disabled/>
2568 <key>EnableTrackingProtection</key>
2574 <key>Cryptomining</key>
2576 <key>Fingerprinting</key>
2578 <key>Exceptions</key>
2580 <string>https://example.com</string>
2589 "EnableTrackingProtection": {
2590 "Value": true | false,
2591 "Locked": true | false,
2592 "Cryptomining": true | false,
2593 "Fingerprinting": true | false,
2594 "Exceptions": ["https://example.com"]
2599 ### EncryptedMediaExtensions
2600 Enable or disable Encrypted Media Extensions and optionally lock it.
2602 If `Enabled` is set to false, encrypted media extensions (like Widevine) are not downloaded by Firefox unless the user consents to installing them.
2604 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.
2606 **Compatibility:** Firefox 77, Firefox ESR 68.9\
2607 **CCK2 Equivalent:** N/A\
2608 **Preferences Affected:** `media.eme.enabled`
2612 Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Enabled = 0x1 | 0x0
2613 Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Locked = 0x1 | 0x0
2615 #### Windows (Intune)
2618 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Enabled
2619 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Locked
2623 <enabled/>or <disabled/>
2628 <key>EncryptedMediaExtensions</key>
2641 "EncryptedMediaExtensions": {
2642 "Enabled": true | false,
2643 "Locked": true | false
2648 ### EnterprisePoliciesEnabled
2649 Enable policy support on macOS.
2651 **Compatibility:** Firefox 63, Firefox ESR 60.3 (macOS only)\
2652 **CCK2 Equivalent:** N/A\
2653 **Preferences Affected:** N/A
2658 <key>EnterprisePoliciesEnabled</key>
2662 ### ExemptDomainFileTypePairsFromFileTypeDownloadWarnings
2664 Disable warnings based on file extension for specific file types on domains.
2666 This policy is based on the [Chrome policy](https://chromeenterprise.google/policies/#ExemptDomainFileTypePairsFromFileTypeDownloadWarnings) of the same name.
2668 Important: The documentation for the policy for both Edge and Chrome is incorrect. The ```domains``` value must be a domain, not a URL pattern. Also, we do not support using ```*``` to mean all domains.
2670 **Compatibility:** Firefox 102\
2671 **CCK2 Equivalent:** N/A\
2672 **Preferences Affected:** N/A
2675 Software\Policies\Mozilla\Firefox\ExemptDomainFileTypePairsFromFileTypeDownloadWarnings (REG_MULTI_SZ) =
2679 "file_extension": "jnlp",
2680 "domains": ["example.com"]
2684 #### Windows (Intune)
2687 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ExemptDomainFileTypePairsFromFileTypeDownloadWarnings
2692 <data id="JSON" value='
2695 "file_extension": "jnlp",
2696 "domains": ["example.com"]
2704 <key>ExemptDomainFileTypePairsFromFileTypeDownloadWarnings</key>
2707 <key>file_extension</key>
2708 <string>jnlp</string>
2711 <string>example.com</string>
2721 "ExemptDomainFileTypePairsFromFileTypeDownloadWarnings": [{
2722 "file_extension": "jnlp",
2723 "domains": ["example.com"]
2729 Control the installation, uninstallation and locking of extensions.
2731 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.
2733 `Install` is a list of URLs or native paths for extensions to be installed.
2735 `Uninstall` is a list of extension IDs that should be uninstalled if found.
2737 `Locked` is a list of extension IDs that the user cannot disable or uninstall.
2739 **Compatibility:** Firefox 60, Firefox ESR 60\
2740 **CCK2 Equivalent:** `addons`\
2741 **Preferences Affected:** N/A
2745 Software\Policies\Mozilla\Firefox\Extensions\Install\1 = "https://addons.mozilla.org/firefox/downloads/somefile.xpi"
2746 Software\Policies\Mozilla\Firefox\Extensions\Install\2 = "//path/to/xpi"
2747 Software\Policies\Mozilla\Firefox\Extensions\Uninstall\1 = "bad_addon_id@mozilla.org"
2748 Software\Policies\Mozilla\Firefox\Extensions\Locked\1 = "addon_id@mozilla.org"
2750 #### Windows (Intune)
2753 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Install
2758 <data id="Extensions" value="1https://addons.mozilla.org/firefox/downloads/somefile.xpi2//path/to/xpi"/>
2762 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Uninstall
2767 <data id="Extensions" value="1bad_addon_id@mozilla.org"/>
2771 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Locked
2776 <data id="Extensions" value="1addon_id@mozilla.org"/>
2781 <key>Extensions</key>
2785 <string>https://addons.mozilla.org/firefox/downloads/somefile.xpi</string>
2786 <string>//path/to/xpi</string>
2788 <key>Uninstall</key>
2790 <string>bad_addon_id@mozilla.org</string>
2794 <string>addon_id@mozilla.org</string>
2804 "Install": ["https://addons.mozilla.org/firefox/downloads/somefile.xpi", "//path/to/xpi"],
2805 "Uninstall": ["bad_addon_id@mozilla.org"],
2806 "Locked": ["addon_id@mozilla.org"]
2811 ### ExtensionSettings
2812 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.
2814 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.
2816 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).
2818 The configuration for each extension is another dictionary that can contain the fields documented below.
2820 | Name | Description |
2822 | `installation_mode` | Maps to a string indicating the installation mode for the extension. The valid strings are `allowed`,`blocked`,`force_installed`, and `normal_installed`.
2823 | `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.
2824 | `blocked`| Blocks installation of the extension and removes it from the device if already installed.
2825 | `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.
2826 | `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.
2827 | `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.
2828 | `install_sources` | A list of sources from which installing extensions is allowed using URL match patterns. **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.
2829 | `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.
2830 | `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.
2831 | `restricted_domains` | An array of domains on which content scripts can't be run. This setting can be used only for the default configuration.
2832 | `updates_disabled` | (Firefox 89, Firefox ESR 78.11) Boolean that indicates whether or not to disable automatic updates for an individual extension.
2834 **Compatibility:** Firefox 69, Firefox ESR 68.1 (As of Firefox 85, Firefox ESR 78.7, installing a theme makes it the default.)\
2835 **CCK2 Equivalent:** N/A\
2836 **Preferences Affected:** N/A
2839 Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =
2843 "blocked_install_message": "Custom error message.",
2844 "install_sources": ["https://yourwebsite.com/*"],
2845 "installation_mode": "blocked",
2846 "allowed_types": ["extension"]
2848 "uBlock0@raymondhill.net": {
2849 "installation_mode": "force_installed",
2850 "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2852 "https-everywhere@eff.org": {
2853 "installation_mode": "allowed"
2857 #### Windows (Intune)
2860 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings
2865 <data id="ExtensionSettings" value='
2868 "blocked_install_message": "Custom error message.",
2869 "install_sources": ["https://yourwebsite.com/*"],
2870 "installation_mode": "blocked",
2871 "allowed_types": ["extension"]
2873 "uBlock0@raymondhill.net": {
2874 "installation_mode": "force_installed",
2875 "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2877 "https-everywhere@eff.org": {
2878 "installation_mode": "allowed"
2885 <key>ExtensionSettings</key>
2889 <key>blocked_install_message</key>
2890 <string>Custom error message.</string>
2891 <key>install_sources</key>
2893 <string>"https://yourwebsite.com/*"</string>
2895 <key>installation_mode</key>
2896 <string>blocked</string>
2897 <key>allowed_types</key>
2899 <string>extension</string>
2902 <key>uBlock0@raymondhill.net</key>
2904 <key>installation_mode</key>
2905 <string>force_installed</string>
2906 <key>install_url</key>
2907 <string>https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi</string>
2909 <key>https-everywhere@eff.org</key>
2911 <key>installation_mode</key>
2912 <string>allowed</string>
2921 "ExtensionSettings": {
2923 "blocked_install_message": "Custom error message.",
2924 "install_sources": ["https://yourwebsite.com/*"],
2925 "installation_mode": "blocked",
2926 "allowed_types": ["extension"]
2928 "uBlock0@raymondhill.net": {
2929 "installation_mode": "force_installed",
2930 "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
2932 "https-everywhere@eff.org": {
2933 "installation_mode": "allowed"
2940 Control extension updates.
2942 **Compatibility:** Firefox 67, Firefox ESR 60.7\
2943 **CCK2 Equivalent:** N/A\
2944 **Preferences Affected:** `extensions.update.enabled`
2948 Software\Policies\Mozilla\Firefox\ExtensionUpdate = 0x1 | 0x0
2950 #### Windows (Intune)
2953 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionUpdate
2957 <enabled/> or <disabled/>
2962 <key>ExtensionUpdate</key>
2970 "ExtensionUpdate": true | false
2975 Customize the Firefox Home page.
2977 **Compatibility:** Firefox 68, Firefox ESR 68 (SponsoredTopSites and SponsoredPocket were added in Firefox 95, Firefox ESR 91.4)
2978 **CCK2 Equivalent:** N/A\
2979 **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`, `browser.newtabpage.activity-stream.showSponsoredTopSites`, `browser.newtabpage.activity-stream.showSponsored`
2983 Software\Policies\Mozilla\Firefox\FirefoxHome\Search = 0x1 | 0x0
2984 Software\Policies\Mozilla\Firefox\FirefoxHome\TopSites = 0x1 | 0x0
2985 Software\Policies\Mozilla\Firefox\FirefoxHome\SponsoredTopSites = 0x1 | 0x0
2986 Software\Policies\Mozilla\Firefox\FirefoxHome\Highlights = 0x1 | 0x0
2987 Software\Policies\Mozilla\Firefox\FirefoxHome\Pocket = 0x1 | 0x0
2988 Software\Policies\Mozilla\Firefox\FirefoxHome\SponsoredPocket = 0x1 | 0x0
2989 Software\Policies\Mozilla\Firefox\FirefoxHome\Snippets = 0x1 | 0x0
2990 Software\Policies\Mozilla\Firefox\FirefoxHome\Locked = 0x1 | 0x0
2992 #### Windows (Intune)
2995 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CustomizeFirefoxHome
3000 <data id="FirefoxHome_Search" value="true | false"/>
3001 <data id="FirefoxHome_TopSites" value="true | false"/>
3002 <data id="FirefoxHome_SponsoredTopSites" value="true | false"/>
3003 <data id="FirefoxHome_Highlights" value="true | false"/>
3004 <data id="FirefoxHome_Pocket" value="true | false"/>
3005 <data id="FirefoxHome_SponsoredPocket" value="true | false"/>
3006 <data id="FirefoxHome_Snippets" value="true | false"/>
3007 <data id="FirefoxHome_Locked" value="true | false"/>
3012 <key>FirefoxHome</key>
3018 <key>SponsoredTopSites</key>
3020 <key>Highlights</key>
3024 <key>SponsoredPocket</key>
3038 "Search": true | false,
3039 "TopSites": true | false,
3040 "SponsoredTopSites": true | false,
3041 "Highlights": true | false,
3042 "Pocket": true | false,
3043 "SponsoredPocket": true | false,
3044 "Snippets": true | false,
3045 "Locked": true | false
3050 ### GoToIntranetSiteForSingleWordEntryInAddressBar
3051 Whether to always go through the DNS server before sending a single word search string to a search engine.
3053 If the site exists, it will navigate to the website. If the intranet responds with a 404, the page will show a 404. If the intranet does not respond, the browser will attempt a search.
3055 The second result in the URL bar will be a search result to allow users to conduct a web search exactly as it was entered.
3057 If instead you would like to enable the ability to have your domain appear as a valid URL and to disallow the browser from ever searching that term using the first result that matches it, add the pref `browser.fixup.domainwhitelist.YOUR_DOMAIN` (where `YOUR_DOMAIN` is the name of the domain you'd like to add), and set the pref to `true`. The URL bar will then suggest `YOUR_DOMAIN` when the user fully types `YOUR_DOMAIN`. If the user attempts to load that domain and it fails to load, it will show an "Unable to connect" error page.
3059 You can also whitelist a domain suffix that is not part of the [Public Suffix List](https://publicsuffix.org/) by adding the pref `browser.fixup.domainsuffixwhitelist.YOUR_DOMAIN_SUFFIX` with a value of `true`.
3061 Additionally, if you want users to see a "Did you mean to go to 'YOUR_DOMAIN'" prompt below the URL bar if they land on a search results page instead of an intranet domain that provides a response, set the pref `browser.urlbar.dnsResolveSingleWordsAfterSearch` to `1`. Enabling this will cause the browser to commit a DNS check after every single word search. If the browser receives a response from the intranet, a prompt will ask the user if they'd like to instead navigate to `YOUR_DOMAIN`. If the user presses the **yes** button, `browser.fixup.domainwhitelist.YOUR_DOMAIN` will be set to `true`.
3063 **Compatibility:** Firefox 104, Firefox ESR 102.2\
3064 **CCK2 Equivalent:** `N/A`\
3065 **Preferences Affected:** `browser.fixup.dns_first_for_single_words`
3069 Software\Policies\Mozilla\Firefox\GoToIntranetSiteForSingleWordEntryInAddressBar = 0x1 | 0x0
3071 #### Windows (Intune)
3074 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/GoToIntranetSiteForSingleWordEntryInAddressBar
3078 <enabled/> or <disabled/>
3083 <key>GoToIntranetSiteForSingleWordEntryInAddressBar</key>
3091 "GoToIntranetSiteForSingleWordEntryInAddressBar": true | false
3096 Configure default application handlers. This policy is based on the internal format of `handlers.json`.
3098 You can configure handlers based on a mime type (`mimeTypes`), a file's extension (`extensions`), or a protocol (`schemes`).
3100 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.
3102 | Name | Description |
3104 | `action`| Can be either `saveToDisk`, `useHelperApp`, `useSystemDefault`.
3105 | `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.
3106 | `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.
3107 | `name` | The display name of the handler (might not be used).
3108 | `path`| The native path to the executable to be used.
3109 | `uriTemplate`| A url to a web based application handler. The URL must be https and contain a %s to be used for substitution.
3111 **Compatibility:** Firefox 78, Firefox ESR 78\
3112 **CCK2 Equivalent:** N/A\
3113 **Preferences Affected:** N/A
3116 Software\Policies\Mozilla\Firefox\Handlers (REG_MULTI_SZ) =
3120 "application/msword": {
3121 "action": "useSystemDefault",
3127 "action": "useHelperApp",
3128 "ask": true | false,
3131 "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
3137 "action": "useHelperApp",
3138 "ask": true | false,
3140 "name": "Adobe Acrobat",
3141 "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
3147 #### Windows (Intune)
3150 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Handlers
3155 <data id="Handlers" value='
3158 "application/msword": {
3159 "action": "useSystemDefault",
3165 "action": "useHelperApp",
3166 "ask": true | false,
3169 "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
3175 "action": "useHelperApp",
3176 "ask": true | false,
3178 "name": "Adobe Acrobat",
3179 "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
3191 <key>mimeTypes</key>
3193 <key>application/msword</key>
3196 <string>useSystemDefault</string>
3206 <string>useHelperApp</string>
3213 <string>Gmail</string>
3214 <key>uriTemplate</key>
3215 <string>https://mail.google.com/mail/?extsrc=mailto&url=%s</string>
3220 <key>extensions</key>
3225 <string>useHelperApp</string>
3232 <string>Adobe Acrobat</string>
3234 <string>/System/Applications/Preview.app</string>
3248 "application/msword": {
3249 "action": "useSystemDefault",
3255 "action": "useHelperApp",
3256 "ask": true | false,
3259 "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
3265 "action": "useHelperApp",
3266 "ask": true | false,
3268 "name": "Adobe Acrobat",
3269 "path": "/usr/bin/acroread"
3277 ### HardwareAcceleration
3278 Control hardware acceleration.
3280 **Compatibility:** Firefox 60, Firefox ESR 60\
3281 **CCK2 Equivalent:** N/A\
3282 **Preferences Affected:** `layers.acceleration.disabled`
3286 Software\Policies\Mozilla\Firefox\HardwareAcceleration = 0x1 | 0x0
3288 #### Windows (Intune)
3291 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HardwareAcceleration
3295 <enabled/> or <disabled/>
3300 <key>HardwareAcceleration</key>
3308 "HardwareAcceleration": true | false
3313 Configure the default homepage and how Firefox starts.
3315 `URL` is the default homepage.
3317 `Locked` prevents the user from changing homepage preferences.
3319 `Additional` allows for more than one homepage.
3321 `StartPage` is how Firefox starts. The choices are no homepage, the default homepage or the previous session.
3323 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.
3325 **Compatibility:** Firefox 60, Firefox ESR 60 (StartPage was added in Firefox 60, Firefox ESR 60.4, homepage-locked added in Firefox 78)\
3326 **CCK2 Equivalent:** `homePage`,`lockHomePage`\
3327 **Preferences Affected:** `browser.startup.homepage`, `browser.startup.page`
3331 Software\Policies\Mozilla\Firefox\Homepage\URL = "https://example.com"
3332 Software\Policies\Mozilla\Firefox\Homepage\Locked = 0x1 | 0x0
3333 Software\Policies\Mozilla\Firefox\Homepage\Additional\1 = "https://example.org"
3334 Software\Policies\Mozilla\Firefox\Homepage\Additional\2 = "https://example.edu"
3335 Software\Policies\Mozilla\Firefox\Homepage\StartPage = "none" | "homepage" | "previous-session" | "homepage-locked"
3337 #### Windows (Intune)
3340 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageURL
3346 <data id="HomepageURL" value="https://example.com"/>
3347 <data id="HomepageLocked" value="true | false"/>
3351 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageAdditional
3357 <data id="HomepageAdditional" value="1http://example.org2http://example.edu"/>
3361 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageStartPage
3367 <data id="StartPage" value="none | homepage | previous-session"/>
3375 <string>http://example.com</string>
3378 <key>Additional</key>
3380 <string>http://example.org</string>
3381 <string>http://example.edu</string>
3383 <key>StartPage</key>
3384 <string>none | homepage | previous-session | homepage-locked</string>
3393 "URL": "http://example.com/",
3394 "Locked": true | false,
3395 "Additional": ["http://example.org/",
3396 "http://example.edu/"],
3397 "StartPage": "none" | "homepage" | "previous-session" | "homepage-locked"
3402 ### InstallAddonsPermission
3403 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.
3405 `Allow` is a list of origins where extension installs are allowed.
3407 `Default` determines whether or not extension installs are allowed by default.
3409 **Compatibility:** Firefox 60, Firefox ESR 60\
3410 **CCK2 Equivalent:** `permissions.install`\
3411 **Preferences Affected:** `xpinstall.enabled`
3415 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\1 = "https://example.org"
3416 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\2 = "https://example.edu"
3417 Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Default = 0x1 | 0x0
3419 #### Windows (Intune)
3422 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Allow
3427 <data id="Permissions" value="1https://example.org2https://example.edu"/>
3431 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Default
3440 <key>InstallAddonsPermission</key>
3444 <string>http://example.org</string>
3445 <string>http://example.edu</string>
3456 "InstallAddonsPermission": {
3457 "Allow": ["http://example.org/",
3458 "http://example.edu/"],
3459 "Default": true | false
3465 Disable the feature enforcing a separate profile for each installation.
3467 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.
3469 If this policy set to false, Firefox will create a new profile for each unique installation of Firefox.
3471 This policy only work on Windows via GPO (not policies.json).
3473 **Compatibility:** Firefox 70, Firefox ESR 68.2 (Windows only, GPO only)\
3474 **CCK2 Equivalent:** N/A\
3475 **Preferences Affected:** N/A
3479 Software\Policies\Mozilla\Firefox\LegacyProfiles = = 0x1 | 0x0
3481 #### Windows (Intune)
3484 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacyProfiles
3488 <enabled/> or <disabled/>
3490 ### LegacySameSiteCookieBehaviorEnabled
3491 Enable default legacy SameSite cookie behavior setting.
3493 If this policy is set to true, it reverts all cookies to legacy SameSite behavior which means that cookies that don't explicitly specify a ```SameSite``` attribute are treated as if they were ```SameSite=None```.
3495 **Compatibility:** Firefox 96\
3496 **CCK2 Equivalent:** N/A\
3497 **Preferences Affected:** `network.cookie.sameSite.laxByDefault`
3501 Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabled = = 0x1 | 0x0
3503 #### Windows (Intune)
3506 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacySameSiteCookieBehaviorEnabled
3510 <enabled/> or <disabled/>
3515 <key>LegacySameSiteCookieBehaviorEnabled</key>
3523 "LegacySameSiteCookieBehaviorEnabled": true | false
3526 ### LegacySameSiteCookieBehaviorEnabledForDomainList
3527 Revert to legacy SameSite behavior for cookies on specified sites.
3529 If this policy is set to true, cookies set for domains in this list will revert to legacy SameSite behavior which means that cookies that don't explicitly specify a ```SameSite``` attribute are treated as if they were ```SameSite=None```.
3531 **Compatibility:** Firefox 96\
3532 **CCK2 Equivalent:** N/A\
3533 **Preferences Affected:** `network.cookie.sameSite.laxByDefault.disabledHosts`
3537 Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList\1 = "example.org"
3538 Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList\2 = "example.edu"
3540 #### Windows (Intune)
3543 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacySameSiteCookieBehaviorEnabledForDomainList
3548 <data id="LegacySameSiteCookieBehaviorEnabledForDomainList" value="1example.org2example.edu"/>
3553 <key>LegacySameSiteCookieBehaviorEnabledForDomainList</key>
3555 <string>example.org</string>
3556 <string>example.edu</string>
3564 "LegacySameSiteCookieBehaviorEnabledForDomainList": ["example.org",
3570 Enable linking to local files by origin.
3572 **Compatibility:** Firefox 68, Firefox ESR 68\
3573 **CCK2 Equivalent:** N/A\
3574 **Preferences Affected:** `capability.policy.localfilelinks.*`
3578 Software\Policies\Mozilla\Firefox\LocalFileLinks\1 = "https://example.org"
3579 Software\Policies\Mozilla\Firefox\LocalFileLinks\2 = "https://example.edu"
3581 #### Windows (Intune)
3584 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LocalFileLinks
3589 <data id="LocalFileLinks" value="1https://example.org2https://example.edu"/>
3594 <key>LocalFileLinks</key>
3596 <string>http://example.org</string>
3597 <string>http://example.edu</string>
3605 "LocalFileLinks": ["http://example.org/",
3606 "http://example.edu/"]
3610 ### ManagedBookmarks
3611 Configures a list of bookmarks managed by an administrator that cannot be changed by the user.
3613 The bookmarks are only added as a button on the personal toolbar. They are not in the bookmarks folder.
3615 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:
3619 "id": "BookmarkType",
3623 "$ref": "BookmarkType"
3642 **Compatibility:** Firefox 83, Firefox ESR 78.5\
3643 **CCK2 Equivalent:** N/A\
3644 **Preferences Affected:** N/A
3647 Software\Policies\Mozilla\Firefox\ManagedBookmarks (REG_MULTI_SZ) =
3651 "toplevel_name": "My managed bookmarks folder"
3654 "url": "example.com",
3658 "name": "Mozilla links",
3661 "url": "https://mozilla.org",
3662 "name": "Mozilla.org"
3665 "url": "https://support.mozilla.org/",
3672 #### Windows (Intune)
3675 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ManagedBookmarks
3680 <data id="JSON" value='
3683 "toplevel_name": "My managed bookmarks folder"
3686 "url": "example.com",
3690 "name": "Mozilla links",
3693 "url": "https://mozilla.org",
3694 "name": "Mozilla.org"
3697 "url": "https://support.mozilla.org/",
3707 <key>ManagedBookmarks</key>
3710 <key>toplevel_name</key>
3711 <string>My managed bookmarks folder</string>
3714 <string>example.com</string>
3716 <string>Example</string>
3720 <string>Mozilla links</string>
3725 <string>https://mozilla.org</string>
3727 <string>Mozilla</string>
3731 <string>https://support.mozilla.org/</string>
3733 <string>SUMO</string>
3744 "ManagedBookmarks": [
3746 "toplevel_name": "My managed bookmarks folder"
3749 "url": "example.com",
3753 "name": "Mozilla links",
3756 "url": "https://mozilla.org",
3757 "name": "Mozilla.org"
3760 "url": "https://support.mozilla.org/",
3769 ### ManualAppUpdateOnly
3771 Switch to manual updates only.
3773 If this policy is enabled:
3774 1. The user will never be prompted to install updates
3775 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.
3776 3. The update UI will work as expected, unlike when using DisableAppUpdate.
3778 This policy is primarily intended for advanced end users, not for enterprises.
3780 **Compatibility:** Firefox 87\
3781 **CCK2 Equivalent:** N/A\
3782 **Preferences Affected:** N/A
3788 "ManualAppUpdateOnly": true | false
3792 ### NetworkPrediction
3793 Enable or disable network prediction (DNS prefetching).
3795 **Compatibility:** Firefox 67, Firefox ESR 60.7\
3796 **CCK2 Equivalent:** N/A\
3797 **Preferences Affected:** `network.dns.disablePrefetch`, `network.dns.disablePrefetchFromHTTPS`
3801 Software\Policies\Mozilla\Firefox\NetworkPrediction = 0x1 | 0x0
3803 #### Windows (Intune)
3806 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NetworkPrediction
3810 <enabled/> or <disabled/>
3815 <key>NetworkPrediction</key>
3823 "NetworkPrediction": true | false
3827 Enable or disable the New Tab page.
3829 **Compatibility:** Firefox 68, Firefox ESR 68\
3830 **CCK2 Equivalent:** N/A\
3831 **Preferences Affected:** `browser.newtabpage.enabled`
3835 Software\Policies\Mozilla\Firefox\NewTabPage = 0x1 | 0x0
3837 #### Windows (Intune)
3840 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NewTabPage
3844 <enabled/> or <disabled/>
3849 <key>NewTabPage</key>
3857 "NewTabPage": true | false
3860 ### NoDefaultBookmarks
3861 Disable the creation of default bookmarks.
3863 This policy is only effective if the user profile has not been created yet.
3865 **Compatibility:** Firefox 60, Firefox ESR 60\
3866 **CCK2 Equivalent:** `removeDefaultBookmarks`\
3867 **Preferences Affected:** N/A
3871 Software\Policies\Mozilla\Firefox\NoDefaultBookmarks = 0x1 | 0x0
3873 #### Windows (Intune)
3876 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NoDefaultBookmarks
3880 <enabled/> or <disabled/>
3885 <key>NoDefaultBookmarks</key>
3893 "NoDefaultBookmarks": true | false
3897 ### OfferToSaveLogins
3898 Control whether or not Firefox offers to save passwords.
3900 **Compatibility:** Firefox 60, Firefox ESR 60\
3901 **CCK2 Equivalent:** `dontRememberPasswords`\
3902 **Preferences Affected:** `signon.rememberSignons`
3906 Software\Policies\Mozilla\Firefox\OfferToSaveLogins = 0x1 | 0x0
3908 #### Windows (Intune)
3911 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLogins
3915 <enabled/> or <disabled/>
3920 <key>OfferToSaveLogins</key>
3928 "OfferToSaveLogins": true | false
3932 ### OfferToSaveLoginsDefault
3933 Sets the default value of signon.rememberSignons without locking it.
3935 **Compatibility:** Firefox 70, Firefox ESR 60.2\
3936 **CCK2 Equivalent:** `dontRememberPasswords`\
3937 **Preferences Affected:** `signon.rememberSignons`
3941 Software\Policies\Mozilla\Firefox\OfferToSaveLoginsDefault = 0x1 | 0x0
3943 #### Windows (Intune)
3946 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLoginsDefault
3950 <enabled/> or <disabled/>
3955 <key>OfferToSaveLoginsDefault</key>
3963 "OfferToSaveLoginsDefault": true | false
3967 ### OverrideFirstRunPage
3968 Override the first run page. If the value is an empty string (""), the first run page is not displayed.
3970 Starting with Firefox 83, Firefox ESR 78.5, you can also specify multiple URLS separated by a vertical bar (|).
3972 **Compatibility:** Firefox 60, Firefox ESR 60\
3973 **CCK2 Equivalent:** `welcomePage`,`noWelcomePage`\
3974 **Preferences Affected:** `startup.homepage_welcome_url`
3978 Software\Policies\Mozilla\Firefox\OverrideFirstRunPage = "http://example.org"
3980 #### Windows (Intune)
3983 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverrideFirstRunPage
3988 <data id="OverridePage" value="https://example.com"/>
3993 <key>OverrideFirstRunPage</key>
3994 <string>http://example.org</string>
4001 "OverrideFirstRunPage": "http://example.org"
4005 ### OverridePostUpdatePage
4006 Override the upgrade page. If the value is an empty string (""), no extra pages are displayed when Firefox is upgraded.
4008 **Compatibility:** Firefox 60, Firefox ESR 60\
4009 **CCK2 Equivalent:** `upgradePage`,`noUpgradePage`\
4010 **Preferences Affected:** `startup.homepage_override_url`
4014 Software\Policies\Mozilla\Firefox\OverridePostUpdatePage = "http://example.org"
4016 #### Windows (Intune)
4019 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverridePostUpdatePage
4024 <data id="OverridePage" value="https://example.com"/>
4029 <key>OverridePostUpdatePage</key>
4030 <string>http://example.org</string>
4037 "OverridePostUpdatePage": "http://example.org"
4041 ### PasswordManagerEnabled
4042 Remove access to the password manager via preferences and blocks about:logins on Firefox 70.
4044 **Compatibility:** Firefox 70, Firefox ESR 60.2\
4045 **CCK2 Equivalent:** N/A\
4046 **Preferences Affected:** `pref.privacy.disable_button.view_passwords`
4050 Software\Policies\Mozilla\Firefox\PasswordManagerEnabled = 0x1 | 0x0
4052 #### Windows (Intune)
4055 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerEnabled
4059 <enabled/> or <disabled/>
4064 <key>PasswordManagerEnabled</key>
4072 "PasswordManagerEnabled": true | false
4076 ### PasswordManagerExceptions
4077 Prevent Firefox from saving passwords for specific sites.
4079 The sites are specified as a list of origins.
4081 **Compatibility:** Firefox 101\
4082 **CCK2 Equivalent:** N/A\
4083 **Preferences Affected:** N/A
4087 Software\Policies\Mozilla\Firefox\PasswordManagerExceptions\1 = "https://example.org"
4088 Software\Policies\Mozilla\Firefox\PasswordManagerExceptions\2 = "https://example.edu"
4090 #### Windows (Intune)
4093 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerExceptions
4098 <data id="List" value="1https://example.org2https://example.edu"/>
4103 <key>PasswordManagerExceptions</key>
4105 <string>https://example.org</string>
4106 <string>https://example.edu</string>
4114 "PasswordManagerExceptions": ["https://example.org",
4115 "https://example.edu"]
4121 Disable or configure PDF.js, the built-in PDF viewer.
4123 If `Enabled` is set to false, the built-in PDF viewer is disabled.
4125 If `EnablePermissions` is set to true, the built-in PDF viewer will honor document permissions like preventing the copying of text.
4127 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.
4129 **Compatibility:** Firefox 77, Firefox ESR 68.9\
4130 **CCK2 Equivalent:** N/A\
4131 **Preferences Affected:** `pdfjs.diabled`, `pdfjs.enablePermissions`
4135 Software\Policies\Mozilla\Firefox\PDFjs\Enabled = 0x1 | 0x0
4136 Software\Policies\Mozilla\Firefox\PDFjs\EnablePermissions = 0x1 | 0x0
4138 #### Windows (Intune)
4141 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_Enabled
4142 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_EnablePermissions
4146 <enabled/>or <disabled/>
4155 <key>EnablePermissions</key>
4165 "Enabled": true | false,
4166 "EnablePermissions": true | false
4172 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.
4174 `Allow` is a list of origins where the feature is allowed.
4176 `Block` is a list of origins where the feature is not allowed.
4178 `BlockNewRequests` determines whether or not new requests can be made for the feature.
4180 `Locked` prevents the user from changing preferences for the feature.
4182 `Default` specifies the default value for Autoplay. block-audio-video is not supported on Firefox ESR 68.
4184 **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)\
4185 **CCK2 Equivalent:** N/A\
4186 **Preferences Affected:** `permissions.default.camera`, `permissions.default.microphone`, `permissions.default.geo`, `permissions.default.desktop-notification`, `media.autoplay.default`, `permissions.default.xr`
4190 Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\1 = "https://example.org"
4191 Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\2 = "https://example.org:1234"
4192 Software\Policies\Mozilla\Firefox\Permissions\Camera\Block\1 = "https://example.edu"
4193 Software\Policies\Mozilla\Firefox\Permissions\Camera\BlockNewRequests = 0x1 | 0x0
4194 Software\Policies\Mozilla\Firefox\Permissions\Camera\Locked = 0x1 | 0x0
4195 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Allow\1 = "https://example.org"
4196 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Block\1 = "https://example.edu"
4197 Software\Policies\Mozilla\Firefox\Permissions\Microphone\BlockNewRequests = 0x1 | 0x0
4198 Software\Policies\Mozilla\Firefox\Permissions\Microphone\Locked = 0x1 | 0x0
4199 Software\Policies\Mozilla\Firefox\Permissions\Location\Allow\1 = "https://example.org"
4200 Software\Policies\Mozilla\Firefox\Permissions\Location\Block\1 = "https://example.edu"
4201 Software\Policies\Mozilla\Firefox\Permissions\Location\BlockNewRequests = 0x1 | 0x0
4202 Software\Policies\Mozilla\Firefox\Permissions\Location\Locked = 0x1 | 0x0
4203 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Allow\1 = "https://example.org"
4204 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Block\1 = "https://example.edu"
4205 Software\Policies\Mozilla\Firefox\Permissions\Notifications\BlockNewRequests = 0x1 | 0x0
4206 Software\Policies\Mozilla\Firefox\Permissions\Notifications\Locked = 0x1 | 0x0
4207 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Allow\1 = "https://example.org"
4208 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Block\1 = "https://example.edu"
4209 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Default = "allow-audio-video" | "block-audio" | "block-audio-video"
4210 Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Locked = 0x1 | 0x0
4211 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Allow\1 = "https://example.org"
4212 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Block\1 = "https://example.edu"
4213 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\BlockNewRequests = 0x1 | 0x0
4214 Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Locked = 0x1 | 0x0
4216 #### Windows (Intune)
4219 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_BlockNewRequests
4223 <enabled/> or <disabled/>
4227 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_Locked
4231 <enabled/> or <disabled/>
4235 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Allow
4240 <data id="Permissions" value="1https://example.org"/>
4244 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_BlockNewRequests
4248 <enabled/> or <disabled/>
4252 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Locked
4256 <enabled/> or <disabled/>
4260 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Allow
4265 <data id="Permissions" value="1https://example.org"/>
4269 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Block
4274 <data id="Permissions" value="1https://example.edu"/>
4278 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Default
4283 <data id="Autoplay_Default" value="allow-audio-video | block-audio | block-audio-video"/>
4287 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Locked
4291 <enabled/> or <disabled/>
4295 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Allow
4300 <data id="Permissions" value="1https://example.org"/>
4304 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Block
4309 <data id="Permissions" value="1https://example.edu"/>
4313 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_BlockNewRequests
4317 <enabled/> or <disabled/>
4321 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Locked
4325 <enabled/> or <disabled/>
4330 <key>Permissions</key>
4336 <string>https://example.org</string>
4337 <string>https://example.org:1234</string>
4341 <string>https://example.edu</string>
4343 <key>BlockNewRequests</key>
4348 <key>Microphone</key>
4352 <string>https://example.org</string>
4356 <string>https://example.edu</string>
4358 <key>BlockNewRequests</key>
4367 <string>https://example.org</string>
4371 <string>https://example.edu</string>
4373 <key>BlockNewRequests</key>
4378 <key>Notifications</key>
4382 <string>https://example.org</string>
4386 <string>https://example.edu</string>
4388 <key>BlockNewRequests</key>
4397 <string>https://example.org</string>
4401 <string>https://example.edu</string>
4404 <string>allow-audio-video | block-audio | block-audio-video</string>
4417 "Allow": ["https://example.org","https://example.org:1234"],
4418 "Block": ["https://example.edu"],
4419 "BlockNewRequests": true | false,
4420 "Locked": true | false
4423 "Allow": ["https://example.org"],
4424 "Block": ["https://example.edu"],
4425 "BlockNewRequests": true | false,
4426 "Locked": true | false
4429 "Allow": ["https://example.org"],
4430 "Block": ["https://example.edu"],
4431 "BlockNewRequests": true | false,
4432 "Locked": true | false
4435 "Allow": ["https://example.org"],
4436 "Block": ["https://example.edu"],
4437 "BlockNewRequests": true | false,
4438 "Locked": true | false
4441 "Allow": ["https://example.org"],
4442 "Block": ["https://example.edu"],
4443 "Default": "allow-audio-video" | "block-audio" | "block-audio-video",
4444 "Locked": true | false
4450 ### PictureInPicture
4452 Enable or disable Picture-in-Picture as well as prevent the user from enabling or disabling it (Locked).
4454 **Compatibility:** Firefox 78, Firefox ESR 78\
4455 **CCK2 Equivalent:** N/A\
4456 **Preferences Affected:** `media.videocontrols.picture-in-picture.video-toggle.enabled`
4460 Software\Policies\Mozilla\Firefox\PictureInPicture\Enabled = 0x1 | 0x0
4461 Software\Policies\Mozilla\Firefox\PictureInPicture\Locked = 0x1 | 0x0
4464 #### Windows (Intune)
4467 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Enabled
4468 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Locked
4472 <enabled/> or <disabled/>
4477 <key>PictureInPicture</key>
4490 "PictureInPicture": {
4491 "Enabled": true | false,
4492 "Locked": true | false
4498 Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
4500 `Allow` is a list of origins where popup-windows are allowed.
4502 `Default` determines whether or not pop-up windows are allowed by default.
4504 `Locked` prevents the user from changing pop-up preferences.
4506 **Compatibility:** Firefox 60, Firefox ESR 60\
4507 **CCK2 Equivalent:** `permissions.popup`\
4508 **Preferences Affected:** `dom.disable_open_during_load`
4512 Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\1 = "https://example.org"
4513 Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\2 = "https://example.edu"
4514 Software\Policies\Mozilla\Firefox\PopupBlocking\Default = 0x1 | 0x0
4515 Software\Policies\Mozilla\Firefox\PopupBlocking\Locked = 0x1 | 0x0
4517 #### Windows (Intune)
4520 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Allow
4525 <data id="Permissions" value="1https://example.org2https://example.edu"/>
4529 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Default
4533 <enabled/> or <disabled/>
4537 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Locked
4541 <enabled/> or <disabled/>
4546 <key>PopupBlocking</key>
4550 <string>http://example.org</string>
4551 <string>http://example.edu</string>
4565 "Allow": ["http://example.org/",
4566 "http://example.edu/"],
4567 "Default": true | false,
4568 "Locked": true | false
4574 Set and lock preferences.
4576 **NOTE** On Windows, in order to use this policy, you must clear all settings in the old **Preferences (Deprecated)** section.
4578 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.
4580 Preferences that start with the following prefixes are supported:
4583 app.update.* (Firefox 86, Firefox 78.8)
4585 datareporting.policy.
4588 general.autoScroll (Firefox 83, Firefox ESR 78.5)
4589 general.smoothScroll (Firefox 83, Firefox ESR 78.5)
4593 keyword.enabled (Firefox 95, Firefox ESR 91.4)
4598 pdfjs. (Firefox 84, Firefox ESR 78.6)
4601 signon. (Firefox 83, Firefox ESR 78.5)
4602 spellchecker. (Firefox 84, Firefox ESR 78.6)
4603 toolkit.legacyUserProfileCustomizations.stylesheets (Firefox 95, Firefox ESR 91.4)
4606 xpinstall.signatures.required (Firefox ESR 102.10, Firefox ESR only)
4608 as well as the following security preferences:
4610 | Preference | Type | Default
4612 | security.default_personal_cert | string | Ask Every Time
4613 | If set to Select Automatically, Firefox automatically chooses the default personal certificate.
4614 | security.insecure_connection_text.enabled | bool | false
4615 | If set to true, adds the words "Not Secure" for insecure sites.
4616 | security.insecure_connection_text.pbmode.enabled | bool | false
4617 | If set to true, adds the words "Not Secure" for insecure sites in private browsing.
4618 | security.mixed_content.block_active_content | boolean | true
4619 | If false, mixed active content (HTTP and HTTPS) is not blocked.
4620 | security.osclientcerts.autoload | boolean | false
4621 | If true, client certificates are loaded from the operating system certificate store.
4622 | security.OCSP.enabled | integer | 1
4623 | If 0, do not fetch OCSP. If 1, fetch OCSP for DV and EV certificates. If 2, fetch OCSP only for EV certificates
4624 | security.OCSP.require | boolean | false
4625 | If true, if an OCSP request times out, the connection fails.
4626 | security.osclientcerts.assume_rsa_pss_support | boolean | true
4627 | If false, we don't assume an RSA key can do RSA-PSS (Firefox 114, Firefox ESR 102.12).
4628 | security.ssl.enable_ocsp_stapling | boolean | true
4629 | If false, OCSP stapling is not enabled.
4630 | security.ssl.errorReporting.enabled | boolean | true
4631 | If false, SSL errors cannot be sent to Mozilla.
4632 | security.tls.enable_0rtt_data | boolean | true
4633 | If false, TLS early data is turned off (Firefox 93, Firefox 91.2, Firefox 78.15).
4634 | security.tls.hello_downgrade_check | boolean | true
4635 | If false, the TLS 1.3 downgrade check is disabled.
4636 | security.tls.version.enable-deprecated | boolean | false
4637 | If true, browser will accept TLS 1.0. and TLS 1.1 (Firefox 86, Firefox 78.8).
4638 | security.warn_submit_secure_to_insecure | boolean | true
4639 | If false, no warning is shown when submitting a form from https to http.
4641 Using the preference as the key, set the `Value` to the corresponding preference value.
4643 `Status` can be "default", "locked", "user" or "clear"
4645 * `"default"`: Read/Write: Settings appear as default even if factory default differs.
4646 * `"locked"`: Read-Only: Settings appear as default even if factory default differs.
4647 * `"user"`: Read/Write: Settings appear as changed if it differs from factory default.
4648 * `"clear"`: Read/Write: `Value` has no effect. Resets to factory defaults on each startup.
4650 `"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. An example of this is ```toolkit.legacyUserProfileCustomizations.stylesheets```.
4652 `"user"` preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.
4654 See the examples below for more detail.
4656 IMPORTANT: Make sure you're only setting a particular preference using this mechanism and not some other way.
4659 **Compatibility:** Firefox 81, Firefox ESR 78.3\
4660 **CCK2 Equivalent:** `preferences`\
4661 **Preferences Affected:** Many
4664 Software\Policies\Mozilla\Firefox\Preferences (REG_MULTI_SZ) =
4667 "accessibility.force_disabled": {
4671 "browser.cache.disk.parent_directory": {
4672 "Value": "SOME_NATIVE_PATH",
4675 "browser.tabs.warnOnClose": {
4681 #### Windows (Intune)
4684 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Preferences
4689 <data id="JSON" value='
4691 "accessibility.force_disabled": {
4695 "browser.cache.disk.parent_directory": {
4696 "Value": "SOME_NATIVE_PATH",
4699 "browser.tabs.warnOnClose": {
4708 <key>Preferences</key>
4710 <key>accessibility.force_disabled</key>
4713 <integer>1</integer>
4715 <string>default</string>
4717 <key>browser.cache.disk.parent_directory</key>
4720 <string>SOME_NATIVE_PATH</string>
4722 <string>user</string>
4724 <key>browser.tabs.warnOnClose</key>
4729 <string>locked</string>
4739 "accessibility.force_disabled": {
4743 "browser.cache.disk.parent_directory": {
4744 "Value": "SOME_NATIVE_PATH",
4747 "browser.tabs.warnOnClose": {
4755 ### Preferences (Deprecated)
4756 Set and lock certain preferences.
4758 **Compatibility:** See below\
4759 **CCK2 Equivalent:** `preferences`\
4760 **Preferences Affected:** See below
4762 | Preference | Type | Compatibility | Default
4763 | --- | --- | --- | --- |
4764 | accessibility.force_disabled | integer | Firefox 70, Firefox ESR 68.2 | 0
4765 | If set to 1, platform accessibility is disabled.
4766 | app.update.auto (Deprecated - Switch to AppAutoUpdate policy) | boolean | Firefox 68, Firefox ESR 68 | true
4767 | If false, Firefox doesn't automatically install update.
4768 | browser.bookmarks.autoExportHTML | boolean | Firefox 70, Firefox ESR 68.2 | false
4769 | If true, bookmarks are exported on shutdown.
4770 | browser.bookmarks.file | string | Firefox 70, Firefox ESR 68.2 | N/A
4771 | If set, the name of the file where bookmarks are exported and imported.
4772 | browser.bookmarks.restore_default_bookmarks | boolean | Firefox 70, Firefox ESR 68.2 | N/A
4773 | If true, bookmarks are restored to their defaults.
4774 | browser.cache.disk.enable | boolean | Firefox 68, Firefox ESR 68 | true
4775 | If false, don't store cache on the hard drive.
4776 | ~browser.cache.disk.parent_directory~ | string | Firefox 68, Firefox ESR 68 | Profile temporary directory
4777 | ~If set, changes the location of the disk cache.~ This policy doesn't work. It's being worked on.
4778 | browser.fixup.dns_first_for_single_words | boolean | Firefox 68, Firefox ESR 68 | false
4779 | If true, single words are sent to DNS, not directly to search.
4780 | browser.newtabpage.activity-stream.default.sites | string | Firefox 72, ESR 68.4 | Locale dependent
4781 | 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.
4782 | browser.places.importBookmarksHTML | boolean | Firefox 70, Firefox ESR 68.2
4783 | If true, bookmarks are always imported on startup.
4784 | browser.safebrowsing.phishing.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4785 | If false, phishing protection is not enabled (Not recommended)
4786 | browser.safebrowsing.malware.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4787 | If false, malware protection is not enabled (Not recommended)
4788 | browser.search.update | boolean | Firefox 68, Firefox ESR 68 | true
4789 | If false, updates for search engines are not checked.
4790 | browser.slowStartup.notificationDisabled | boolean | Firefox 70, Firefox ESR 68.2 | false
4791 | If true, a notification isn't shown if startup is slow.
4792 | browser.tabs.warnOnClose | boolean | Firefox 68, Firefox ESR 68 | true
4793 | If false, there is no warning when the browser is closed.
4794 | browser.taskbar.previews.enable | boolean | Firefox 70, Firefox ESR 68.2 (Windows only) | false
4795 | If true, tab previews are shown in the Windows taskbar.
4796 | browser.urlbar.suggest.bookmark | boolean | Firefox 68, Firefox ESR 68 | true
4797 | If false, bookmarks aren't suggested when typing in the URL bar.
4798 | browser.urlbar.suggest.history | boolean | Firefox 68, Firefox ESR 68 | true
4799 | If false, history isn't suggested when typing in the URL bar.
4800 | browser.urlbar.suggest.openpage | boolean | Firefox 68, Firefox ESR 68 | true
4801 | If false, open tabs aren't suggested when typing in the URL bar.
4802 | datareporting.policy.dataSubmissionPolicyBypassNotification | boolean | Firefox 68, Firefox ESR 68 | false
4803 | If true, don't show the privacy policy tab on first run.
4804 | dom.allow_scripts_to_close_windows | boolean | Firefox 70, Firefox ESR 68.2 | false
4805 | If false, web page can close windows.
4806 | dom.disable_window_flip | boolean | Firefox 68, Firefox ESR 68 | true
4807 | If false, web pages can focus and activate windows.
4808 | dom.disable_window_move_resize | boolean | Firefox 68, Firefox ESR 68 | false
4809 | If true, web pages can't move or resize windows.
4810 | dom.event.contextmenu.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4811 | If false, web pages can't override context menus.
4812 | dom.keyboardevent.keypress.hack.dispatch_non_printable_keys.addl | string | Firefox 68, Firefox ESR 68 | N/A
4813 | See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
4814 | dom.keyboardevent.keypress.hack.use_legacy_keycode_and_charcode.addl | string | Firefox 68, Firefox ESR 68 | N/A
4815 | See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
4816 | dom.xmldocument.load.enabled | boolean | Firefox ESR 68.5 | true.
4817 | If false, XMLDocument.load is not available.
4818 | dom.xmldocument.async.enabled | boolean | Firefox ESR 68.5 | true
4819 | If false, XMLDocument.async is not available.
4820 | extensions.blocklist.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4821 | If false, the extensions blocklist is not used (Not recommended)
4822 | extensions.getAddons.showPane | boolean | Firefox 68, Firefox ESR 68 | N/A
4823 | If false, the Recommendations tab is not displayed in the Add-ons Manager.
4824 | extensions.htmlaboutaddons.recommendations.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
4825 | If false, recommendations are not shown on the Extensions tab in the Add-ons Manager.
4826 | geo.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
4827 | If false, the geolocation API is disabled. | Language dependent
4828 | intl.accept_languages | string | Firefox 70, Firefox ESR 68.2
4829 | If set, preferred language for web pages.
4830 | media.eme.enabled (Deprecated - Switch to EncryptedMediaExtensions policy) | boolean | Firefox 70, Firefox ESR 68.2 | true
4831 | If false, Encrypted Media Extensions are not enabled.
4832 | media.gmp-gmpopenh264.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4833 | If false, the OpenH264 plugin is not downloaded.
4834 | media.gmp-widevinecdm.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4835 | If false, the Widevine plugin is not downloaded.
4836 | media.peerconnection.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
4837 | If false, WebRTC is disabled
4838 | media.peerconnection.ice.obfuscate_host_addresses.whitelist (Deprecated) | string | Firefox 72, Firefox ESR 68.4 | N/A
4839 | If set, a list of domains for which mDNS hostname obfuscation is
4841 | media.peerconnection.ice.obfuscate_host_addresses.blocklist | string | Firefox 79, Firefox ESR 78.1 | N/A
4842 | If set, a list of domains for which mDNS hostname obfuscation is
4844 | network.dns.disableIPv6 | boolean | Firefox 68, Firefox ESR 68 | false
4845 | If true, IPv6 DNS lokoups are disabled.
4846 | network.IDN_show_punycode | boolean | Firefox 68, Firefox ESR 68 | false
4847 | If true, display the punycode version of internationalized domain names.
4848 | places.history.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4849 | If false, history is not enabled.
4850 | print.save_print_settings | boolean | Firefox 70, Firefox ESR 68.2 | true
4851 | If false, print settings are not saved between jobs.
4852 | security.default_personal_cert | string | Firefox 68, Firefox ESR 68 | Ask Every Time
4853 | If set to Select Automatically, Firefox automatically chooses the default personal certificate.
4854 | security.mixed_content.block_active_content | boolean | Firefox 70, Firefox ESR 68.2 | true
4855 | If false, mixed active content (HTTP and HTTPS) is not blocked.
4856 | security.osclientcerts.autoload | boolean | Firefox 72 (Windows), Firefox 75 (macOS) | false
4857 | If true, client certificates are loaded from the operating system certificate store.
4858 | security.ssl.errorReporting.enabled | boolean | Firefox 68, Firefox ESR 68 | true
4859 | If false, SSL errors cannot be sent to Mozilla.
4860 | security.tls.hello_downgrade_check | boolean | Firefox 72, Firefox ESR 68.4 | true
4861 | If false, the TLS 1.3 downgrade check is disabled.
4862 | ui.key.menuAccessKeyFocuses | boolean | Firefox 68, Firefox ESR 68 | true
4863 | If false, the Alt key doesn't show the menubar on Windows.
4864 | widget.content.gtk-theme-override | string | Firefox 72, Firefox ESR 68.4 (Linux only) | N/A
4865 | If set, overrides the GTK theme for widgets.
4869 Software\Policies\Mozilla\Firefox\Preferences\boolean_preference_name = 0x1 | 0x0
4870 Software\Policies\Mozilla\Firefox\Preferences\string_preference_name = "string_value"
4872 #### Windows (Intune)
4873 OMA-URI: (periods are replaced by underscores)
4875 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/boolean_preference_name
4879 <enabled/> or <disabled/>
4881 OMA-URI: (periods are replaced by underscores)
4883 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/string_preference_name
4888 <data id="Preferences_String" value="string_value"/>
4893 <key>Preferences</key>
4895 <key>boolean_preference_name</key>
4897 <key>string_preference_name</key>
4898 <string>string_value</string>
4907 "boolean_preference_name": true | false,
4908 "string_preference_name": "string_value"
4914 Require or prevent using a primary (formerly master) password.
4916 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.
4918 If both DisableMasterPasswordCreation and PrimaryPassword are used, DisableMasterPasswordCreation takes precedent.
4920 **Compatibility:** Firefox 79, Firefox ESR 78.1\
4921 **CCK2 Equivalent:** `noMasterPassword`\
4922 **Preferences Affected:** N/A
4926 Software\Policies\Mozilla\Firefox\PrimaryPassword = 0x1 | 0x0
4928 #### Windows (Intune)
4931 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PrimaryPassword
4935 <enabled/> or <disabled/>
4940 <key>PrimaryPassword</key>
4948 "PrimaryPassword": true | false
4952 ### PromptForDownloadLocation
4953 Ask where to save each file before downloading.
4955 **Compatibility:** Firefox 68, Firefox ESR 68\
4956 **CCK2 Equivalent:** N/A\
4957 **Preferences Affected:** `browser.download.useDownloadDir`
4961 Software\Policies\Mozilla\Firefox\PromptForDownloadLocation = 0x1 | 0x0
4963 #### Windows (Intune)
4966 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PromptForDownloadLocation
4970 <enabled/> or <disabled/>
4975 <key>PromptForDownloadLocation</key>
4983 "PromptForDownloadLocation": true | false
4988 Configure proxy settings. These settings correspond to the connection settings in Firefox preferences.
4989 To specify ports, append them to the hostnames with a colon (:).
4991 Unless you lock this policy, changes the user already has in place will take effect.
4993 `Mode` is the proxy method being used.
4995 `Locked` is whether or not proxy settings can be changed.
4997 `HTTPProxy` is the HTTP proxy server.
4999 `UseHTTPProxyForAllProtocols` is whether or not the HTTP proxy should be used for all other proxies.
5001 `SSLProxy` is the SSL proxy server.
5003 `FTPProxy` is the FTP proxy server.
5005 `SOCKSProxy` is the SOCKS proxy server
5007 `SOCKSVersion` is the SOCKS version (4 or 5)
5009 `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.
5011 `AutoConfigURL` is a URL for proxy configuration (only used if Mode is autoConfig).
5013 `AutoLogin` means do not prompt for authentication if password is saved.
5015 `UseProxyForDNS` to use proxy DNS when using SOCKS v5.
5017 **Compatibility:** Firefox 60, Firefox ESR 60\
5018 **CCK2 Equivalent:** `networkProxy*`\
5019 **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`
5023 Software\Policies\Mozilla\Firefox\Proxy\Mode = "none" | "system" | "manual" | "autoDetect" | "autoConfig"
5024 Software\Policies\Mozilla\Firefox\Proxy\Locked = 0x1 | 0x0
5025 Software\Policies\Mozilla\Firefox\=Proxy\HTTPProxy = https://httpproxy.example.com
5026 Software\Policies\Mozilla\Firefox\Proxy\UseHTTPProxyForAllProtocols = 0x1 | 0x0
5027 Software\Policies\Mozilla\Firefox\Proxy\SSLProxy = https://sslproxy.example.com
5028 Software\Policies\Mozilla\Firefox\Proxy\FTPProxy = https://ftpproxy.example.com
5029 Software\Policies\Mozilla\Firefox\Proxy\SOCKSProxy = https://socksproxy.example.com
5030 Software\Policies\Mozilla\Firefox\Proxy\SOCKSVersion = 0x4 | 0x5
5031 Software\Policies\Mozilla\Firefox\Proxy\Passthrough = <local>
5032 Software\Policies\Mozilla\Firefox\Proxy\AutoConfigURL = URL_TO_AUTOCONFIG
5033 Software\Policies\Mozilla\Firefox\Proxy\AutoLogin = 0x1 | 0x0
5034 Software\Policies\Mozilla\Firefox\Proxy\UseProxyForDNS = 0x1 | 0x0
5036 #### Windows (Intune)
5038 These setttings were moved to a category to make them easier to configure via Intune.
5042 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_Locked
5046 <enabled/> or <disabled/>
5050 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_ConnectionType
5055 <data id="Proxy_ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
5059 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_HTTPProxy
5064 <data id="Proxy_HTTPProxy" value="httpproxy.example.com"/>
5068 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_UseHTTPProxyForAllProtocols
5072 <enabled/> or <disabled/>
5076 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_SSLProxy
5081 <data id="Proxy_SSLProxy" value="sslproxy.example.com"/>
5085 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_SOCKSProxy
5090 <data id="Proxy_SOCKSProxy" value="socksproxy.example.com"/>
5091 <data id="Proxy_SOCKSVersion" value="4 | 5"/>
5095 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_AutoConfigURL
5100 <data id="Proxy_AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
5104 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_Passthrough
5109 <data id="Proxy_Passthrough" value="<local>"/>
5113 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_AutoLogin
5117 <enabled/> or <disabled/>
5121 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~ProxySettings/Proxy_UseProxyForDNS
5125 <enabled/> or <disabled/>
5129 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy
5134 <data id="ProxyLocked" value="true | false"/>
5135 <data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
5136 <data id="HTTPProxy" value="httpproxy.example.com"/>
5137 <data id="UseHTTPProxyForAllProtocols" value="true | false"/>
5138 <data id="SSLProxy" value="sslproxy.example.com"/>
5139 <data id="FTPProxy" value="ftpproxy.example.com"/>
5140 <data id="SOCKSProxy" value="socksproxy.example.com"/>
5141 <data id="SOCKSVersion" value="4 | 5"/>
5142 <data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
5143 <data id="Passthrough" value="<local>"/>
5144 <data id="AutoLogin" value="true | false"/>
5145 <data id="UseProxyForDNS" value="true | false"/>
5153 <string>none | system | manual | autoDetect | autoConfig</string>
5156 <key>HTTPProxy</key>
5157 <string>https://httpproxy.example.com</string>
5158 <key>UseHTTPProxyForAllProtocols</key>
5161 <string>https://sslproxy.example.com</string>
5163 <string>https://ftpproxy.example.com</string>
5164 <key>SOCKSProxy</key>
5165 <string>https://socksproxy.example.com</string>
5166 <key>SOCKSVersion</key>
5167 <string>4 | 5</string>
5168 <key>Passthrough</key>
5169 <string><local>></string>
5170 <key>AutoConfigURL</key>
5171 <string>URL_TO_AUTOCONFIG</string>
5172 <key>AutoLogin</key>
5174 <key>UseProxyForDNS</key>
5184 "Mode": "none" | "system" | "manual" | "autoDetect" | "autoConfig",
5185 "Locked": true | false,
5186 "HTTPProxy": "hostname",
5187 "UseHTTPProxyForAllProtocols": true | false,
5188 "SSLProxy": "hostname",
5189 "FTPProxy": "hostname",
5190 "SOCKSProxy": "hostname",
5191 "SOCKSVersion": 4 | 5,
5192 "Passthrough": "<local>",
5193 "AutoConfigURL": "URL_TO_AUTOCONFIG",
5194 "AutoLogin": true | false,
5195 "UseProxyForDNS": true | false
5200 ### RequestedLocales
5201 Set the the list of requested locales for the application in order of preference. It will cause the corresponding language pack to become active.
5203 Note: For Firefox 68, this can now be a string so that you can specify an empty value.
5205 **Compatibility:** Firefox 64, Firefox ESR 60.4, Updated in Firefox 68, Firefox ESR 68\
5206 **CCK2 Equivalent:** N/A\
5207 **Preferences Affected:** N/A
5210 Software\Policies\Mozilla\Firefox\RequestedLocales\1 = "de"
5211 Software\Policies\Mozilla\Firefox\RequestedLocales\2 = "en-US"
5215 Software\Policies\Mozilla\Firefox\RequestedLocales = "de,en-US"
5217 #### Windows (Intune)
5220 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/RequestedLocalesString
5225 <data id="Preferences_String" value="de,en-US"/>
5230 <key>RequestedLocales</key>
5233 <string>en-US</string>
5240 <key>RequestedLocales</key>
5241 <string>de,en-US</string>
5249 "RequestedLocales": ["de", "en-US"]
5257 "RequestedLocales": "de,en-US"
5261 <a name="SanitizeOnShutdown"></a>
5263 ### SanitizeOnShutdown (Selective)
5264 Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.
5266 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.
5268 **Compatibility:** Firefox 68, Firefox ESR 68 (Locked added in 74/68.6)\
5269 **CCK2 Equivalent:** N/A\
5270 **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`
5273 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cache = 0x1 | 0x0
5274 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cookies = 0x1 | 0x0
5275 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Downloads = 0x1 | 0x0
5276 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\FormData = 0x1 | 0x0
5277 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\History = 0x1 | 0x0
5278 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Sessions = 0x1 | 0x0
5279 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\SiteSettings = 0x1 | 0x0
5280 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\OfflineApps = 0x1 | 0x0
5281 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Locked = 0x1 | 0x0
5283 #### Windows (Intune)
5286 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/A_SanitizeOnShutdown_Cache
5290 <enabled/> or <disabled/>
5294 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/B_SanitizeOnShutdown_Cookies
5298 <enabled/> or <disabled/>
5302 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/C_SanitizeOnShutdown_Downloads
5306 <enabled/> or <disabled/>
5310 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/D_SanitizeOnShutdown_FormData
5314 <enabled/> or <disabled/>
5318 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/E_SanitizeOnShutdown_History
5322 <enabled/> or <disabled/>
5326 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/F_SanitizeOnShutdown_Sessions
5330 <enabled/> or <disabled/>
5334 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/G_SanitizeOnShutdown_SiteSettings
5338 <enabled/> or <disabled/>
5342 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/H_SanitizeOnShutdown_OfflineApps
5346 <enabled/> or <disabled/>
5350 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~SanitizeOnShutdown/I_SanitizeOnShutdown_Locked
5354 <enabled/> or <disabled/>
5359 <key>SanitizeOnShutdown</key>
5365 <key>Downloads</key>
5373 <key>SiteSettings</key>
5375 <key>OfflineApps</key>
5386 "SanitizeOnShutdown": {
5387 "Cache": true | false,
5388 "Cookies": true | false,
5389 "Downloads": true | false,
5390 "FormData": true | false,
5391 "History": true | false,
5392 "Sessions": true | false,
5393 "SiteSettings": true | false,
5394 "OfflineApps": true | false,
5395 "Locked": true | false
5400 ### SanitizeOnShutdown (All)
5401 Clear all data on shutdown, including Browsing & Download History, Cookies, Active Logins, Cache, Form & Search History, Site Preferences and Offline Website Data.
5403 **Compatibility:** Firefox 60, Firefox ESR 60\
5404 **CCK2 Equivalent:** N/A\
5405 **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`
5408 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown = 0x1 | 0x0
5410 #### Windows (Intune)
5413 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/C_SanitizeOnShutdown
5417 <enabled/> or <disabled/>
5422 <key>SanitizeOnShutdown</key>
5430 "SanitizeOnShutdown": true | false
5435 Set whether or not search bar is displayed.
5437 **Compatibility:** Firefox 60, Firefox ESR 60\
5438 **CCK2 Equivalent:** `showSearchBar`\
5439 **Preferences Affected:** N/A
5443 Software\Policies\Mozilla\Firefox\SearchBar = "unified" | "separate"
5446 #### Windows (Intune)
5449 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SearchBar
5454 <data id="SearchBar" value="unified | separate"/>
5459 <key>SearchBar</key>
5460 <string>unified | separate</string>
5467 "SearchBar": "unified" | "separate"
5471 <a name="SearchEngines"></a>
5473 ### SearchEngines (This policy is only available on the ESR.)
5475 ### SearchEngines | Add
5477 Add new search engines. Although there are only five engines available in the ADMX template, there is no limit. To add more in the ADMX template, you can duplicate the XML.
5479 This policy is only available on the ESR. `Name` and `URLTemplate` are required.
5481 `Name` is the name of the search engine.
5483 `URLTemplate` is the search URL with {searchTerms} to substitute for the search term.
5485 `Method` is either GET or POST
5487 `IconURL` is a URL for the icon to use.
5489 `Alias` is a keyword to use for the engine.
5491 `Description` is a description of the search engine.
5493 `PostData` is the POST data as name value pairs separated by &.
5495 `SuggestURLTemplate` is a search suggestions URL with {searchTerms} to substitute for the search term.
5497 `Encoding` is the query charset for the engine. It defaults to UTF-8.
5499 **Compatibility:** Firefox ESR 60 (POST support in Firefox ESR 68, Encoding support in Firefox 91)\
5500 **CCK2 Equivalent:** `searchplugins`\
5501 **Preferences Affected:** N/A
5505 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Name = "Example1"
5506 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\URLTemplate = "https://www.example.org/q={searchTerms}"
5507 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Method = "GET" | "POST"
5508 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\IconURL = "https://www.example.org/favicon.ico"
5509 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Alias = "example"
5510 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\Description = "Example Description"
5511 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\SuggestURLTemplate = "https://www.example.org/suggestions/q={searchTerms}"
5512 Software\Policies\Mozilla\Firefox\SearchEngines\Add\1\PostData = "name=value&q={searchTerms}"
5514 #### Windows (Intune)
5517 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_1
5522 <data id="SearchEngine_Name" value="Example1"/>
5523 <data id="SearchEngine_URLTemplate" value="https://www.example.org/q={searchTerms"/>
5524 <data id="SearchEngine_Method" value="GET | POST"/>
5525 <data id="SearchEngine_IconURL" value="https://www.example.org/favicon.ico"/>
5526 <data id="SearchEngine_Alias" value="example"/>
5527 <data id="SearchEngine_Description" value="Example Description"/>
5528 <data id="SearchEngine_SuggestURLTemplate" value="https://www.example.org/suggestions/q={searchTerms}"/>
5529 <data id="SearchEngine_PostData" value="name=value&q={searchTerms}"/>
5534 <key>SearchEngines</key>
5540 <string>Example1</string>
5541 <key>URLTemplate</key>
5542 <string>https://www.example.org/q={searchTerms}</string>
5544 <string>GET | POST </string>
5546 <string>https://www.example.org/favicon.ico</string>
5548 <string>example</string>
5549 <key>Description</key>
5550 <string>Example Description</string>
5551 <key>SuggestURLTemplate</key>
5552 <string>https://www.example.org/suggestions/q={searchTerms}</string>
5554 <string>name=value&q={searchTerms}</string>
5568 "URLTemplate": "https://www.example.org/q={searchTerms}",
5569 "Method": "GET" | "POST",
5570 "IconURL": "https://www.example.org/favicon.ico",
5572 "Description": "Description",
5573 "PostData": "name=value&q={searchTerms}",
5574 "SuggestURLTemplate": "https://www.example.org/suggestions/q={searchTerms}"
5581 ### SearchEngines | Default
5583 Set the default search engine. This policy is only available on the ESR.
5585 **Compatibility:** Firefox ESR 60\
5586 **CCK2 Equivalent:** `defaultSearchEngine`\
5587 **Preferences Affected:** N/A
5591 Software\Policies\Mozilla\Firefox\SearchEngines\Default = NAME_OF_SEARCH_ENGINE
5593 #### Windows (Intune)
5596 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Default
5601 <data id="SearchEngines_Default" value="NAME_OF_SEARCH_ENGINE"/>
5606 <key>SearchEngines</key>
5609 <string>NAME_OF_SEARCH_ENGINE</string>
5618 "Default": "NAME_OF_SEARCH_ENGINE"
5623 ### SearchEngines | PreventInstalls
5625 Prevent installing search engines from webpages.
5627 **Compatibility:** Firefox ESR 60\
5628 **CCK2 Equivalent:** `disableSearchEngineInstall`\
5629 **Preferences Affected:** N/A
5633 Software\Policies\Mozilla\Firefox\SearchEngines\PreventInstalls = 0x1 | 0x0
5635 #### Windows (Intune)
5638 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_PreventInstalls
5642 <enabled/> or <disabled/>
5647 <key>SearchEngines</key>
5649 <key>PreventInstalls</key>
5659 "PreventInstalls": true | false
5664 ### SearchEngines | Remove
5666 Hide built-in search engines. This policy is only available on the ESR.
5668 **Compatibility:** Firefox ESR 60.2\
5669 **CCK2 Equivalent:** `removeDefaultSearchEngines` (removed all built-in engines)\
5670 **Preferences Affected:** N/A
5674 Software\Policies\Mozilla\Firefox\SearchEngines\Remove\1 = NAME_OF_SEARCH_ENGINE
5676 #### Windows (Intune)
5679 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchEngines_Remove
5684 <data id="SearchEngines_Remove" value="1NAME_OF_SEARCH_ENGINE"/>
5689 <key>SearchEngines</key>
5693 <string>NAME_OF_SEARCH_ENGINE</string>
5703 "Remove": ["NAME_OF_SEARCH_ENGINE"]
5708 ### SearchSuggestEnabled
5710 Enable search suggestions.
5712 **Compatibility:** Firefox 68, Firefox ESR 68\
5713 **CCK2 Equivalent:** N/A\
5714 **Preferences Affected:** `browser.urlbar.suggest.searches`, `browser.search.suggest.enabled`
5718 Software\Policies\Mozilla\Firefox\SearchSuggestEnabled = 0x1 | 0x0
5720 #### Windows (Intune)
5723 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Search/SearchSuggestEnabled
5727 <enabled/> or <disabled/>
5732 <key>SearchSuggestEnabled</key>
5740 "SearchSuggestEnabled": true | false
5746 Add or delete PKCS #11 modules.
5748 **Compatibility:** Firefox 114, Firefox ESR 112.12\
5749 **CCK2 Equivalent:** N/A\
5750 **Preferences Affected:** N/A
5754 Software\Policies\Mozilla\Firefox\SecurityDevices\Add\NAME_OF_DEVICE_TO_ADD = PATH_TO_LIBRARY_FOR_DEVICE
5755 Software\Policies\Mozilla\Firefox\SecurityDevices\Remove\1 = NAME_OF_DEVICE_TO_REMOVE
5757 #### Windows (Intune)
5760 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices/SecurityDevices_Add
5765 <data id="SecurityDevices" value="NAME_OF_DEVICE_TO_ADDPATH_TO_LIBRARY_FOR_DEVICE"/>
5769 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices/SecurityDevices_Delete
5774 <data id="SecurityDevices" value="1NAME_OF_DEVICE_TO_REMOVE"/>
5779 <key>SecurityDevices</key>
5783 <key>NAME_OF_DEVICE_TO_ADD</key>
5784 <string>PATH_TO_LIBRARY_FOR_DEVICE</string>
5788 <string>NAME_OF_DEVICE_TO_DELETE</string>
5797 "SecurityDevices": {
5799 "NAME_OF_DEVICE_TO_ADD": "PATH_TO_LIBRARY_FOR_DEVICE"
5801 "Delete": ["NAME_OF_DEVICE_TO_DELETE"]
5806 ### SecurityDevices (Deprecated)
5808 Install PKCS #11 modules.
5810 **Compatibility:** Firefox 64, Firefox ESR 60.4\
5811 **CCK2 Equivalent:** `certs.devices`\
5812 **Preferences Affected:** N/A
5816 Software\Policies\Mozilla\Firefox\SecurityDevices\NAME_OF_DEVICE = PATH_TO_LIBRARY_FOR_DEVICE
5818 #### Windows (Intune)
5821 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SecurityDevices
5826 <data id="SecurityDevices" value="NAME_OF_DEVICEPATH_TO_LIBRARY_FOR_DEVICE"/>
5831 <key>SecurityDevices</key>
5833 <key>NAME_OF_DEVICE</key>
5834 <string>PATH_TO_LIBRARY_FOR_DEVICE</string>
5842 "SecurityDevices": {
5843 "NAME_OF_DEVICE": "PATH_TO_LIBRARY_FOR_DEVICE"
5849 Show the home button on the toolbar.
5851 Future versions of Firefox will not show the home button by default.
5853 **Compatibility:** Firefox 88, Firefox ESR 78.10\
5854 **CCK2 Equivalent:** N/A\
5855 **Preferences Affected:** N/A
5859 Software\Policies\Mozilla\Firefox\ShowHomeButton = 0x1 | 0x0
5861 #### Windows (Intune)
5864 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/Homepage_ShowHomeButton
5868 <enabled/> or <disabled/>
5873 <key>ShowHomeButton</key>
5881 "ShowHomeButton": true | false
5887 Set and lock the maximum version of TLS.
5889 **Compatibility:** Firefox 66, Firefox ESR 60.6\
5890 **CCK2 Equivalent:** N/A\
5891 **Preferences Affected:** `security.tls.version.max`
5895 Software\Policies\Mozilla\Firefox\SSLVersionMax = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5897 #### Windows (Intune)
5900 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMax
5905 <data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>
5910 <key>SSLVersionMax</key>
5911 <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
5919 "SSLVersionMax": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5925 Set and lock the minimum version of TLS.
5927 **Compatibility:** Firefox 66, Firefox ESR 60.6\
5928 **CCK2 Equivalent:** N/A\
5929 **Preferences Affected:** `security.tls.version.min`
5933 Software\Policies\Mozilla\Firefox\SSLVersionMin = "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5935 #### Windows (Intune)
5938 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SSLVersionMin
5943 <data id="SSLVersion" value="tls1 | tls1.2 | tls1.3"/>
5948 <key>SSLVersionMin</key>
5949 <string>tls1 | tls1.1 | tls1.2 | tls1.3</string>
5957 "SSLVersionMin": "tls1" | "tls1.1" | "tls1.2" | "tls1.3"
5962 Add a menuitem to the help menu for specifying support information.
5964 **Compatibility:** Firefox 68.0.1, Firefox ESR 68.0.1\
5965 **CCK2 Equivalent:** helpMenu\
5966 **Preferences Affected:** N/A
5970 Software\Policies\Mozilla\Firefox\SupportMenu\Title = "Support Menu"
5971 Software\Policies\Mozilla\Firefox\SupportMenu\URL = "http://example.com/support"
5972 Software\Policies\Mozilla\Firefox\SupportMenu\AccessKey = "S"
5974 #### Windows (Intune)
5977 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/SupportMenu
5982 <data id="SupportMenuTitle" value="Support Menu"/>
5983 <data id="SupportMenuURL" value="http://example.com/support"/>
5984 <data id="SupportMenuAccessKey" value="S"/>
5989 <key>SupportMenu</key>
5992 <string>SupportMenu</string>
5994 <string>http://example.com/support</string>
5995 <key>AccessKey</key>
6005 "Title": "Support Menu",
6006 "URL": "http://example.com/support",
6012 ### StartDownloadsInTempDirectory
6013 Force downloads to start off in a local, temporary location rather than the default download directory.
6015 **Compatibility:** Firefox 102\
6016 **CCK2 Equivalent:** N/A\
6017 **Preferences Affected:** `browser.download.start_downloads_in_tmp_dir`
6021 Software\Policies\Mozilla\Firefox\StartDownloadsInTempDirectory = 0x1 | 0x0
6023 #### Windows (Intune)
6026 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/StartDownloadsInTempDirectory
6030 <enabled/> or <disabled/>
6035 <key>StartDownloadsInTempDirectory</key>
6043 "StartDownloadsInTempDirectory": true | false
6048 Prevent Firefox from messaging the user in certain situations.
6050 `WhatsNew` Remove the "What's New" icon and menuitem.
6052 `ExtensionRecommendations` If false, don't recommend extensions while the user is visiting web pages.
6054 `FeatureRecommendations` If false, don't recommend browser features.
6056 `UrlbarInterventions` If false, Don't offer Firefox specific suggestions in the URL bar.
6058 `SkipOnboarding` If true, don't show onboarding messages on the new tab page.
6060 `MoreFromMozilla` If false, don't show the "More from Mozilla" section in Preferences. (Firefox 98)
6062 **Compatibility:** Firefox 75, Firefox ESR 68.7\
6063 **CCK2 Equivalent:** N/A\
6064 **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`, `browser.preferences.moreFromMozilla`
6068 Software\Policies\Mozilla\Firefox\UserMessaging\WhatsNew = 0x1 | 0x0
6069 Software\Policies\Mozilla\Firefox\UserMessaging\ExtensionRecommendations = 0x1 | 0x0
6070 Software\Policies\Mozilla\Firefox\UserMessaging\FeatureRecommendations = 0x1 | 0x0
6071 Software\Policies\Mozilla\Firefox\UserMessaging\UrlbarInterventions = 0x1 | 0x0
6072 Software\Policies\Mozilla\Firefox\UserMessaging\SkipOnboarding = 0x1 | 0x0
6073 Software\Policies\Mozilla\Firefox\UserMessaging\MoreFromMozilla = 0x1 | 0x0
6075 #### Windows (Intune)
6078 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_WhatsNew
6079 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_ExtensionRecommendations
6080 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_FeatureRecommendations
6081 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_UrlbarInterventions
6082 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_SkipOnboarding
6083 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_MoreFromMozilla
6087 <enabled/> or <disabled/>
6092 <key>UserMessaging</key>
6096 <key>ExtensionRecommendations</key>
6098 <key>FeatureRecommendations</key>
6100 <key>UrlbarInterventions</key>
6102 <key>SkipOnboarding</key>
6104 <key>MoreFromMozilla</key>
6114 "WhatsNew": true | false,
6115 "ExtensionRecommendations": true | false,
6116 "FeatureRecommendations": true | false,
6117 "UrlbarInterventions": true | false,
6118 "SkipOnboarding": true | false,
6119 "MoreFromMozilla": true | false
6124 ### UseSystemPrintDialog
6125 Use the system print dialog instead of the print preview window.
6127 **Compatibility:** Firefox 102\
6128 **CCK2 Equivalent:** N/A\
6129 **Preferences Affected:** `print.prefer_system_dialog`
6133 Software\Policies\Mozilla\Firefox\UseSystemPrintDialog = 0x1 | 0x0
6135 #### Windows (Intune)
6138 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/UseSystemPrintDialog
6142 <enabled/> or <disabled/>
6147 <key>UseSystemPrintDialog</key>
6155 "UseSystemPrintDialog": true | false
6160 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.
6161 The arrays are limited to 1000 entries each.
6163 If you want to block all URLs, you can use `<all_urls>` or `*://*/*`. You can't have just a `*` on the right side.
6165 For specific protocols, use `https://*/*` or `http://*/*`.
6167 As of Firefox 83 and Firefox ESR 78.5, file URLs are supported.
6169 **Compatibility:** Firefox 60, Firefox ESR 60\
6170 **CCK2 Equivalent:** N/A\
6171 **Preferences Affected:** N/A
6175 Software\Policies\Mozilla\Firefox\WebsiteFilter\Block\1 = "<all_urls>"
6176 Software\Policies\Mozilla\Firefox\WebsiteFilter\Exceptions\1 = "http://example.org/*"
6178 #### Windows (Intune)
6181 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Block
6185 <enabled/> <data id="WebsiteFilter" value="1<all_urls>"/>
6189 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/B_WebsiteFilter_Exceptions
6194 <data id="WebsiteFilter" value="1http://example.org/*"/>
6199 <key>WebsiteFilter</key>
6203 <string><all_urls></string>
6205 <key>Exceptions</key>
6207 <string>http://example.org/*</string>
6218 "Block": ["<all_urls>"],
6219 "Exceptions": ["http://example.org/*"]
6225 Allow Windows single sign-on for Microsoft, work, and school accounts.
6227 If this policy is set to true, Firefox will use credentials stored in Windows to sign in to Microsoft, work, and school accounts.
6229 **Compatibility:** Firefox 91\
6230 **CCK2 Equivalent:** N/A\
6231 **Preferences Affected:** `network.http.windows-sso.enabled`
6235 Software\Policies\Mozilla\Firefox\WindowsSSO = 0x1 | 0x0
6237 #### Windows (Intune)
6240 ./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/WindowsSSO
6244 <enabled/> or <disabled/>
6250 "WindowsSSO": true | false