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`.
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:
-
```
{
"policies": {
}
}
```
+Note: The `policies.json` must use the UTF-8 encoding.
| Policy Name | Description
| --- | --- |
| **[`DisabledCiphers`](#disabledciphers)** | Disable ciphers.
| **[`DisableDefaultBrowserAgent`](#disabledefaultbrowseragent)** | Prevent the default browser agent from taking any actions (Windows only).
| **[`DisableDeveloperTools`](#disabledevelopertools)** | Remove access to all developer tools.
+| **[`DisableEncryptedClientHello`](#disableencryptedclienthello)** | Disable the TLS Feature Encrypted Client Hello (ECH).
| **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
| **[`DisableFirefoxAccounts`](#disablefirefoxaccounts)** | Disable Firefox Accounts integration (Sync).
| **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.
| **[`Handlers`](#handlers)** | Configure default application handlers.
| **[`HardwareAcceleration`](#hardwareacceleration)** | Control hardware acceleration.
| **[`Homepage`](#homepage)** | Configure the default homepage and how Firefox starts.
+| **[`HttpAllowlist`](#httpallowlist)** | Configure origins that will not be upgraded to HTTPS.
+| **[`HttpsOnlyMode`](#httpsonlymode)** | Configure HTTPS-Only Mode.
| **[`InstallAddonsPermission`](#installaddonspermission)** | Configure the default extension install policy as well as origins for extension installs are allowed.
| **[`LegacyProfiles`](#legacyprofiles)** | Disable the feature enforcing a separate profile for each installation.
| **[`LegacySameSiteCookieBehaviorEnabled`](#legacysamesitecookiebehaviorenabled)** | Enable default legacy SameSite cookie behavior setting.
| **[`Permissions`](#permissions)** | Set permissions associated with camera, microphone, location, and notifications.
| **[`PictureInPicture`](#pictureinpicture)** | Enable or disable Picture-in-Picture.
| **[`PopupBlocking`](#popupblocking)** | Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
+| **[`PostQuantumKeyAgreementEnabled`](#postquantumkeyagreementenabled)** | Enable post-quantum key agreement for TLS.
| **[`Preferences`](#preferences)** | Set and lock preferences.
| **[`PrimaryPassword`](#primarypassword)** | Require or prevent using a primary (formerly master) password.
| **[`PrintingEnabled`](#printingenabled)** | Enable or disable printing.
| **[`SSLVersionMin`](#sslversionmin)** | Set and lock the minimum version of TLS.
| **[`StartDownloadsInTempDirectory`](#startdownloadsintempdirectory)** | Force downloads to start off in a local, temporary location rather than the default download directory.
| **[`SupportMenu`](#supportmenu)** | Add a menuitem to the help menu for specifying support information.
+| **[`TranslateEnabled`](#translateenabled)** | Enable or disable webpage translation.
| **[`UserMessaging`](#usermessaging)** | Don't show certain messages to the user.
| **[`UseSystemPrintDialog`](#usesystemprintdialog)** | Print using the system print dialog instead of print preview.
| **[`WebsiteFilter`](#websitefilter)** | Block websites from being visited.
### 3rdparty
-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/).
+Allow WebExtensions to configure policy. For more information, see [Adding policy support to your extension](https://extensionworkshop.com/documentation/enterprise/enterprise-development/#how-to-add-policy).
For GPO and Intune, the extension developer should provide an ADMX file.
`Locked` prevents the user from changing cookie preferences.
+`Default` determines whether cookies are accepted at all. (*Deprecated*. Use `Behavior` instead)
+
+`AcceptThirdParty` determines how third-party cookies are handled. (*Deprecated*. Use `Behavior` instead)
+
+`RejectTracker` only rejects cookies for trackers. (*Deprecated*. Use `Behavior` instead)
+
+`ExpireAtSessionEnd` determines when cookies expire. (*Deprecated*. Use [`SanitizeOnShutdown`](#sanitizeonshutdown-selective) instead)
+
**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)\
**CCK2 Equivalent:** N/A\
**Preferences Affected:** `network.cookie.cookieBehavior`, `network.cookie.cookieBehavior.pbmode`, `network.cookie.lifetimePolicy`
Software\Policies\Mozilla\Firefox\Cookies\Allow\1 = "https://example.com"
Software\Policies\Mozilla\Firefox\Cookies\AllowSession\1 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Cookies\Block\1 = "https://example.org"
-Software\Policies\Mozilla\Firefox\Cookies\Default = 0x1 | 0x0
-Software\Policies\Mozilla\Firefox\Cookies\AcceptThirdParty = "always" | "never" | "from-visited"
-Software\Policies\Mozilla\Firefox\Cookies\ExpireAtSessionEnd = 0x1 | 0x0
-Software\Policies\Mozilla\Firefox\Cookies\RejectTracker = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Cookies\Behavior = "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign"
Software\Policies\Mozilla\Firefox\Cookies\BehaviorPrivateBrowsing = "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign"
Software\Policies\Mozilla\Firefox\Cookies\Locked = 0x1 | 0x0
```
OMA-URI:
```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Default
-```
-Value (string):
-```
-<enabled/> or <disabled/>
-```
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_AcceptThirdParty
-```
-Value (string):
-```
-<enabled/>
-<data id="Cookies_AcceptThirdParty" value="always | never | from-visited"/>
-```
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_ExpireAtSessionEnd
-```
-Value (string):
-```
-<enabled/> or <disabled/>
-```
-OMA-URI:
-```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_RejectTracker
-```
-Value (string):
-```
-<enabled/> or <disabled/>
-```
-OMA-URI:
-```
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Locked
```
Value (string):
<array>
<string>http://example.org</string>
</array>
- <key>Default</key>
- <true/> | <false/>
- <key>AcceptThirdParty</key>
- <string>always | never | from-visited</string>
- <key>ExpireAtSessionEnd</key>
- <true/> | <false/>
- <key>RejectTracker</key>
- <true/> | <false/>
<key>Locked</key>
<true/> | <false/>
<key>Behavior</key>
"Allow": ["http://example.org/"],
"AllowSession": ["http://example.edu/"],
"Block": ["http://example.edu/"],
- "Default": true | false,
- "AcceptThirdParty": "always" | "never" | "from-visited",
- "ExpireAtSessionEnd": true | false,
- "RejectTracker": true | false,
"Locked": true | false,
"Behavior": "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign",
"BehaviorPrivateBrowsing": "accept" | "reject-foreign" | "reject" | "limit-foreign" | "reject-tracker" | "reject-tracker-and-partition-foreign",
}
}
```
+### DisableEncryptedClientHello
+Disable the TLS Feature for Encrypted Client Hello. Note that TLS Client Hellos will still contain an ECH extension, but this extension will not be used by Firefox during the TLS handshake.
+
+**Compatibility:** Firefox 127, Firefox ESR 128\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.dns.echconfig.enabled`, `network.dns.http3_echconfig.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DisableEncryptedClientHello = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableEncryptedClientHello
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>DisableEncryptedClientHello</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableEncryptedClientHello": true | false
+ }
+}
+```
### DisableFirefoxAccounts
Disable Firefox Accounts integration (Sync).
**Compatibility:** Firefox 60, Firefox ESR 60\
**CCK2 Equivalent:** N/A\
-**Preferences Affected:** N/A
+**Preferences Affected:** `browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons`, `browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features`
#### Windows (GPO)
```
}
}
```
+### HttpAllowlist
+Configure sites that will not be upgraded to HTTPS.
+
+The sites are specified as a list of origins.
+
+**Compatibility:** Firefox 127\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\HttpAllowlist\1 = "http://example.org"
+Software\Policies\Mozilla\Firefox\HttpAllowlist\2 = "http://example.edu"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HttpAllowlist
+```
+Value (string):
+```
+<enabled/>
+<data id="List" value="1http://example.org2http://example.edu"/>
+```
+#### macOS
+```
+<dict>
+ <key>HttpAllowlist </key>
+ <array>
+ <string>http://example.org</string>
+ <string>http://example.edu</string>
+ </array>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "HttpAllowlist ": ["http://example.org",
+ "http://example.edu"]
+ }
+}
+```
+### HttpsOnlyMode
+Configure HTTPS-Only Mode.
+
+| Value | Description
+| --- | --- |
+| allowed | HTTPS-Only Mode is off by default, but the user can turn it on.
+| disallowed | HTTPS-Only Mode is off and the user can't turn it on.
+| enabled | HTTPS-Only Mode is on by default, but the user can turn it off.
+| force_enabled | HTTPS-Only Mode is on and the user can't turn it off.
+
+**Compatibility:** Firefox 127\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `dom.security.https_only_mode`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\HttpsOnlyMode = "allowed", "disallowed", "enabled", "force_enabled"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HttpsOnlyMode
+```
+Value (string):
+```
+<enabled/>
+<data id="HttpsOnlyMode" value="allowed | disallowed | enabled | force_enabled"/>
+```
+#### macOS
+```
+<dict>
+ <key>HttpsOnlyMode</key>
+ <string>allowed | disallowed | enabled| force_enabled</string>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "HttpsOnlyMode": "allowed" | "disallowed" | "enabled" | "force_enabled"
+ }
+}
+```
### InstallAddonsPermission
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.
**Compatibility:** Firefox 60, Firefox ESR 60\
**CCK2 Equivalent:** `permissions.install`\
-**Preferences Affected:** `xpinstall.enabled`
+**Preferences Affected:** `xpinstall.enabled`, `browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons`, `browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features`
#### Windows (GPO)
```
}
}
```
-
### PDFjs
Disable or configure PDF.js, the built-in PDF viewer.
}
}
```
+### PostQuantumKeyAgreementEnabled
+Enable post-quantum key agreement for TLS.
+
+**Compatibility:** Firefox 127\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `security.tls.enable_kyber`, `network.http.http3.enable_kyber` (Firefox 128)
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PostQuantumKeyAgreementEnabled = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PostQuantumKeyAgreementEnabled
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PostQuantumKeyAgreementEnabled</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PostQuantumKeyAgreementEnabled": true | false
+ }
+}
+```
### Preferences
Set and lock preferences.
places.
pref.
print.
+privacy.globalprivacycontrol.enabled (Firefox 127, Firefox ESR 128.0)
+privacy.userContext.enabled (Firefox 126, Firefox ESR 115.11)
+privacy.userContext.ui.enabled (Firefox 126, Firefox ESR 115.11)
signon. (Firefox 83, Firefox ESR 78.5)
spellchecker. (Firefox 84, Firefox ESR 78.6)
toolkit.legacyUserProfileCustomizations.stylesheets (Firefox 95, Firefox ESR 91.4)
| security.insecure_connection_text.pbmode.enabled | bool | false
| If set to true, adds the words "Not Secure" for insecure sites in private browsing.
| security.mixed_content.block_active_content | boolean | true
-| If false, mixed active content (HTTP and HTTPS) is not blocked.
+| If set to true, mixed active content (HTTP subresources such as scripts, fetch requests, etc. on a HTTPS page) will be blocked.
+| security.mixed_content.block_display_content | boolean | false
+| If set to true, mixed passive/display content (HTTP subresources such as images, videos, etc. on a HTTPS page) will be blocked. (Firefox 127, Firefox ESR 128.0)
+| security.mixed_content.upgrade_display_content | boolean | true
+| If set to true, mixed passive/display content (HTTP subresources such as images, videos, etc. on a HTTPS page) will be upgraded to HTTPS. (Firefox 127, Firefox ESR 128.0)
| security.osclientcerts.autoload | boolean | false
| If true, client certificates are loaded from the operating system certificate store.
| security.OCSP.enabled | integer | 1
}
}
```
+### StartDownloadsInTempDirectory
+Force downloads to start off in a local, temporary location rather than the default download directory.
+
+**Compatibility:** Firefox 102\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.download.start_downloads_in_tmp_dir`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\StartDownloadsInTempDirectory = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/StartDownloadsInTempDirectory
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>StartDownloadsInTempDirectory</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "StartDownloadsInTempDirectory": true | false
+}
+```
### SupportMenu
Add a menuitem to the help menu for specifying support information.
}
}
```
-### StartDownloadsInTempDirectory
-Force downloads to start off in a local, temporary location rather than the default download directory.
+### TranslateEnabled
+Enable or disable webpage translation.
-**Compatibility:** Firefox 102\
+Note: Web page translation is done completely on the client, so there is no data or privacy risk.
+
+If you only want to disable the popup, you can set the pref `browser.translations.automaticallyPopup` to false using the [Preferences](#preferences) policy.
+
+**Compatibility:** Firefox 126\
**CCK2 Equivalent:** N/A\
-**Preferences Affected:** `browser.download.start_downloads_in_tmp_dir`
+**Preferences Affected:** `browser.translations.enable`
#### Windows (GPO)
```
-Software\Policies\Mozilla\Firefox\StartDownloadsInTempDirectory = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\TranslateEnabled = 0x1 | 0x0
```
#### Windows (Intune)
OMA-URI:
```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/StartDownloadsInTempDirectory
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/TranslateEnabled
```
Value (string):
```
#### macOS
```
<dict>
- <key>StartDownloadsInTempDirectory</key>
+ <key>TranslateEnabled</key>
<true/> | <false/>
</dict>
```
```
{
"policies": {
- "StartDownloadsInTempDirectory": true | false
+ "TranslateEnabled": true | false
+ }
}
```
### UserMessaging
Prevent Firefox from messaging the user in certain situations.
-`WhatsNew` Remove the "What's New" icon and menuitem.
+`WhatsNew` Remove the "What's New" icon and menuitem. (*Deprecated*)
`ExtensionRecommendations` If false, don't recommend extensions while the user is visiting web pages.
**Compatibility:** Firefox 75, Firefox ESR 68.7\
**CCK2 Equivalent:** N/A\
-**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`
+**Preferences Affected:** `browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons`, `browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features`, `browser.aboutwelcome.enabled`, `browser.preferences.moreFromMozilla`
#### Windows (GPO)
```
-Software\Policies\Mozilla\Firefox\UserMessaging\WhatsNew = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\ExtensionRecommendations = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\FeatureRecommendations = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\UserMessaging\UrlbarInterventions = 0x1 | 0x0
#### Windows (Intune)
OMA-URI:
```
-./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_WhatsNew
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_ExtensionRecommendations
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_FeatureRecommendations
./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~UserMessaging/UserMessaging_UrlbarInterventions
<dict>
<key>UserMessaging</key>
<dict>
- <key>WhatsNew</key>
- <true/> | <false/>
<key>ExtensionRecommendations</key>
<true/> | <false/>
<key>FeatureRecommendations</key>
{
"policies": {
"UserMessaging": {
- "WhatsNew": true | false,
"ExtensionRecommendations": true | false,
"FeatureRecommendations": true | false,
"UrlbarInterventions": true | false,