Add missing pref

[policy-templates.git] / docs / index.md

diff --git a/docs/index.md b/docs/index.md
index 8eaf0ab5f2e38e8d1098d1b1519be02293673f4a..7e059adb82a55fb6b8ab7f44893dbd7ff1ea0dac 100644 (file)
--- a/docs/index.md
+++ b/docs/index.md
@@ -1,7 +1,6 @@
 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:
 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": {
 ```
 {
   "policies": {


@@ -12,6 +11,7 @@ Unfortunately, JSON files do not support comments, but you can add extra entries
   }
 }
 ```
   }
 }
 ```

+Note: The `policies.json` must use the UTF-8 encoding.

 
 | Policy Name | Description
 | --- | --- |
 
 | Policy Name | Description
 | --- | --- |


@@ -43,6 +43,7 @@ Unfortunately, JSON files do not support comments, but you can add extra entries
 | **[`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.
 | **[`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.
 | **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
 | **[`DisableFirefoxAccounts`](#disablefirefoxaccounts)** | Disable Firefox Accounts integration (Sync).
 | **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.


@@ -79,6 +80,8 @@ Unfortunately, JSON files do not support comments, but you can add extra entries
 | **[`Handlers`](#handlers)** | Configure default application handlers.
 | **[`HardwareAcceleration`](#hardwareacceleration)** | Control hardware acceleration.
 | **[`Homepage`](#homepage)** | Configure the default homepage and how Firefox starts.
 | **[`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.
 | **[`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.


@@ -99,6 +102,7 @@ Unfortunately, JSON files do not support comments, but you can add extra entries
 | **[`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.
 | **[`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.
 | **[`Preferences`](#preferences)** | Set and lock preferences.
 | **[`PrimaryPassword`](#primarypassword)** | Require or prevent using a primary (formerly master) password.
 | **[`PrintingEnabled`](#printingenabled)** | Enable or disable printing.


@@ -664,6 +668,18 @@ Value (string):
   }
 ]'/>
 ```
   }
 ]'/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/AutoLaunchProtocolsFromOriginsOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='[]'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -930,6 +946,18 @@ Value (string):
 <enabled/>
 <data id="JSON" value='[]'/>
 ```
 <enabled/>
 <data id="JSON" value='[]'/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/BookmarksOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='[]'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -1163,6 +1191,18 @@ Value (string):
 }
 '/>
 ```
 }
 '/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ContainersOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='{}'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -1623,6 +1663,41 @@ Value (string):
   }
 }
 ```
   }
 }
 ```

+### 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).
 
 ### DisableFirefoxAccounts
 Disable Firefox Accounts integration (Sync).
 


@@ -2713,6 +2788,18 @@ Value (string):
 ]
 '/>
 ```
 ]
 '/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExemptDomainFileTypePairsFromFileTypeDownloadWarningsOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='[]'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -2900,6 +2987,18 @@ Value (string):
   }
 }'/>
 ```
   }
 }'/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettingsOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='{}'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -3283,6 +3382,18 @@ Value (string):
 }
 '/>
 ```
 }
 '/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/HandlersOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='{}'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -3499,6 +3610,92 @@ Value (string):
   }
 }
 ```
   }
 }
 ```

+### 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&#xF000;http://example.org&#xF000;2&#xF000;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.
 
 ### 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.
 


@@ -3801,6 +3998,18 @@ Value (string):
   }
 ]'/>
 ```
   }
 ]'/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ManagedBoomarksOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='[]'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -4163,7 +4372,7 @@ Remove access to the password manager via preferences and blocks about:logins on
 
 **Compatibility:** Firefox 70, Firefox ESR 60.2\
 **CCK2 Equivalent:** N/A\
 
 **Compatibility:** Firefox 70, Firefox ESR 60.2\
 **CCK2 Equivalent:** N/A\

-**Preferences Affected:** `pref.privacy.disable_button.view_passwords`
+**Preferences Affected:** `pref.privacy.disable_button.view_passwords`, `signon.rememberSignons`

 
 #### Windows (GPO)
 ```
 
 #### Windows (GPO)
 ```


@@ -4236,7 +4445,6 @@ Value (string):
   }
 }
 ```
   }
 }
 ```

-

 ### PDFjs
 Disable or configure PDF.js, the built-in PDF viewer.
 
 ### PDFjs
 Disable or configure PDF.js, the built-in PDF viewer.
 


@@ -4690,6 +4898,41 @@ Value (string):
   }
 }
 ```
   }
 }
 ```

+### 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.
 
 ### Preferences
 Set and lock preferences.
 


@@ -4843,6 +5086,18 @@ Value (string):
   }
 }'/>
 ```
   }
 }'/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/PreferencesOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='{}'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>


@@ -5282,13 +5537,32 @@ or
 <a name="SanitizeOnShutdown"></a>
 
 ### SanitizeOnShutdown (Selective)
 <a name="SanitizeOnShutdown"></a>
 
 ### SanitizeOnShutdown (Selective)

-Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.
+Clear data on shutdown.
+
+Note: Starting with Firefox 128, History clears FormData and Downloads as well.
+
+`Cache`
+
+`Cookies`
+
+`Downloads` Download History (*Deprecated*)
+
+`FormData` Form & Search History (*Deprecated*)
+
+`History` Browsing History, Download History, Form & Search History.
+
+`Sessions` Active Logins
+
+`SiteSettings` Site Preferences

 
 

-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.
+`OfflineApps` Offline Website Data.

 
 

-**Compatibility:** Firefox 68, Firefox ESR 68 (Locked added in 74/68.6)\
+`Locked` prevents the user from changing these preferences.
+
+**Compatibility:** Firefox 68, Firefox ESR 68 (Locked added in 74/68.6, History update in Firefox 128)\

 **CCK2 Equivalent:** N/A\
 **CCK2 Equivalent:** N/A\

-**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`
+**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`, `privacy.clearOnShutdown_v2.historyFormDataAndDownloads` (Firefox 128), `privacy.clearOnShutdown_v2.cookiesAndStorage` (Firefox 128), `privacy.clearOnShutdown_v2.cache` (Firefox 128), `privacy.clearOnShutdown_v2.siteSettings` (Firefox 128)
+

 #### Windows (GPO)
 ```
 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cache = 0x1 | 0x0
 #### Windows (GPO)
 ```
 Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Cache = 0x1 | 0x0


@@ -6107,7 +6381,7 @@ Value (string):
 
 Prevent Firefox from messaging the user in certain situations.
 
 
 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.
 
 
 `ExtensionRecommendations` If false, don't recommend extensions while the user is visiting web pages.
 


@@ -6123,11 +6397,10 @@ Prevent Firefox from messaging the user in certain situations.
 
 **Compatibility:** Firefox 75, Firefox ESR 68.7\
 **CCK2 Equivalent:** N/A\
 
 **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)
 ```
 
 #### 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
 Software\Policies\Mozilla\Firefox\UserMessaging\ExtensionRecommendations = 0x1 | 0x0
 Software\Policies\Mozilla\Firefox\UserMessaging\FeatureRecommendations = 0x1 | 0x0
 Software\Policies\Mozilla\Firefox\UserMessaging\UrlbarInterventions = 0x1 | 0x0


@@ -6138,7 +6411,6 @@ Software\Policies\Mozilla\Firefox\UserMessaging\Locked = 0x1 | 0x0
 #### Windows (Intune)
 OMA-URI:
 ```
 #### 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
 ./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


@@ -6155,8 +6427,6 @@ Value (string):
 <dict>
   <key>UserMessaging</key>
   <dict>
 <dict>
   <key>UserMessaging</key>
   <dict>

-    <key>WhatsNew</key>
-    <true/> | <false/>

     <key>ExtensionRecommendations</key>
     <true/> | <false/>
     <key>FeatureRecommendations</key>
     <key>ExtensionRecommendations</key>
     <true/> | <false/>
     <key>FeatureRecommendations</key>


@@ -6177,7 +6447,6 @@ Value (string):
 {
   "policies": {
     "UserMessaging": {
 {
   "policies": {
     "UserMessaging": {

-      "WhatsNew": true | false,

       "ExtensionRecommendations": true | false,
       "FeatureRecommendations": true | false,
       "UrlbarInterventions": true | false,
       "ExtensionRecommendations": true | false,
       "FeatureRecommendations": true | false,
       "UrlbarInterventions": true | false,


@@ -6260,6 +6529,18 @@ Value (string):
 <enabled/>
 <data id="WebsiteFilter" value="1&#xF000;http://example.org/*"/>
 ```
 <enabled/>
 <data id="WebsiteFilter" value="1&#xF000;http://example.org/*"/>
 ```

+If you are using custom ADMX and ADML administrative templates in Intune, you can use this OMA-URI instead
+to workaround the limit on the length of strings. Put all of your JSON on one line.
+
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/WebsiteFilterOneLine
+```
+Value (string):
+```
+<enabled/>
+<data id="JSONOneLine" value='{"Block": ["<all_urls>"],"Exceptions": ["http://example.org/*"]}'/>
+```

 #### macOS
 ```
 <dict>
 #### macOS
 ```
 <dict>