| Policy Name | Description
| --- | --- |
-| **[`AppUpdateURL`](#AppUpdateURL)** | Change the URL for application update.
-| **[`Authentication`](#Authentication)** | Configure sites that support integrated authentication.
+| **[`AppAutoUpdate`](#appautoupdate)** | Enable or disable automatic application update.
+| **[`AppUpdateURL`](#appupdateurl)** | Change the URL for application update.
+| **[`Authentication`](#authentication)** | Configure sites that support integrated authentication.
| **[`BlockAboutAddons`](#blockaboutaddons)** | Block access to the Add-ons Manager (about:addons).
| **[`BlockAboutConfig`](#blockaboutconfig)** | Block access to about:config.
| **[`BlockAboutProfiles`](#blockaboutprofiles)** | Block access to About Profiles (about:profiles).
| **[`DisableFormHistory`](#disableformhistory)** | Turn off saving information on web forms and the search bar.
| **[`DisablePocket`](#disablepocket)** | Remove Pocket in the Firefox UI.
| **[`DisablePrivateBrowsing`](#disableprivatebrowsing)** | Remove access to private browsing.
+| **[`DisablePasswordReveal`](#disablepasswordreveal)** | Do not allow passwords to be revealed in saved logins.
| **[`DisableProfileImport`](#disableprofileimport)** | Disables the "Import data from another browser" option in the bookmarks window.
| **[`DisableProfileRefresh`](#disableprofilerefresh)** | Disable the Refresh Firefox button on about:support and support.mozilla.org
| **[`DisableSafeMode`](#disablesafemode)** | Disable safe mode within the browser.
| **[`SSLVersionMax`](#sslversionmax)** | Set and lock the maximum version of TLS.
| **[`SSLVersionMin`](#sslversionmin)** | Set and lock the minimum version of TLS.
| **[`SupportMenu`](#supportmenu)** | Add a menuitem to the help menu for specifying support information.
+| **[`UserMessaging`](#usermessaging)** | Don't show certain messages to the user.
| **[`WebsiteFilter`](#websitefilter)** | Block websites from being visited.
+### AppAutoUpdate
+
+Enable or disable **automatic** application update.
+
+If set to true, application updates are installed without user approval.
+
+If set to false, application updates are downloaded but the user can choose when to install the update.
+
+If you have disabled updates via DisableAppUpdate, this policy has no effect.
+
+**Compatibility:** Firefox 75, Firefox ESR 68.7\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** app.update.auto
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\AppAutoUpdate = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppAutoUpdate
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>AppAutoUpdate</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "AppAutoUpdate": true | false
+ }
+}
+```
### AppUpdateURL
Change the URL for application update.
```
Software\Policies\Mozilla\Firefox\AppUpdateURL = "https://yoursite.com"
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/AppUpdateURL
+```
+Value (string):
+```
+<enabled/>
+<data id="AppUpdateURL" value="https://yoursite.com"/>
+```
#### macOS
```
<dict>
Software\Policies\Mozilla\Firefox\Authentication\AllowProxies\NTLM = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\Authentication\Locked = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_SPNEGO
+```
+Value (string):
+```
+<enabled/>
+
+<data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_Delegated
+```
+Value (string):
+```
+<enabled/>
+
+<data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_NTLM
+```
+Value (string):
+```
+<enabled/>
+
+<data id="Authentication" value="1mydomain2https://myotherdomain.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Authentication/Authentication_AllowNonFQDN
+```
+Value (string):
+```
+<enabled/>
+
+<data id="Authentication_AllowNonFQDN_NTLM" value="true | false"/>
+<data id="Authentication_AllowNonFQDN_SPNEGO" value="true | false"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageStartPage
+```
+Value (string):
+```
+<enabled/>
+
+<data id="StartPage" value="none | homepage | previous-session"/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\BlockAboutAddons = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutAddons
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\BlockAboutConfig = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutConfig
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\BlockAboutProfiles = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutProfiles
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\BlockAboutSupport = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/BlockAboutSupport
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
Software\Policies\Mozilla\Firefox\Bookmarks\1\Placement = "toolbar" | "menu"
Software\Policies\Mozilla\Firefox\Bookmarks\1\Folder = "FolderName"
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Bookmarks/Bookmark01
+```
+Value (string):
+```
+<enabled/>
+<data id="BookmarkTitle" value="Example"/>
+<data id="BookmarkURL" value="https://example.com"/>
+<data id="BookmarkFavicon" value="https://example.com/favicon.ico"/>
+<data id="BookmarkPlacement" value="toolbar | menu"/>
+<data id="BookmarkFolder" value="FolderName"/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\CaptivePortal = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CaptivePortal
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\Certificates\ImportEnterpriseRoots = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_ImportEnterpriseRoots
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
Software\Policies\Mozilla\Firefox\Certificates\Install\1 = "cert1.der"
Software\Policies\Mozilla\Firefox\Certificates\Install\2 = "C:\Users\username\cert2.pem"
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Certificates/Certificates_Install
+```
+Value (string):
+```
+<enabled/>
+<data id="Certificates_Install" value="1cert1.der2C:\Users\username\cert2.pem"/>
+```
#### macOS
```
<dict>
Software\Policies\Mozilla\Firefox\Cookies\Allow\1 = "https://example.com"
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\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\Locked = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Cookies_Allow" value="1https://example.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Block
+```
+Value (string):
+```
+<enabled/>
+<data id="Cookies_Block" value="1https://example.org"/>
+```
+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):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableSetDesktopBackground = 0x1 | 0x0
```
-
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSetDesktopBackground
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableMasterPasswordCreation = 0x1 | 0x0
```
-
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableMasterPasswordCreation
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableAppUpdate = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableAppUpdate
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableBuiltinPDFViewer = 0x1 | 0x0
```
-
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableBuiltinPDFViewer
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableDefaultBrowserAgent = 0x1 | 0x0
```
-
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDefaultBrowserAgent
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### policies.json
```
{
```
Software\Policies\Mozilla\Firefox\DisableDeveloperTools = 0x1 | 0x0`
```
-
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableDeveloperTools
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableFeedbackCommands = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFeedbackCommands
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableFirefoxScreenshots = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxScreenshots
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableFirefoxAccounts = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxAccounts
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableFirefoxStudies = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFirefoxStudies
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableForgetButton = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableForgetButton
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableFormHistory = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableFormHistory
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisablePasswordReveal = 0x1 | 0x0
```
-
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePasswordReveal
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisablePocket = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePocket
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisablePrivateBrowsing = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisablePrivateBrowsing
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableProfileImport = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileImport
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableProfileRefresh = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableProfileRefresh
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisableSafeMode = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSafeMode
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
Software\Policies\Mozilla\Firefox\DisableSecurityBypass\InvalidCertificate = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\DisableSecurityBypass\SafeBrowsing = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_InvalidCertificate
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/P_DisableSecurityBypass_SafeBrowsing
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+
#### macOS
```
<dict>
**Preferences Affected:** N/A
#### Windows (GPO)
-```Software\Policies\Mozilla\Firefox\DisableSystemAddonUpdate = 0x1 | 0x0
+```
+Software\Policies\Mozilla\Firefox\DisableSystemAddonUpdate = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableSystemAddonUpdate
+```
+Value (string):
+```
+<enabled/> or <disabled/>
```
#### macOS
```
```
Software\Policies\Mozilla\Firefox\DisableTelemetry = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisableTelemetry
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisplayBookmarksToolbar = 0x1 | 0x0
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayBookmarksToolbar
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
#### macOS
```
<dict>
```
Software\Policies\Mozilla\Firefox\DisplayMenuBar = "always", "never", "default-on", "default-off"
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DisplayMenuBar_Enum
+```
+Value (string):
+```
+<enabled/>
+<data id="DisplayMenuBar" value="always | never | default-on | default-off"/>
+```
#### macOS
```
<dict>
`Locked` prevents the user from changing DNS over HTTPS preferences.
-**Compatibility:** Firefox 63, Firefox ESR 68\
+`ExcludedDomains` excludes domains from DNS over HTTPS.
+
+**Compatibility:** Firefox 63, Firefox ESR 68 (ExcludedDomains added in 75/68.7)\
**CCK2 Equivalent:** N/A\
**Preferences Affected:** `network.trr.mode`,`network.trr.uri`
Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Enabled = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ProviderURL = "URL_TO_ALTERNATE_PROVIDER"
Software\Policies\Mozilla\Firefox\DNSOverHTTPS\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\DNSOverHTTPS\ExcludedDomains\1 = "example.com"
```
#### macOS
```
<string>URL_TO_ALTERNATE_PROVIDER</string>
<key>Locked</key>
<true/> | <false/>
+ <key>ExcludedDomains</key>
+ <array>
+ <string>example.com</string>
+ </array>
</dict>
</dict>
```
"DNSOverHTTPS": {
"Enabled": true | false,
"ProviderURL": "URL_TO_ALTERNATE_PROVIDER",
- "Locked": true | false
+ "Locked": true | false,
+ "ExcludedDomains": ["example.com"]
}
}
}
Software\Policies\Mozilla\Firefox\Homepage\Additional\2 = "https://example.edu"
Software\Policies\Mozilla\Firefox\Homepage\StartPage = "none" | "homepage" | "previous-session"
```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageURL
+```
+Value (string):
+```
+<enabled/>
+
+<data id="HomepageURL" value="https://example.com"/>
+<data id="HomepageLocked" value="true | false"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageAdditional
+```
+Value (string):
+```
+<enabled/>
+
+<data id="HomepageAdditional" value="1http://example.org2http://example.edu"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Homepage/HomepageStartPage
+```
+Value (string):
+```
+<enabled/>
+
+<data id="StartPage" value="none | homepage | previous-session"/>
+```
#### macOS
```
<dict>
| --- | --- | --- | ---
| accessibility.force_disabled | integer | Firefox 70, Firefox ESR 68.2 | 0
| If set to 1, platform accessibility is disabled.
-| app.update.auto | boolean | Firefox 68, Firefox ESR 68 | true
+| app.update.auto (Deprecated - Switch to AppAutoUpdate policy) | boolean | Firefox 68, Firefox ESR 68 | true
| If false, Firefox doesn't automatically install update.
| browser.bookmarks.autoExportHTML | boolean | Firefox 70, Firefox ESR 68.2 | false
| If true, bookmarks are exported on shutdown.
}
}
```
+<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.
}
}
```
-
-
-
-
+<a name="SearchEngines"></a>
### SearchEngines (This policy is only available on the ESR.)
}
}
```
+### UserMessaging
+
+Prevent installing search engines from webpages.
+
+`WhatsNew` Remove the "What's New" icon and menuitem. (Firefox 75 only)
+
+`ExtensionRecommendations` Don't recommend extensions.
+
+`FeatureRecommendations` Don't recommend browser features.
+
+`UrlbarInterventions` Don't offer Firefox specific suggestions in the URL bar. (Firefox 75 only)
+
+**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`
+
+#### 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
+```
+#### macOS
+```
+<dict>
+ <key>UserMessaging</key>
+ <dict>
+ <key>WhatsNew</key>
+ <true/> | <false/>
+ <key>ExtensionRecommendations</key>
+ <true/> | <false/>
+ <key>FeatureRecommendations</key>
+ <true/> | <false/>
+ <key>UrlbarInterventions</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "UserMessaging": {
+ "WhatsNew": true | false,
+ "ExtensionRecommendations": true | false,
+ "FeatureRecommendations": true | false,
+ "UrlbarInterventions": true | false
+ }
+ }
+}
+```
### WebsiteFilter
Block websites from being visited. The parameters take an array of Match Patterns, as documented in https://developer.mozilla.org/en-US/Add-ons/WebExtensions/Match_patterns. Only http/https addresses are supported at the moment. The arrays are limited to 1000 entries each.
#### Windows (GPO)
```
-Software\Policies\Mozilla\Firefox\WebsiteFilters\Block\1 = "<all_urls>"
-Software\Policies\Mozilla\Firefox\WebsiteFilters\Exceptions\1 = "http://example.org/*"
+Software\Policies\Mozilla\Firefox\WebsiteFilter\Block\1 = "<all_urls>"
+Software\Policies\Mozilla\Firefox\WebsiteFilter\Exceptions\1 = "http://example.org/*"
```
#### macOS
```