+ "BlockAboutConfig": true | false
+ }
+}
+```
+### BlockAboutProfiles
+
+Block access to About Profiles (about:profiles).
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableAboutProfiles`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>BlockAboutProfiles</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "BlockAboutProfiles": true | false
+ }
+}
+```
+### BlockAboutSupport
+
+Block access to Troubleshooting Information (about:support).
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableAboutSupport`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>BlockAboutSupport</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "BlockAboutSupport": true | false
+ }
+}
+```
+### Bookmarks
+
+Note: [`ManagedBookmarks`](#managedbookmarks) is the new recommended way to add bookmarks. This policy will continue to be supported.
+
+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.
+
+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.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `bookmarks.toolbar`,`bookmarks.menu`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Bookmarks\1\Title = "Example"
+Software\Policies\Mozilla\Firefox\Bookmarks\1\URL = "https://example.com"
+Software\Policies\Mozilla\Firefox\Bookmarks\1\Favicon = "https://example.com/favicon.ico"
+Software\Policies\Mozilla\Firefox\Bookmarks\1\Placement = "toolbar" | "menu"
+Software\Policies\Mozilla\Firefox\Bookmarks\1\Folder = "FolderName"
+
+Software\Policies\Mozilla\Firefox\Bookmarks (REG_MULTI_SZ) =
+```
+[]
+```
+
+```
+#### 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"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Bookmarks
+```
+Value (string):
+```
+<enabled/>
+<data id="JSON" value='[]'/>
+```
+#### macOS
+```
+<dict>
+ <key>Bookmarks</key>
+ <array>
+ <dict>
+ <key>Title</key>
+ <string>Example</string>
+ <key>URL</key>
+ <string>https://example.com</string>
+ <key>Favicon</key>
+ <string>https://example.com/favicon.ico</string>
+ <key>Placement</key>
+ <string>toolbar | menu</string>
+ <key>Folder</key>
+ <string>FolderName</string>
+ </dict>
+ </array>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Bookmarks": [
+ {
+ "Title": "Example",
+ "URL": "https://example.com",
+ "Favicon": "https://example.com/favicon.ico",
+ "Placement": "toolbar" | "menu",
+ "Folder": "FolderName"
+ }
+ ]
+ }
+}
+```
+### CaptivePortal
+Enable or disable the detection of captive portals.
+
+**Compatibility:** Firefox 67, Firefox ESR 60.7\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.captive-portal-service.enabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>CaptivePortal</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "CaptivePortal": true | false
+ }
+}
+```
+### Certificates
+
+### Certificates | ImportEnterpriseRoots
+
+Trust certificates that have been added to the operating system certificate store by a user or administrator.
+
+Note: This policy only works on Windows and macOS. For Linux discussion, see [bug 1600509](https://bugzilla.mozilla.org/show_bug.cgi?id=1600509).
+
+See https://support.mozilla.org/kb/setting-certificate-authorities-firefox for more detail.
+
+**Compatibility:** Firefox 60, Firefox ESR 60 (macOS support in Firefox 63, Firefox ESR 68)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `security.enterprise_roots.enabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>Certificates</key>
+ <dict>
+ <key>ImportEnterpriseRoots</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Certificates": {
+ "ImportEnterpriseRoots": true | false
+ }
+ }
+}
+```
+### Certificates | Install
+
+Install certificates into the Firefox certificate store. If only a filename is specified, Firefox searches for the file in the following locations:
+
+- Windows
+ - %USERPROFILE%\AppData\Local\Mozilla\Certificates
+ - %USERPROFILE%\AppData\Roaming\Mozilla\Certificates
+- macOS
+ - /Library/Application Support/Mozilla/Certificates
+ - ~/Library/Application Support/Mozilla/Certificates
+- Linux
+ - /usr/lib/mozilla/certificates
+ - /usr/lib64/mozilla/certificates
+ - ~/.mozilla/certificates
+
+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.
+
+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.
+
+Certificates are installed using the trust string `CT,CT,`.
+
+Binary (DER) and ASCII (PEM) certificates are both supported.
+
+**Compatibility:** Firefox 64, Firefox ESR 64\
+**CCK2 Equivalent:** `certs.ca`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>Certificates</key>
+ <dict>
+ <key>Install</key>
+ <array>
+ <string>cert1.der</string>
+ <string>/Users/username/cert2.pem</string>
+ </array>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Certificates": {
+ "Install": ["cert1.der", "/home/username/cert2.pem"]
+ }
+ }
+}
+```
+### Cookies
+Configure cookie preferences.
+
+`Allow` is a list of origins (not domains) where cookies are always allowed. You must include http or https.
+
+`AllowSession` is a list of origins (not domains) where cookies are only allowed for the current session. You must include http or https.
+
+`Block` is a list of origins (not domains) where cookies are always blocked. You must include http or https.
+
+`Behavior` sets the default behavior for cookies based on the values below.
+
+`BehaviorPrivateBrowsing` sets the default behavior for cookies in private browsing based on the values below.
+
+| Value | Description
+| --- | ---
+| accept | Accept all cookies
+| reject-foreign | Reject third party cookies
+| reject | Reject all cookies
+| limit-foreign | Reject third party cookies for sites you haven't visited
+| reject-tracker | Reject cookies for known trackers (default)
+| reject-tracker-and-partition-foreign | Reject cookies for known trackers and partition third-party cookies (Total Cookie Protection) (default for private browsing)
+
+`Default` (Deprecated) determines whether cookies are accepted at all.
+
+`AcceptThirdParty` (Deprecated) determines how third-party cookies are handled.
+
+`ExpireAtSessionEnd` determines when cookies expire.
+
+`RejectTracker` (Deprecated) only rejects cookies for trackers.
+
+`Locked` prevents the user from changing cookie preferences.
+
+**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`
+
+#### Windows (GPO)
+```
+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
+```
+#### 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_AllowSession
+```
+Value (string):
+```
+<enabled/>
+<data id="Cookies_Allow" value="1https://example.edu"/>
+```
+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/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_Behavior
+```
+Value (string):
+```
+<enabled/>
+<data id="Cookies_Behavior" value="accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Cookies/Cookies_BehaviorPrivateBrowsing
+```
+Value (string):
+```
+<enabled/>
+<data id="Cookies_BehaviorPrivateBrowsing" value="accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign"/>
+```
+#### macOS
+```
+<dict>
+ <key>Cookies</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>http://example.com</string>
+ </array>
+ <key>AllowSession</key>
+ <array>
+ <string>http://example.edu</string>
+ </array>
+ <key>Block</key>
+ <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>
+ <string>accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign</string>
+ <key>BehaviorPrivateBrowsing</key>
+ <string>accept | reject-foreign | reject | limit-foreign | reject-tracker | reject-tracker-and-partition-foreign</string>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Cookies": {
+ "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",
+ }
+ }
+}
+```
+### DefaultDownloadDirectory
+Set the default download directory.
+
+You can use ${home} for the native home directory.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.download.dir`, `browser.download.folderList`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DefaultDownloadDirectory = "${home}\Downloads"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DefaultDownloadDirectory
+```
+Value (string):
+```
+<enabled/>
+<data id="Preferences_String" value="${home}\Downloads"/>
+```
+#### macOS
+```
+<dict>
+ <key>DefaultDownloadDirectory</key>
+ <string>${home}/Downloads</string>
+</dict>
+```
+#### policies.json (macOS and Linux)
+```
+{
+ "policies": {
+ "DefaultDownloadDirectory": "${home}/Downloads"
+}
+```
+#### policies.json (Windows)
+```
+{
+ "policies": {
+ "DefaultDownloadDirectory": "${home}\\Downloads"
+}
+```
+### DisableAppUpdate
+Turn off application updates within Firefox.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableFirefoxUpdates`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableAppUpdate</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableAppUpdate": true | false
+ }
+}
+```
+### DisableBuiltinPDFViewer
+Disable the built in PDF viewer. PDF files are downloaded and sent externally.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disablePDFjs`\
+**Preferences Affected:** `pdfjs.disabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableBuiltinPDFViewer</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableBuiltinPDFViewer": true | false
+ }
+}
+```
+### DisabledCiphers
+Disable specific cryptographic ciphers, listed below.
+
+```
+TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
+TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
+TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256
+TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256
+TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
+TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
+TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
+TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
+TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
+TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
+TLS_DHE_RSA_WITH_AES_128_CBC_SHA
+TLS_DHE_RSA_WITH_AES_256_CBC_SHA
+TLS_RSA_WITH_AES_128_GCM_SHA256
+TLS_RSA_WITH_AES_256_GCM_SHA384
+TLS_RSA_WITH_AES_128_CBC_SHA
+TLS_RSA_WITH_AES_256_CBC_SHA
+TLS_RSA_WITH_3DES_EDE_CBC_SHA
+```
+
+**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`
+
+---
+**Note:**
+
+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.
+
+---
+**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)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DisabledCiphers\CIPHER_NAME = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DisabledCiphers/DisabledCiphers_CIPHER_NAME
+
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>DisabledCiphers</key>
+ <dict>
+ <key>CIPHER_NAME</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisabledCiphers": {
+ "CIPHER_NAME": true | false,
+ }
+ }
+}
+```
+### DisableDefaultBrowserAgent
+Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.
+
+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).
+
+**Compatibility:** Firefox 75, Firefox ESR 68.7 (Windows only)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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
+```
+{
+ "policies": {
+ "DisableDefaultBrowserAgent": true | false
+ }
+}
+```
+### DisableDeveloperTools
+Remove access to all developer tools.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `removeDeveloperTools`\
+**Preferences Affected:** `devtools.policy.disabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableDeveloperTools</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableDeveloperTools": true | false
+ }
+}
+```
+### DisableFeedbackCommands
+Disable the menus for reporting sites (Submit Feedback, Report Deceptive Site).
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableFeedbackCommands</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableFeedbackCommands": true | false
+ }
+}
+```
+### DisableFirefoxAccounts
+Disable Firefox Accounts integration (Sync).
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableSync`\
+**Preferences Affected:** `identity.fxaccounts.enabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableFirefoxAccounts</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableFirefoxAccounts": true | false
+ }
+}
+```
+### DisableFirefoxScreenshots
+Remove access to Firefox Screenshots.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `extensions.screenshots.disabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableFirefoxScreenshots</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableFirefoxScreenshots": true | false
+ }
+}
+```
+### DisableFirefoxStudies
+Disable Firefox studies (Shield).
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableFirefoxStudies</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableFirefoxStudies": true | false
+ }
+}
+```
+### DisableForgetButton
+Disable the "Forget" button.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableForget`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableForgetButton</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableForgetButton": true | false
+ }
+}
+```
+### DisableFormHistory
+Turn off saving information on web forms and the search bar.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableFormFill`\
+**Preferences Affected:** `browser.formfill.enable`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableFormHistory</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableFormHistory": true | false
+ }
+}
+```
+### DisableMasterPasswordCreation
+Remove the master password functionality.
+
+If this value is true, it works the same as setting [`PrimaryPassword`](#primarypassword) to false and removes the primary password functionality.
+
+If both `DisableMasterPasswordCreation` and `PrimaryPassword` are used, `DisableMasterPasswordCreation` takes precedent.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `noMasterPassword`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableMasterPasswordCreation</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableMasterPasswordCreation": true | false
+ }
+}
+```
+### DisablePasswordReveal
+Do not allow passwords to be shown in saved logins
+
+**Compatibility:** Firefox 71, Firefox ESR 68.3\
+**CCK2 Equivalent:** N/A
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisablePasswordReveal</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisablePasswordReveal": true | false
+ }
+}
+```
+### DisablePocket
+Remove Pocket in the Firefox UI. It does not remove it from the new tab page.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disablePocket`\
+**Preferences Affected:** `extensions.pocket.enabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisablePocket</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisablePocket": true | false
+ }
+}
+```
+### DisablePrivateBrowsing
+Remove access to private browsing.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disablePrivateBrowsing`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisablePrivateBrowsing</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisablePrivateBrowsing": true | false
+ }
+}
+```
+### DisableProfileImport
+Disables the "Import data from another browser" option in the bookmarks window.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableProfileImport</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableProfileImport": true | false
+ }
+}
+```
+### DisableProfileRefresh
+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.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableResetFirefox`\
+**Preferences Affected:** `browser.disableResetPrompt`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableProfileRefresh</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableProfileRefresh": true | false
+ }
+}
+```
+### DisableSafeMode
+Disable safe mode within the browser.
+
+On Windows, this disables safe mode via the command line as well.
+
+**Compatibility:** Firefox 60, Firefox ESR 60 (Windows, macOS)\
+**CCK2 Equivalent:** `disableSafeMode`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableSafeMode</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableSafeMode": true | false
+ }
+}
+```
+### DisableSecurityBypass
+Prevent the user from bypassing security in certain cases.
+
+`InvalidCertificate` prevents adding an exception when an invalid certificate is shown.
+
+`SafeBrowsing` prevents selecting "ignore the risk" and visiting a harmful site anyway.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `security.certerror.hideAddException`, `browser.safebrowsing.allowOverride`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableSecurityBypass</key>
+ <dict>
+ <key>InvalidCertificate</key>
+ <true/> | <false/>
+ <key>SafeBrowsing</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableSecurityBypass": {
+ "InvalidCertificate": true | false,
+ "SafeBrowsing": true | false
+ }
+ }
+}
+```
+### DisableSetDesktopBackground
+Remove the "Set As Desktop Background..." menuitem when right clicking on an image.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `removeSetDesktopBackground`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableSetDesktopBackground</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableSetDesktopBackground": true | false
+ }
+}
+```
+### DisableSystemAddonUpdate
+Prevent system add-ons from being installed or update.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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
+```
+<dict>
+ <key>DisableSystemAddonUpdate</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableSystemAddonUpdate": true | false
+ }
+}
+```
+### DisableTelemetry
+Prevent the upload of telemetry data.
+
+As of Firefox 83 and Firefox ESR 78.5, local storage of telemetry data is disabled as well.
+
+Mozilla recommends that you do not disable telemetry. Information collected through telemetry helps us build a better product for businesses like yours.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `disableTelemetry`\
+**Preferences Affected:** `datareporting.healthreport.uploadEnabled`, `datareporting.policy.dataSubmissionEnabled`, `toolkit.telemetry.archive.enabled`
+
+#### Windows (GPO)
+```
+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>
+ <key>DisableTelemetry</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisableTelemetry": true | false
+ }
+}
+```
+### DisplayBookmarksToolbar
+Set the initial state of the bookmarks toolbar. A user can still hide it and it will stay hidden.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `displayBookmarksToolbar`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisplayBookmarksToolbar</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisplayBookmarksToolbar": true | false
+ }
+}
+```
+### DisplayMenuBar
+Set the state of the menubar.
+
+`always` means the menubar is shown and cannot be hidden.
+
+`never` means the menubar is hidden and cannot be shown.
+
+`default-on` means the menubar is on by default but can be hidden.
+
+`default-off` means the menubar is off by default but can be shown.
+
+**Compatibility:** Firefox 73, Firefox ESR 68.5 (Windows, some Linux)\
+**CCK2 Equivalent:** `displayMenuBar`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+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>
+ <key>DisplayMenuBar</key>
+ <string>always | never | default-on | default-off</string>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisplayMenuBar": "always", "never", "default-on", "default-off"
+ }
+}
+```
+### DisplayMenuBar (Deprecated)
+Set the initial state of the menubar. A user can still hide it and it will stay hidden.
+
+**Compatibility:** Firefox 60, Firefox ESR 60 (Windows, some Linux)\
+**CCK2 Equivalent:** `displayMenuBar`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DisplayMenuBar = 0x1 | 0x0
+```
+#### macOS
+```
+<dict>
+ <key>DisplayMenuBar</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisplayMenuBar": true | false
+ }
+}
+```
+### DNSOverHTTPS
+Configure DNS over HTTPS.
+
+`Enabled` determines whether DNS over HTTPS is enabled
+
+`ProviderURL` is a URL to another provider.
+
+`Locked` prevents the user from changing DNS over HTTPS preferences.
+
+`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`
+
+#### Windows (GPO)
+```
+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"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Enabled
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ProviderURL
+```
+Value (string):
+```
+<enabled/>
+<data id="String" value="URL_TO_ALTERNATE_PROVIDER"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~DNSOverHTTPS/DNSOverHTTPS_ExcludedDomains
+```
+Value (string):
+```
+<enabled/>
+<data id="List" value="1example.com"/>
+```
+#### macOS
+```
+<dict>
+ <key>DNSOverHTTPS</key>
+ <dict>
+ <key>Enabled</key>
+ <true/> | <false/>
+ <key>ProviderURL</key>
+ <string>URL_TO_ALTERNATE_PROVIDER</string>
+ <key>Locked</key>
+ <true/> | <false/>
+ <key>ExcludedDomains</key>
+ <array>
+ <string>example.com</string>
+ </array>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DNSOverHTTPS": {
+ "Enabled": true | false,
+ "ProviderURL": "URL_TO_ALTERNATE_PROVIDER",
+ "Locked": true | false,
+ "ExcludedDomains": ["example.com"]
+ }
+ }
+}
+```
+### DontCheckDefaultBrowser
+Don't check if Firefox is the default browser at startup.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `dontCheckDefaultBrowser`\
+**Preferences Affected:** `browser.shell.checkDefaultBrowser`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DontCheckDefaultBrowser = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DontCheckDefaultBrowser
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>DontCheckDefaultBrowser</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DontCheckDefaultBrowser": true | false
+ }
+}
+```
+### DownloadDirectory
+Set and lock the download directory.
+
+You can use ${home} for the native home directory.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.download.dir`, `browser.download.folderList`, `browser.download.useDownloadDir`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\DownloadDirectory = "${home}\Downloads"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/DownloadDirectory
+```
+Value (string):
+```
+<enabled/>
+<data id="Preferences_String" value="${home}\Downloads"/>
+```
+#### macOS
+```
+<dict>
+ <key>DownloadDirectory</key>
+ <string>${home}/Downloads</string>
+</dict>
+```
+#### policies.json (macOS and Linux)
+```
+{
+ "policies": {
+ "DownloadDirectory": "${home}/Downloads"
+}
+```
+#### policies.json (Windows)
+```
+{
+ "policies": {
+ "DownloadDirectory": "${home}\\Downloads"
+}
+```
+### EnableTrackingProtection
+Configure tracking protection.
+
+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.
+
+If `Value` is set to false, tracking protection is disabled and locked in both the regular browser and private browsing.
+
+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.
+
+If `Cryptomining` is set to true, cryptomining scripts on websites are blocked.
+
+If `Fingerprinting` is set to true, fingerprinting scripts on websites are blocked.
+
+`Exceptions` are origins for which tracking protection is not enabled.
+
+**Compatibility:** Firefox 60, Firefox ESR 60 (Cryptomining and Fingerprinting added in 70/68.2, Exceptions added in 73/68.5)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `privacy.trackingprotection.enabled`, `privacy.trackingprotection.pbmode.enabled`, `privacy.trackingprotection.cryptomining.enabled`, `privacy.trackingprotection.fingerprinting.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Value = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Cryptomining = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Fingerprinting = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\EnableTrackingProtection\Exceptions\1 = "https://example.com"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/A_TrackingProtection_Value
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/B_TrackingProtection_Cryptomining
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/C_TrackingProtection_Fingerprinting
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/D_TrackingProtection_Exceptions
+```
+Value (string):
+```
+<data id="TrackingProtection_Exceptions" value="1https://example.com"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~TrackingProtection/E_TrackingProtection_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>EnableTrackingProtection</key>
+ <dict>
+ <key>Value</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ <key>Cryptomining</key>
+ <true/> | <false/>
+ <key>Fingerprinting</key>
+ <true/> | <false/>
+ <key>Exceptions</key>
+ <array>
+ <string>https://example.com</string>
+ </array>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "EnableTrackingProtection": {
+ "Value": true | false,
+ "Locked": true | false,
+ "Cryptomining": true | false,
+ "Fingerprinting": true | false,
+ "Exceptions": ["https://example.com"]
+ }
+ }
+}
+```
+### EncryptedMediaExtensions
+Enable or disable Encrypted Media Extensions and optionally lock it.
+
+If `Enabled` is set to false, encrypted media extensions (like Widevine) are not downloaded by Firefox unless the user consents to installing them.
+
+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.
+
+**Compatibility:** Firefox 77, Firefox ESR 68.9\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `media.eme.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Enabled = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\EncryptedMediaExtensions\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Enabled
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~EncryptedMediaExtensions/EncryptedMediaExtensions_Locked
+```
+Value (string):
+```
+<enabled/>or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>EncryptedMediaExtensions</key>
+ <dict>
+ <key>Enabled</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "EncryptedMediaExtensions": {
+ "Enabled": true | false,
+ "Locked": true | false
+ }
+ }
+}
+```
+### EnterprisePoliciesEnabled
+Enable policy support on macOS.
+
+**Compatibility:** Firefox 63, Firefox ESR 60.3 (macOS only)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### macOS
+```
+<dict>
+ <key>EnterprisePoliciesEnabled</key>
+ <true/>
+</dict>
+```
+### Extensions
+Control the installation, uninstallation and locking of extensions.
+
+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.
+
+`Install` is a list of URLs or native paths for extensions to be installed.
+
+`Uninstall` is a list of extension IDs that should be uninstalled if found.
+
+`Locked` is a list of extension IDs that the user cannot disable or uninstall.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `addons`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Extensions\Install\1 = "https://addons.mozilla.org/firefox/downloads/somefile.xpi"
+Software\Policies\Mozilla\Firefox\Extensions\Install\2 = "//path/to/xpi"
+Software\Policies\Mozilla\Firefox\Extensions\Uninstall\1 = "bad_addon_id@mozilla.org"
+Software\Policies\Mozilla\Firefox\Extensions\Locked\1 = "addon_id@mozilla.org"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Install
+```
+Value (string):
+```
+<enabled/>
+<data id="Extensions" value="1https://addons.mozilla.org/firefox/downloads/somefile.xpi2//path/to/xpi"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Uninstall
+```
+Value (string):
+```
+<enabled/>
+<data id="Extensions" value="1bad_addon_id@mozilla.org"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/Extensions_Locked
+```
+Value (string):
+```
+<enabled/>
+<data id="Extensions" value="1addon_id@mozilla.org"/>
+```
+#### macOS
+```
+<dict>
+ <key>Extensions</key>
+ <dict>
+ <key>Install</key>
+ <array>
+ <string>https://addons.mozilla.org/firefox/downloads/somefile.xpi</string>
+ <string>//path/to/xpi</string>
+ </array>
+ <key>Uninstall</key>
+ <array>
+ <string>bad_addon_id@mozilla.org</string>
+ </array>
+ <key>Locked</key>
+ <array>
+ <string>addon_id@mozilla.org</string>
+ </array>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Extensions": {
+ "Install": ["https://addons.mozilla.org/firefox/downloads/somefile.xpi", "//path/to/xpi"],
+ "Uninstall": ["bad_addon_id@mozilla.org"],
+ "Locked": ["addon_id@mozilla.org"]
+ }
+ }
+}
+```
+### ExtensionSettings
+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.
+
+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.
+
+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).
+
+The configuration for each extension is another dictionary that can contain the fields documented below.
+
+| Name | Description |
+| --- | --- |
+| `installation_mode` | Maps to a string indicating the installation mode for the extension. The valid strings are `allowed`,`blocked`,`force_installed`, and `normal_installed`.
+| `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.
+| `blocked`| Blocks installation of the extension and removes it from the device if already installed.
+| `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.
+| `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.
+| `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.
+| `install_sources` | A list of sources from which installing extensions is allowed. **This is unnecessary if you are only allowing the installation of certain extensions by ID.** Each item in this list is an extension-style match pattern. Users will be able to easily install items from any URL that matches an item in this list. Both the location of the *.xpi file and the page where the download is started from (i.e. the referrer) must be allowed by these patterns. This setting can be used only for the default configuration.
+| `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.
+| `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.
+| `restricted_domains` | An array of domains on which content scripts can't be run. This setting can be used only for the default configuration.
+| `updates_disabled` | (Firefox 89, Firefox ESR 78.11) Boolean that indicates whether or not to disable automatic updates for an individual extension.
+
+**Compatibility:** Firefox 69, Firefox ESR 68.1 (As of Firefox 85, Firefox ESR 78.7, installing a theme makes it the default.)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+Software\Policies\Mozilla\Firefox\ExtensionSettings (REG_MULTI_SZ) =
+```
+{
+ "*": {
+ "blocked_install_message": "Custom error message.",
+ "install_sources": ["about:addons","https://addons.mozilla.org/"],
+ "installation_mode": "blocked",
+ "allowed_types": ["extension"]
+ },
+ "uBlock0@raymondhill.net": {
+ "installation_mode": "force_installed",
+ "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
+ },
+ "https-everywhere@eff.org": {
+ "installation_mode": "allowed"
+ }
+}
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionSettings
+```
+Value (string):
+```
+<enabled/>
+<data id="ExtensionSettings" value='
+{
+ "*": {
+ "blocked_install_message": "Custom error message.",
+ "install_sources": ["about:addons","https://addons.mozilla.org/"],
+ "installation_mode": "blocked",
+ "allowed_types": ["extension"]
+ },
+ "uBlock0@raymondhill.net": {
+ "installation_mode": "force_installed",
+ "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
+ },
+ "https-everywhere@eff.org": {
+ "installation_mode": "allowed"
+ }
+}'/>
+```
+#### macOS
+```
+<dict>
+ <key>ExtensionSettings</key>
+ <dict>
+ <key>*</key>
+ <dict>
+ <key>blocked_install_message</key>
+ <string>Custom error message.</string>
+ <key>install_sources</key>
+ <array>
+ <string>about:addons</string>
+ <string>https://addons.mozilla.org/</string>
+ </array>
+ <key>installation_mode</key>
+ <string>blocked</string>
+ <key>allowed_types</key>
+ <array>
+ <string>extension</string>
+ </array>
+ </dict>
+ <key>uBlock0@raymondhill.net</key>
+ <dict>
+ <key>installation_mode</key>
+ <string>force_installed</string>
+ <key>install_url</key>
+ <string>https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi</string>
+ </dict>
+ <key>https-everywhere@eff.org</key>
+ <dict>
+ <key>installation_mode</key>
+ <string>allowed</string>
+ </dict>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "ExtensionSettings": {
+ "*": {
+ "blocked_install_message": "Custom error message.",
+ "install_sources": ["about:addons","https://addons.mozilla.org/"],
+ "installation_mode": "blocked",
+ "allowed_types": ["extension"]
+ },
+ "uBlock0@raymondhill.net": {
+ "installation_mode": "force_installed",
+ "install_url": "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi"
+ },
+ "https-everywhere@eff.org": {
+ "installation_mode": "allowed"
+ }
+ }
+ }
+}
+```
+### ExtensionUpdate
+Control extension updates.
+
+**Compatibility:** Firefox 67, Firefox ESR 60.7\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `extensions.update.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\ExtensionUpdate = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Extensions/ExtensionUpdate
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>ExtensionUpdate</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "ExtensionUpdate": true | false
+ }
+}
+```
+### FirefoxHome
+Customize the Firefox Home page.
+
+**Compatibility:** Firefox 68, Firefox ESR 68 (SponsoredTopSites and SponsoredPocket were added in Firefox 95, Firefox ESR 91.4)
+**CCK2 Equivalent:** N/A\
+**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`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\FirefoxHome\Search = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\TopSites = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\SponsoredTopSites = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Highlights = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Pocket = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\SponsoredPocket = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Snippets = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FirefoxHome\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/CustomizeFirefoxHome
+```
+Value (string):
+```
+<enabled/>
+<data id="FirefoxHome_Search" value="true | false"/>
+<data id="FirefoxHome_TopSites" value="true | false"/>
+<data id="FirefoxHome_SponsoredTopSites" value="true | false"/>
+<data id="FirefoxHome_Highlights" value="true | false"/>
+<data id="FirefoxHome_Pocket" value="true | false"/>
+<data id="FirefoxHome_SponsoredPocket" value="true | false"/>
+<data id="FirefoxHome_Snippets" value="true | false"/>
+<data id="FirefoxHome_Locked" value="true | false"/>
+```
+#### macOS
+```
+<dict>
+ <key>FirefoxHome</key>
+ <dict>
+ <key>Search</key>
+ <true/> | <false/>
+ <key>TopSites</key>
+ <true/> | <false/>
+ <key>SponsoredTopSites</key>
+ <true/> | <false/>
+ <key>Highlights</key>
+ <true/> | <false/>
+ <key>Pocket</key>
+ <true/> | <false/>
+ <key>SponsoredPocket</key>
+ <true/> | <false/>
+ <key>Snippets</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "FirefoxHome": {
+ "Search": true | false,
+ "TopSites": true | false,
+ "SponsoredTopSites": true | false,
+ "Highlights": true | false,
+ "Pocket": true | false,
+ "SponsoredPocket": true | false,
+ "Snippets": true | false,
+ "Locked": true | false
+ }
+ }
+}
+```
+### FlashPlugin (Deprecated)
+Configure the default Flash plugin policy as well as origins for which Flash is allowed.
+
+`Allow` is a list of origins where Flash are allowed.
+
+`Block` is a list of origins where Flash is not allowed.
+
+`Default` determines whether or not Flash is allowed by default.
+
+`Locked` prevents the user from changing Flash preferences.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `permissions.plugin`\
+**Preferences Affected:** `plugin.state.flash`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\FlashPlugin\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\FlashPlugin\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\FlashPlugin\Default = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\FlashPlugin\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org2https://example.edu"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Flash/FlashPlugin_Default
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>FlashPlugin</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>http://example.org</string>
+ </array>
+ <key>Block</key>
+ <array>
+ <string>http://example.edu</string>
+ </array>
+ <key>Default</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "FlashPlugin": {
+ "Allow": ["http://example.org/"],
+ "Block": ["http://example.edu/"],
+ "Default": true | false,
+ "Locked": true | false
+ }
+ }
+}
+```
+### Handlers
+Configure default application handlers. This policy is based on the internal format of `handlers.json`.
+
+You can configure handlers based on a mime type (`mimeTypes`), a file's extension (`extensions`), or a protocol (`schemes`).
+
+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.
+
+| Name | Description |
+| --- | --- |
+| `action`| Can be either `saveToDisk`, `useHelperApp`, `useSystemDefault`.
+| `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.
+| `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.
+| `name` | The display name of the handler (might not be used).
+| `path`| The native path to the executable to be used.
+| `uriTemplate`| A url to a web based application handler. The URL must be https and contain a %s to be used for substitution.
+
+**Compatibility:** Firefox 78, Firefox ESR 78\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+Software\Policies\Mozilla\Firefox\Handlers (REG_MULTI_SZ) =
+```
+{
+ "mimeTypes": {
+ "application/msword": {
+ "action": "useSystemDefault",
+ "ask": true | false
+ }
+ },
+ "schemes": {
+ "mailto": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Gmail",
+ "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
+ }]
+ }
+ },
+ "extensions": {
+ "pdf": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Adobe Acrobat",
+ "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
+ }]
+ }
+ }
+}
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Handlers
+```
+Value (string):
+```
+<enabled/>
+<data id="Handlers" value='
+{
+ "mimeTypes": {
+ "application/msword": {
+ "action": "useSystemDefault",
+ "ask": true | false
+ }
+ },
+ "schemes": {
+ "mailto": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Gmail",
+ "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
+ }]
+ }
+ },
+ "extensions": {
+ "pdf": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Adobe Acrobat",
+ "path": "C:\\Program Files (x86)\\Adobe\\Acrobat Reader DC\\Reader\\AcroRd32.exe"
+ }]
+ }
+ }
+}
+'/>
+```
+#### macOS
+```
+<dict>
+ <key>Handlers</key>
+ <dict>
+ <key>mimeTypes</key>
+ <dict>
+ <key>application/msword</key>
+ <dict>
+ <key>action</key>
+ <string>useSystemDefault</string>
+ <key>ask</key>
+ <true/> | <false/>
+ </dict>
+ </dict>
+ <key>schemes</key>
+ <dict>
+ <key>mailto</key>
+ <dict>
+ <key>action</key>
+ <string>useHelperApp</string>
+ <key>ask</key>
+ <true/> | <false/>
+ <key>handlers</key>
+ <array>
+ <dict>
+ <key>name</key>
+ <string>Gmail</string>
+ <key>uriTemplate</key>
+ <string>https://mail.google.com/mail/?extsrc=mailto&url=%s</string>
+ </dict>
+ </array>
+ </dict>
+ </dict>
+ <key>extensions</key>
+ <dict>
+ <key>pdf</key>
+ <dict>
+ <key>action</key>
+ <string>useHelperApp</string>
+ <key>ask</key>
+ <true/> | <false/>
+ <key>handlers</key>
+ <array>
+ <dict>
+ <key>name</key>
+ <string>Adobe Acrobat</string>
+ <key>path</key>
+ <string>/System/Applications/Preview.app</string>
+ </dict>
+ </array>
+ </dict>
+ </dict>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Handlers": {
+ "mimeTypes": {
+ "application/msword": {
+ "action": "useSystemDefault",
+ "ask": false
+ }
+ },
+ "schemes": {
+ "mailto": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Gmail",
+ "uriTemplate": "https://mail.google.com/mail/?extsrc=mailto&url=%s"
+ }]
+ }
+ },
+ "extensions": {
+ "pdf": {
+ "action": "useHelperApp",
+ "ask": true | false,
+ "handlers": [{
+ "name": "Adobe Acrobat",
+ "path": "/usr/bin/acroread"
+ }]
+ }
+ }
+ }
+ }
+}
+```
+### HardwareAcceleration
+Control hardware acceleration.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `layers.acceleration.disabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\HardwareAcceleration = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/HardwareAcceleration
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>HardwareAcceleration</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "HardwareAcceleration": true | false
+ }
+}
+```
+### Homepage
+Configure the default homepage and how Firefox starts.
+
+`URL` is the default homepage.
+
+`Locked` prevents the user from changing homepage preferences.
+
+`Additional` allows for more than one homepage.
+
+`StartPage` is how Firefox starts. The choices are no homepage, the default homepage or the previous session.
+
+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.
+
+**Compatibility:** Firefox 60, Firefox ESR 60 (StartPage was added in Firefox 60, Firefox ESR 60.4, homepage-locked added in Firefox 78)\
+**CCK2 Equivalent:** `homePage`,`lockHomePage`\
+**Preferences Affected:** `browser.startup.homepage`, `browser.startup.page`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Homepage\URL = "https://example.com"
+Software\Policies\Mozilla\Firefox\Homepage\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Homepage\Additional\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Homepage\Additional\2 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Homepage\StartPage = "none" | "homepage" | "previous-session" | "homepage-locked"
+```
+#### 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>
+ <key>Homepage</key>
+ <dict>
+ <key>URL</key>
+ <string>http://example.com</string>
+ <key>Locked</key>
+ <true/> | <false/>
+ <key>Additional</key>
+ <array>
+ <string>http://example.org</string>
+ <string>http://example.edu</string>
+ </array>
+ <key>StartPage</key>
+ <string>none | homepage | previous-session | homepage-locked</string>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Homepage": {
+ "URL": "http://example.com/",
+ "Locked": true | false,
+ "Additional": ["http://example.org/",
+ "http://example.edu/"],
+ "StartPage": "none" | "homepage" | "previous-session" | "homepage-locked"
+ }
+ }
+}
+```
+### 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.
+
+`Allow` is a list of origins where extension installs are allowed.
+
+`Default` determines whether or not extension installs are allowed by default.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `permissions.install`\
+**Preferences Affected:** `xpinstall.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow\2 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Default = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org2https://example.edu"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Default
+```
+Value (string):
+```
+<enabled/>
+```
+#### macOS
+```
+<dict>
+ <key>InstallAddonsPermission</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>http://example.org</string>
+ <string>http://example.edu</string>
+ </array>
+ <key>Default</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "InstallAddonsPermission": {
+ "Allow": ["http://example.org/",
+ "http://example.edu/"],
+ "Default": true | false
+ }
+ }
+}
+```
+### LegacyProfiles
+Disable the feature enforcing a separate profile for each installation.
+
+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.
+
+If this policy set to false, Firefox will create a new profile for each unique installation of Firefox.
+
+This policy only work on Windows via GPO (not policies.json).
+
+**Compatibility:** Firefox 70, Firefox ESR 68.2 (Windows only, GPO only)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\LegacyProfiles = = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacyProfiles
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+### LegacySameSiteCookieBehaviorEnabled
+Enable default legacy SameSite cookie behavior setting.
+
+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```.
+
+**Compatibility:** Firefox 96\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.cookie.sameSite.laxByDefault`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabled = = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacySameSiteCookieBehaviorEnabled
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>LegacySameSiteCookieBehaviorEnabled</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "LegacySameSiteCookieBehaviorEnabled": true | false
+}
+```
+### LegacySameSiteCookieBehaviorEnabledForDomainList
+Revert to legacy SameSite behavior for cookies on specified sites.
+
+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```.
+
+**Compatibility:** Firefox 96\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.cookie.sameSite.laxByDefault.disabledHosts`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList\1 = "example.org"
+Software\Policies\Mozilla\Firefox\LegacySameSiteCookieBehaviorEnabledForDomainList\2 = "example.edu"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LegacySameSiteCookieBehaviorEnabledForDomainList
+```
+Value (string):
+```
+<enabled/>
+<data id="LegacySameSiteCookieBehaviorEnabledForDomainList" value="1example.org2example.edu"/>
+```
+#### macOS
+```
+<dict>
+ <key>LegacySameSiteCookieBehaviorEnabledForDomainList</key>
+ <array>
+ <string>example.org</string>
+ <string>example.edu</string>
+ </array>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "LegacySameSiteCookieBehaviorEnabledForDomainList": ["example.org",
+ "example.edu"]
+ }
+}
+```
+### LocalFileLinks
+Enable linking to local files by origin.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `capability.policy.localfilelinks.*`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\LocalFileLinks\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\LocalFileLinks\2 = "https://example.edu"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/LocalFileLinks
+```
+Value (string):
+```
+<enabled/>
+<data id="LocalFileLinks" value="1https://example.org2https://example.edu"/>
+```
+#### macOS
+```
+<dict>
+ <key>LocalFileLinks</key>
+ <array>
+ <string>http://example.org</string>
+ <string>http://example.edu</string>
+ </array>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "LocalFileLinks": ["http://example.org/",
+ "http://example.edu/"]
+ }
+}
+```
+### ManagedBookmarks
+Configures a list of bookmarks managed by an administrator that cannot be changed by the user.
+
+The bookmarks are only added as a button on the personal toolbar. They are not in the bookmarks folder.
+
+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:
+```
+{
+ "items": {
+ "id": "BookmarkType",
+ "properties": {
+ "children": {
+ "items": {
+ "$ref": "BookmarkType"
+ },
+ "type": "array"
+ },
+ "name": {
+ "type": "string"
+ },
+ "toplevel_name": {
+ "type": "string"
+ },
+ "url": {
+ "type": "string"
+ }
+ },
+ "type": "object"
+ },
+ "type": "array"
+}
+```
+**Compatibility:** Firefox 83, Firefox ESR 78.5\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+Software\Policies\Mozilla\Firefox\ManagedBookmarks (REG_MULTI_SZ) =
+```
+[
+ {
+ "toplevel_name": "My managed bookmarks folder"
+ },
+ {
+ "url": "example.com",
+ "name": "Example"
+ },
+ {
+ "name": "Mozilla links",
+ "children": [
+ {
+ "url": "https://mozilla.org",
+ "name": "Mozilla.org"
+ },
+ {
+ "url": "https://support.mozilla.org/",
+ "name": "SUMO"
+ }
+ ]
+ }
+]
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/ManagedBookmarks
+```
+Value (string):
+```
+<enabled/>
+<data id="JSON" value='
+[
+ {
+ "toplevel_name": "My managed bookmarks folder"
+ },
+ {
+ "url": "example.com",
+ "name": "Example"
+ },
+ {
+ "name": "Mozilla links",
+ "children": [
+ {
+ "url": "https://mozilla.org",
+ "name": "Mozilla.org"
+ },
+ {
+ "url": "https://support.mozilla.org/",
+ "name": "SUMO"
+ }
+ ]
+ }
+]'/>
+```
+#### macOS
+```
+<dict>
+ <key>ManagedBookmarks</key>
+ <array>
+ <dict>
+ <key>toplevel_name</key>
+ <string>My managed bookmarks folder</string>
+ <dict>
+ <key>url</key>
+ <string>example.com</string>
+ <key>name</key>
+ <string>Example</string>
+ </dict>
+ <dict>
+ <key>name</key>
+ <string>Mozilla links</string>
+ <key>children</key>
+ <array>
+ <dict>
+ <key>url</key>
+ <string>https://mozilla.org</string>
+ <key>name</key>
+ <string>Mozilla</string>
+ </dict>
+ <dict>
+ <key>url</key>
+ <string>https://support.mozilla.org/</string>
+ <key>name</key>
+ <string>SUMO</string>
+ </dict>
+ </array>
+ </dict>
+ </array>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "ManagedBookmarks": [
+ {
+ "toplevel_name": "My managed bookmarks folder"
+ },
+ {
+ "url": "example.com",
+ "name": "Example"
+ },
+ {
+ "name": "Mozilla links",
+ "children": [
+ {
+ "url": "https://mozilla.org",
+ "name": "Mozilla.org"
+ },
+ {
+ "url": "https://support.mozilla.org/",
+ "name": "SUMO"
+ }
+ ]
+ }
+ ]
+ }
+}
+```
+### ManualAppUpdateOnly
+
+Switch to manual updates only.
+
+If this policy is enabled:
+ 1. The user will never be prompted to install updates
+ 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.
+ 3. The update UI will work as expected, unlike when using DisableAppUpdate.
+
+This policy is primarily intended for advanced end users, not for enterprises.
+
+**Compatibility:** Firefox 87\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+
+#### policies.json
+```
+{
+ "policies": {
+ "ManualAppUpdateOnly": true | false
+ }
+}
+```
+### NetworkPrediction
+Enable or disable network prediction (DNS prefetching).
+
+**Compatibility:** Firefox 67, Firefox ESR 60.7\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `network.dns.disablePrefetch`, `network.dns.disablePrefetchFromHTTPS`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\NetworkPrediction = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NetworkPrediction
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>NetworkPrediction</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "NetworkPrediction": true | false
+}
+```
+### NewTabPage
+Enable or disable the New Tab page.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.newtabpage.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\NewTabPage = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NewTabPage
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>NewTabPage</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "NewTabPage": true | false
+}
+```
+### NoDefaultBookmarks
+Disable the creation of default bookmarks.
+
+This policy is only effective if the user profile has not been created yet.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `removeDefaultBookmarks`\
+**Preferences Affected:** N/A
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\NoDefaultBookmarks = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/NoDefaultBookmarks
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>NoDefaultBookmarks</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "NoDefaultBookmarks": true | false