+Control whether or not Firefox offers to save passwords.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `dontRememberPasswords`\
+**Preferences Affected:** `signon.rememberSignons`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\OfferToSaveLogins = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLogins
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>OfferToSaveLogins</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "OfferToSaveLogins": true | false
+ }
+}
+```
+### OfferToSaveLoginsDefault
+Sets the default value of signon.rememberSignons without locking it.
+
+**Compatibility:** Firefox 70, Firefox ESR 60.2\
+**CCK2 Equivalent:** `dontRememberPasswords`\
+**Preferences Affected:** `signon.rememberSignons`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\OfferToSaveLoginsDefault = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OfferToSaveLoginsDefault
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>OfferToSaveLoginsDefault</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "OfferToSaveLoginsDefault": true | false
+ }
+}
+```
+### OverrideFirstRunPage
+Override the first run page. If the value is an empty string (""), the first run page is not displayed.
+
+Starting with Firefox 83, Firefox ESR 78.5, you can also specify multiple URLS separated by a vertical bar (|).
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `welcomePage`,`noWelcomePage`\
+**Preferences Affected:** `startup.homepage_welcome_url`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\OverrideFirstRunPage = "http://example.org"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverrideFirstRunPage
+```
+Value (string):
+```
+<enabled/>
+<data id="OverridePage" value="https://example.com"/>
+```
+#### macOS
+```
+<dict>
+ <key>OverrideFirstRunPage</key>
+ <string>http://example.org</string>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "OverrideFirstRunPage": "http://example.org"
+}
+```
+### OverridePostUpdatePage
+Override the upgrade page. If the value is an empty string (""), no extra pages are displayed when Firefox is upgraded.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `upgradePage`,`noUpgradePage`\
+**Preferences Affected:** `startup.homepage_override_url`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\OverridePostUpdatePage = "http://example.org"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/OverridePostUpdatePage
+```
+Value (string):
+```
+<enabled/>
+<data id="OverridePage" value="https://example.com"/>
+```
+#### macOS
+```
+<dict>
+ <key>OverridePostUpdatePage</key>
+ <string>http://example.org</string>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "OverridePostUpdatePage": "http://example.org"
+}
+```
+### PasswordManagerEnabled
+Remove access to the password manager via preferences and blocks about:logins on Firefox 70.
+
+**Compatibility:** Firefox 70, Firefox ESR 60.2\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `pref.privacy.disable_button.view_passwords`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PasswordManagerEnabled = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PasswordManagerEnabled
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PasswordManagerEnabled</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PasswordManagerEnabled": true | false
+ }
+}
+```
+### PDFjs
+Disable or configure PDF.js, the built-in PDF viewer.
+
+If `Enabled` is set to false, the built-in PDF viewer is disabled.
+
+If `EnablePermissions` is set to true, the built-in PDF viewer will honor document permissions like preventing the copying of text.
+
+Note: DisableBuiltinPDFViewer has not been deprecated. You can either continue to use it, or switch to using PDFjs->Enabled to disable the built-in PDF viewer. This new permission was added because we needed a place for PDFjs->EnabledPermissions.
+
+**Compatibility:** Firefox 77, Firefox ESR 68.9\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `pdfjs.diabled`,`pdfjs.enablePermissions`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PDFjs\Enabled = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\PDFjs\EnablePermissions = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_Enabled
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PDFjs/PDFjs_EnablePermissions
+```
+Value (string):
+```
+<enabled/>or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PDFjs</key>
+ <dict>
+ <key>Enabled</key>
+ <true/> | <false/>
+ <key>EnablePermissions</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PSFjs": {
+ "Enabled": true | false,
+ "EnablePermissions": true | false
+ }
+}
+```
+### Permissions
+Set permissions associated with camera, microphone, location, notifications, autoplay, and virtual reality. Because these are origins, not domains, entries with unique ports must be specified separately. This explicitly means that it is not possible to add wildcards. See examples below.
+
+`Allow` is a list of origins where the feature is allowed.
+
+`Block` is a list of origins where the feature is not allowed.
+
+`BlockNewRequests` determines whether or not new requests can be made for the feature.
+
+`Locked` prevents the user from changing preferences for the feature.
+
+`Default` specifies the default value for Autoplay. block-audio-video is not supported on Firefox ESR 68.
+
+**Compatibility:** Firefox 62, Firefox ESR 60.2 (Autoplay added in Firefox 74, Firefox ESR 68.6, Autoplay Default/Locked added in Firefox 76, Firefox ESR 68.8, VirtualReality added in Firefox 80, Firefox ESR 78.2)\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `permissions.default.camera`,`permissions.default.microphone`,`permissions.default.geo`,`permissions.default.desktop-notification`,`media.autoplay.default`.`permissions.default.xr`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Allow\2 = "https://example.org:1234"
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Camera\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Camera\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Microphone\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Location\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Location\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Location\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Location\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Notifications\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Default = "allow-audio-video" | "block-audio" | "block-audio-video"
+Software\Policies\Mozilla\Firefox\Permissions\Autoplay\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Block\1 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\BlockNewRequests = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Permissions\VirtualReality\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_BlockNewRequests
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Location/Location_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_BlockNewRequests
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/Notifications_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Block
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.edu"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Default
+```
+Value (string):
+```
+<enabled/>
+<data id="Autoplay_Default" value="allow-audio-video | block-audio | block-audio-video"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Autoplay/Autoplay_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Allow
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.org"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Block
+```
+Value (string):
+```
+<enabled/>
+<data id="Permissions" value="1https://example.edu"/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_BlockNewRequests
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Permissions~Notifications/VirtualReality_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>Permissions</key>
+ <dict>
+ <key>Camera</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>https://example.org</string>
+ <string>https://example.org:1234</string>
+ </array>
+ <key>Block</key>
+ <array>
+ <string>https://example.edu</string>
+ </array>
+ <key>BlockNewRequests</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+ <key>Microphone</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>https://example.org</string>
+ </array>
+ <key>Block</key>
+ <array>
+ <string>https://example.edu</string>
+ </array>
+ <key>BlockNewRequests</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+ <key>Location</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>https://example.org</string>
+ </array>
+ <key>Block</key>
+ <array>
+ <string>https://example.edu</string>
+ </array>
+ <key>BlockNewRequests</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+ <key>Notifications</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>https://example.org</string>
+ </array>
+ <key>Block</key>
+ <array>
+ <string>https://example.edu</string>
+ </array>
+ <key>BlockNewRequests</key>
+ <true/>
+ <key>Locked</key>
+ <true/>
+ </dict>
+ <key>Autoplay</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>https://example.org</string>
+ </array>
+ <key>Block</key>
+ <array>
+ <string>https://example.edu</string>
+ </array>
+ <key>Default</key>
+ <string>allow-audio-video | block-audio | block-audio-video</string>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Permissions": {
+ "Camera": {
+ "Allow": ["https://example.org","https://example.org:1234"],
+ "Block": ["https://example.edu"],
+ "BlockNewRequests": true | false,
+ "Locked": true | false
+ },
+ "Microphone": {
+ "Allow": ["https://example.org"],
+ "Block": ["https://example.edu"],
+ "BlockNewRequests": true | false,
+ "Locked": true | false
+ },
+ "Location": {
+ "Allow": ["https://example.org"],
+ "Block": ["https://example.edu"],
+ "BlockNewRequests": true | false,
+ "Locked": true | false
+ },
+ "Notifications": {
+ "Allow": ["https://example.org"],
+ "Block": ["https://example.edu"],
+ "BlockNewRequests": true | false,
+ "Locked": true | false
+ },
+ "Autoplay": {
+ "Allow": ["https://example.org"],
+ "Block": ["https://example.edu"],
+ "Default": "allow-audio-video" | "block-audio" | "block-audio-video",
+ "Locked": true | false
+ }
+ }
+ }
+}
+```
+### PictureInPicture
+
+Enable or disable Picture-in-Picture as well as lock it.
+
+**Compatibility:** Firefox 78, Firefox ESR 78\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `media.videocontrols.picture-in-picture.video-toggle.enabled`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PictureInPicture\Enabled = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\PictureInPicture\Locked = 0x1 | 0x0
+
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Enabled
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~PictureInPicture/PictureInPicture_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PictureInPicture</key>
+ <dict>
+ <key>Enabled</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PictureInPicture": {
+ "Enabled": true | false,
+ "Locked": true, false
+ }
+ }
+}
+```
+### PopupBlocking
+Configure the default pop-up window policy as well as origins for which pop-up windows are allowed.
+
+`Allow` is a list of origins where popup-windows are allowed.
+
+`Default` determines whether or not pop-up windows are allowed by default.
+
+`Locked` prevents the user from changing pop-up preferences.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `permissions.popup`\
+**Preferences Affected:** `dom.disable_open_during_load`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\1 = "https://example.org"
+Software\Policies\Mozilla\Firefox\PopupBlocking\Allow\2 = "https://example.edu"
+Software\Policies\Mozilla\Firefox\PopupBlocking\Default = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\PopupBlocking\Locked = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_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~Popups/PopupBlocking_Default
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Popups/PopupBlocking_Locked
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PopupBlocking</key>
+ <dict>
+ <key>Allow</key>
+ <array>
+ <string>http://example.org</string>
+ <string>http://example.edu</string>
+ </array>
+ <key>Default</key>
+ <true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PopupBlocking": {
+ "Allow": ["http://example.org/",
+ "http://example.edu/"],
+ "Default": true | false,
+ "Locked": true | false
+ }
+ }
+}
+```
+### Preferences
+Set and lock preferences.
+
+**NOTE** On Windows, in order to use this policy, you must clear all settings in the old **Preferences (Deprecated)** section.
+
+Previously you could only set and lock a subset of preferences. Starting with Firefox 81 and Firefox ESR 78.3 you can set many more preferences. You can also set default preferences, user preferences and you can clear preferences.
+
+Preferences that start with the following prefixes are supported:
+```
+accessibility.
+browser.
+datareporting.policy.
+dom.
+extensions.
+general.autoScroll (Firefox 83, Firefox ESR 78.5)
+general.smoothScroll (Firefox 83, Firefox ESR 78.5)
+geo.
+intl.
+layout.
+media.
+network.
+pdfjs. (Firefox 84, Firefox ESR 78.6)
+places.
+print.
+signon. (Firefox 83, Firefox ESR 78.5)
+spellchecker. (Firefox 84, Firefox ESR 78.6)
+ui.
+widget.
+```
+as well as the following security preferences:
+| Preference | Type | Default
+| --- | --- | ---
+| security.default_personal_cert | string | Ask Every Time
+| If set to Select Automatically, Firefox automatically chooses the default personal certificate.
+| security.insecure_connection_text.enabled | bool | false
+| If set to true, adds the words "Not Secure" for insecure sites.
+| security.insecure_connection_text.pbmode.enabled | bool | false
+| If set to true, adds the words "Not Secure" for insecure sites in private browsing.
+| security.insecure_field_warning.contextual.enabled | bool | true
+| If set to false, remove the warning for inscure login fields.
+| security.mixed_content.block_active_content | boolean | true
+| If false, mixed active content (HTTP and HTTPS) is not blocked.
+| security.osclientcerts.autoload | boolean | false
+| If true, client certificates are loaded from the operating system certificate store.
+| security.ssl.errorReporting.enabled | boolean | true
+| If false, SSL errors cannot be sent to Mozilla.
+| security.tls.hello_downgrade_check | boolean | true
+| If false, the TLS 1.3 downgrade check is disabled.
+| security.warn_submit_secure_to_insecure | boolean | true
+| If false, no warning is shown when submitting s form from https to http.
+
+
+Using the preference as the key, set the `Value` to the corresponding preference value.
+
+`Status` can be "default", "locked", "user" or "clear"
+
+Default preferences can be modified by the user.
+
+If a value is locked, it is also set as the default.
+
+User preferences persist across invocations of Firefox. It is the equivalent of a user setting the preference. They are most useful when a preference is needed very early in startup so it can't be set as default by policy.
+
+User preferences persist even if the policy is removed, so if you need to remove them, you should use the clear policy.
+
+See the examples below for more detail.
+
+IMPORTANT: Make sure you're only setting a particular preference using this mechanism and not some other way.
+
+Status
+**Compatibility:** Firefox 81, Firefox ESR 78.3\
+**CCK2 Equivalent:** `preferences`\
+**Preferences Affected:** Many
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Preferences (REG_MULTI_SZ) =
+{
+ "accessibility.force_disabled": {
+ "Value": 1,
+ "Status": "default"
+ },
+ "browser.cache.disk.parent_directory": {
+ "Value": "SOME_NATIVE_PATH",
+ "Status": "user"
+ },
+ "browser.tabs.warnOnClose": {
+ "Value": false,
+ "Status": "locked"
+ }
+}
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Preferences
+```
+Value (string):
+```
+<enabled/>
+<data id="Preferences" value='
+{
+ "accessibility.force_disabled": {
+ "Value": 1,
+ "Status": "default"
+ },
+ "browser.cache.disk.parent_directory": {
+ "Value": "SOME_NATIVE_PATH",
+ "Status": "user"
+ },
+ "browser.tabs.warnOnClose": {
+ "Value": false,
+ "Status": "locked"
+ }
+}'/>
+```
+#### macOS
+```
+<dict>
+ <key>Preferences</key>
+ <dict>
+ <key>accessibility.force_disabled</key>
+ <dict>
+ <key>Value</key>
+ <integer>1</integer>
+ <key>Status</key>
+ <string>default</string>
+ </dict>
+ <key>browser.cache.disk.parent_directory</key>
+ <dict>
+ <key>Value</key>
+ <string>SOME_NATIVE_PATH</string>
+ <key>Status</key>
+ <string>user</string>
+ </dict>
+ <key>browser.tabs.warnOnClose</key>
+ <dict>
+ <key>Value</key>
+ <false/>
+ <key>Status</key>
+ <string>locked</string>
+ </dict>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Preferences": {
+ "accessibility.force_disabled": {
+ "Value": 1,
+ "Status": "default"
+ },
+ "browser.cache.disk.parent_directory": {
+ "Value": "SOME_NATIVE_PATH",
+ "Status": "user"
+ },
+ "browser.tabs.warnOnClose": {
+ "Value": false,
+ "Status": "locked"
+ }
+ }
+ }
+}
+```
+### Preferences (Deprecated)
+Set and lock certain preferences.
+
+**Compatibility:** See below\
+**CCK2 Equivalent:** `preferences`\
+**Preferences Affected:** See below
+
+| Preference | Type | Compatibility | Default
+| --- | --- | --- | ---
+| accessibility.force_disabled | integer | Firefox 70, Firefox ESR 68.2 | 0
+| If set to 1, platform accessibility is disabled.
+| 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.
+| browser.bookmarks.file | string | Firefox 70, Firefox ESR 68.2 | N/A
+| If set, the name of the file where bookmarks are exported and imported.
+| browser.bookmarks.restore_default_bookmarks | boolean | Firefox 70, Firefox ESR 68.2 | N/A
+| If true, bookmarks are restored to their defaults.
+| browser.cache.disk.enable | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, don't store cache on the hard drive.
+| ~browser.cache.disk.parent_directory~ | string | Firefox 68, Firefox ESR 68 | Profile temporary directory
+| ~If set, changes the location of the disk cache.~ This policy doesn't work. It's being worked on.
+| browser.fixup.dns_first_for_single_words | boolean | Firefox 68, Firefox ESR 68 | false
+| If true, single words are sent to DNS, not directly to search.
+| browser.newtabpage.activity-stream.default.sites | string | Firefox 72, ESR 68.4 | Locale dependent
+| If set, a list of URLs to use as the default top sites on the new tab page. Due to Firefox limitations, search sites can't be added. In addition, sites with the same name but different TLDs (example.org/example.com) will not display properly.
+| browser.places.importBookmarksHTML | boolean | Firefox 70, Firefox ESR 68.2
+| If true, bookmarks are always imported on startup.
+| browser.safebrowsing.phishing.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, phishing protection is not enabled (Not recommended)
+| browser.safebrowsing.malware.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, malware protection is not enabled (Not recommended)
+| browser.search.update | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, updates for search engines are not checked.
+| browser.slowStartup.notificationDisabled | boolean | Firefox 70, Firefox ESR 68.2 | false
+| If true, a notification isn't shown if startup is slow.
+| browser.tabs.warnOnClose | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, there is no warning when the browser is closed.
+| browser.taskbar.previews.enable | boolean | Firefox 70, Firefox ESR 68.2 (Windows only) | false
+| If true, tab previews are shown in the Windows taskbar.
+| browser.urlbar.suggest.bookmark | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, bookmarks aren't suggested when typing in the URL bar.
+| browser.urlbar.suggest.history | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, history isn't suggested when typing in the URL bar.
+| browser.urlbar.suggest.openpage | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, open tabs aren't suggested when typing in the URL bar.
+| datareporting.policy.dataSubmissionPolicyBypassNotification | boolean | Firefox 68, Firefox ESR 68 | false
+| If true, don't show the privacy policy tab on first run.
+| dom.allow_scripts_to_close_windows | boolean | Firefox 70, Firefox ESR 68.2 | false
+| If false, web page can close windows.
+| dom.disable_window_flip | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, web pages can focus and activate windows.
+| dom.disable_window_move_resize | boolean | Firefox 68, Firefox ESR 68 | false
+| If true, web pages can't move or resize windows.
+| dom.event.contextmenu.enabled | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, web pages can't override context menus.
+| dom.keyboardevent.keypress.hack.dispatch_non_printable_keys.addl | string | Firefox 68, Firefox ESR 68 | N/A
+| See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
+| dom.keyboardevent.keypress.hack.use_legacy_keycode_and_charcode.addl | string | Firefox 68, Firefox ESR 68 | N/A
+| See https://support.mozilla.org/en-US/kb/dom-events-changes-introduced-firefox-66
+| dom.xmldocument.load.enabled | boolean | Firefox ESR 68.5 | true.
+| If false, XMLDocument.load is not available.
+| dom.xmldocument.async.enabled | boolean | Firefox ESR 68.5 | true
+| If false, XMLDocument.async is not available.
+| extensions.blocklist.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, the extensions blocklist is not used (Not recommended)
+| extensions.getAddons.showPane | boolean | Firefox 68, Firefox ESR 68 | N/A
+| If false, the Recommendations tab is not displayed in the Add-ons Manager.
+| extensions.htmlaboutaddons.recommendations.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
+| If false, recommendations are not shown on the Extensions tab in the Add-ons Manager.
+| geo.enabled | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, the geolocation API is disabled. | Language dependent
+| intl.accept_languages | string | Firefox 70, Firefox ESR 68.2
+| If set, preferred language for web pages.
+| media.eme.enabled (Deprecated - Switch to EncryptedMediaExtensions policy) | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, Encrypted Media Extensions are not enabled.
+| media.gmp-gmpopenh264.enabled | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, the OpenH264 plugin is not downloaded.
+| media.gmp-widevinecdm.enabled | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, the Widevine plugin is not downloaded.
+| media.peerconnection.enabled | boolean | Firefox 72, Firefox ESR 68.4 | true
+| If false, WebRTC is disabled
+| media.peerconnection.ice.obfuscate_host_addresses.whitelist (Deprecated) | string | Firefox 72, Firefox ESR 68.4 | N/A
+| If set, a list of domains for which mDNS hostname obfuscation is
+disabled
+| media.peerconnection.ice.obfuscate_host_addresses.blocklist | string | Firefox 79, Firefox ESR 78.1 | N/A
+| If set, a list of domains for which mDNS hostname obfuscation is
+disabled
+| network.dns.disableIPv6 | boolean | Firefox 68, Firefox ESR 68 | false
+| If true, IPv6 DNS lokoups are disabled.
+| network.IDN_show_punycode | boolean | Firefox 68, Firefox ESR 68 | false
+| If true, display the punycode version of internationalized domain names.
+| places.history.enabled | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, history is not enabled.
+| print.save_print_settings | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, print settings are not saved between jobs.
+| security.default_personal_cert | string | Firefox 68, Firefox ESR 68 | Ask Every Time
+| If set to Select Automatically, Firefox automatically chooses the default personal certificate.
+| security.mixed_content.block_active_content | boolean | Firefox 70, Firefox ESR 68.2 | true
+| If false, mixed active content (HTTP and HTTPS) is not blocked.
+| security.osclientcerts.autoload | boolean | Firefox 72 (Windows), Firefox 75 (macOS) | false
+| If true, client certificates are loaded from the operating system certificate store.
+| security.ssl.errorReporting.enabled | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, SSL errors cannot be sent to Mozilla.
+| security.tls.hello_downgrade_check | boolean | Firefox 72, Firefox ESR 68.4 | true
+| If false, the TLS 1.3 downgrade check is disabled.
+| ui.key.menuAccessKeyFocuses | boolean | Firefox 68, Firefox ESR 68 | true
+| If false, the Alt key doesn't show the menubar on Windows.
+| widget.content.gtk-theme-override | string | Firefox 72, Firefox ESR 68.4 (Linux only) | N/A
+| If set, overrides the GTK theme for widgets.
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Preferences\boolean_preference_name = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Preferences\string_preference_name = "string_value"
+```
+#### Windows (Intune)
+OMA-URI: (periods are replaced by underscores)
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/boolean_preference_name
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+OMA-URI: (periods are replaced by underscores)
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Preferences/string_preference_name
+```
+Value (string):
+```
+<enabled/>
+<data id="Preferences_String" value="string_value"/>
+```
+#### macOS
+```
+<dict>
+ <key>Preferences</key>
+ <dict>
+ <key>boolean_preference_name</key>
+ <true/> | <false/>
+ <key>string_preference_name</key>
+ <string>string_value</string>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Preferences": {
+ "boolean_preference_name": true | false,
+ "string_preference_name": "string_value"
+ }
+ }
+}
+```
+### PromptForDownloadLocation
+Ask where to save each file before downloading.
+
+**Compatibility:** Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** `browser.download.useDownloadDir`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\PromptForDownloadLocation = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/PromptForDownloadLocation
+```
+Value (string):
+```
+<enabled/> or <disabled/>
+```
+#### macOS
+```
+<dict>
+ <key>PromptForDownloadLocation</key>
+ <true/> | <false/>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "PromptForDownloadLocation": true | false
+ }
+}
+```
+### Proxy
+Configure proxy settings. These settings correspond to the connection settings in Firefox preferences.
+To specify ports, append them to the hostnames with a colon (:).
+
+`Mode` is the proxy method being used.
+
+`Locked` is whether or not proxy settings can be changed.
+
+`HTTPProxy` is the HTTP proxy server.
+
+`UseHTTPProxyForAllProtocols` is whether or not the HTTP proxy should be used for all other proxies.
+
+`SSLProxy` is the SSL proxy server.
+
+`FTPProxy` is the FTP proxy server.
+
+`SOCKSProxy` is the SOCKS proxy server
+
+`SOCKSVersion` is the SOCKS version (4 or 5)
+
+`Passthrough` is list of hostnames or IP addresses that will not be proxied. Use `<local>` to bypass proxying for all hostnames which do not contain periods.
+
+`AutoConfigURL` is a URL for proxy configuration (only used if Mode is autoConfig).
+
+`AutoLogin` means do not prompt for authentication if password is saved.
+
+`UseProxyForDNS` to use proxy DNS when using SOCKS v5.
+
+**Compatibility:** Firefox 60, Firefox ESR 60\
+**CCK2 Equivalent:** `networkProxy*`\
+**Preferences Affected:** `network.proxy.type`,`network.proxy.autoconfig_url`,`network.proxy.socks_remote_dns`,`signon.autologin.proxy`,`network.proxy.socks_version`,`network.proxy.no_proxies_on`,`network.proxy.share_proxy_settings`,`network.proxy.http`,`network.proxy.http_port`,`network.proxy.ftp`,`network.proxy.ftp_port`,`network.proxy.ssl`,`network.proxy.ssl_port`,`network.proxy.socks`,`network.proxy.socks_port`
+
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\Proxy\Mode = "none" | "system" | "manual" | "autoDetect" | "autoConfig"
+Software\Policies\Mozilla\Firefox\Proxy\Locked = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\=Proxy\HTTPProxy = https://httpproxy.example.com
+Software\Policies\Mozilla\Firefox\Proxy\UseHTTPProxyForAllProtocols = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Proxy\SSLProxy = https://sslproxy.example.com
+Software\Policies\Mozilla\Firefox\Proxy\FTPProxy = https://ftpproxy.example.com
+Software\Policies\Mozilla\Firefox\Proxy\SOCKSProxy = https://socksproxy.example.com
+Software\Policies\Mozilla\Firefox\Proxy\SOCKSVersion = 0x4 | 0x5
+Software\Policies\Mozilla\Firefox\Proxy\Passthrough = <local>
+Software\Policies\Mozilla\Firefox\Proxy\AutoConfigURL = URL_TO_AUTOCONFIG
+Software\Policies\Mozilla\Firefox\Proxy\AutoLogin = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\Proxy\UseProxyForDNS = 0x1 | 0x0
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/Proxy
+```
+Value (string):
+```
+<enabled/>
+<data id="ProxyLocked" value="true | false"/>
+<data id="ConnectionType" value="none | system | manual | autoDetect | autoConfig"/>
+<data id="HTTPProxy" value="https://httpproxy.example.com"/>
+<data id="UseHTTPProxyForAllProtocols" value="true | false"/>
+<data id="SSLProxy" value="https://sslproxy.example.com"/>
+<data id="FTPProxy" value="https://ftpproxy.example.com"/>
+<data id="SOCKSProxy" value="https://socksproxy.example.com"/>
+<data id="SOCKSVersion" value="4 | 5"/>
+<data id="AutoConfigURL" value="URL_TO_AUTOCONFIG"/>
+<data id="Passthrough" value="<local>"/>
+<data id="AutoLogin" value="true | false"/>
+<data id="UseProxyForDNS" value="true | false"/>
+```
+#### macOS
+```
+<dict>
+ <key>Proxy</key>
+ <dict>
+ <key>Mode</key>
+ <string>none | system | manual | autoDetect | autoConfig</string>
+ <key>Locked</key>
+ <true> | </false>
+ <key>HTTPProxy</key>
+ <string>https://httpproxy.example.com</string>
+ <key>UseHTTPProxyForAllProtocols</key>
+ <true> | </false>
+ <key>SSLProxy</key>
+ <string>https://sslproxy.example.com</string>
+ <key>FTPProxy</key>
+ <string>https://ftpproxy.example.com</string>
+ <key>SOCKSProxy</key>
+ <string>https://socksproxy.example.com</string>
+ <key>SOCKSVersion</key>
+ <string>4 | 5</string>
+ <key>Passthrough</key>
+ <string><local>></string>
+ <key>AutoConfigURL</key>
+ <string>URL_TO_AUTOCONFIG</string>
+ <key>AutoLogin</key>
+ <true> | </false>
+ <key>UseProxyForDNS</key>
+ <true> | </false>
+ </dict>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "Proxy": {
+ "Mode": "none" | "system" | "manual" | "autoDetect" | "autoConfig",
+ "Locked": true | false,
+ "HTTPProxy": "hostname",
+ "UseHTTPProxyForAllProtocols": true | false,
+ "SSLProxy": "hostname",
+ "FTPProxy": "hostname",
+ "SOCKSProxy": "hostname",
+ "SOCKSVersion": 4 | 5
+ "Passthrough": "<local>",
+ "AutoConfigURL": "URL_TO_AUTOCONFIG",
+ "AutoLogin": true | false,
+ "UseProxyForDNS": true | false
+ }
+ }
+}
+```
+### RequestedLocales
+Set the the list of requested locales for the application in order of preference. It will cause the corresponding language pack to become active.
+
+Note: For Firefox 68, this can now be a string so that you can specify an empty value.
+
+**Compatibility:** Firefox 64, Firefox ESR 60.4, Updated in Firefox 68, Firefox ESR 68\
+**CCK2 Equivalent:** N/A\
+**Preferences Affected:** N/A
+#### Windows (GPO)
+```
+Software\Policies\Mozilla\Firefox\RequestedLocales\1 = "de"
+Software\Policies\Mozilla\Firefox\RequestedLocales\2 = "en-US"
+
+or
+
+Software\Policies\Mozilla\Firefox\RequestedLocales = "de,en-US"
+```
+#### Windows (Intune)
+OMA-URI:
+```
+./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox/RequestedLocalesString
+```
+Value (string):
+```
+<enabled/>
+<data id="Preferences_String" value="de,en-US"/>
+```
+#### macOS
+```
+<dict>
+ <key>RequestedLocales</key>
+ <array>
+ <string>de</string>
+ <string>en-US</string>
+ </array>
+</dict>
+
+or
+
+<dict>
+ <key>RequestedLocales</key>
+ <string>de,en-US</string>
+</dict>
+
+```
+#### policies.json