| **[`DisableMasterPasswordCreation`](#disablemasterpasswordcreation)** | Remove the master password functionality.
| **[`DisableAppUpdate`](#disableappupdate)** | Turn off application updates.
| **[`DisableBuiltinPDFViewer`](#disablebuiltinpdfviewer)** | Disable the built in PDF viewer.
+| **[`DisableDefaultBrowserAgent`](#disabledefaultbrowseragent)** | Prevent the default browser agent from taking any actions (Windows only).
| **[`DisableDeveloperTools`](#disabledevelopertools)** | Remove access to all developer tools.
| **[`DisableFeedbackCommands`](#disablefeedbackcommands)** | Disable the menus for reporting sites.
| **[`DisableFirefoxScreenshots`](#disablefirefoxscreenshots)** | Remove access to Firefox Screenshots.
| **[`DisableSystemAddonUpdate`](#disablesystemaddonupdate)** | Prevent system add-ons from being installed or update.
| **[`DisableTelemetry`](#disabletelemetry)** | DisableTelemetry
| **[`DisplayBookmarksToolbar`](#displaybookmarkstoolbar)** | Set the initial state of the bookmarks toolbar.
-| **[`DisplayMenuBar`](#displaymenubar)** | Set the initial state of the menubar.
+| **[`DisplayMenuBar (Deprecated)`](#displaymenubar-deprecated)** | Set the initial state of the menubar.
+| **[`DisplayMenuBar`](#displaymenubar)** | Set the state of the menubar.
| **[`DNSOverHTTPS`](#dnsoverhttps)** | Configure DNS over HTTPS.
| **[`DontCheckDefaultBrowser`](#dontcheckdefaultbrowser)** | Don't check if Firefox is the default browser at startup.
| **[`DefaultDownloadDirectory`](#defaultdownloaddirectory)** | Set the default download directory.
}
}
```
+### DisableDefaultBrowserAgent
+Prevent the default browser agent from taking any actions. Only applicable to Windows; other platforms don’t have the agent.
+
+**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
+```
+
+#### policies.json
+```
+{
+ "policies": {
+ "DisableDefaultBrowserAgent": true | false
+ }
+}
+```
### DisableDeveloperTools
Remove access to all developer tools.
Disable Firefox studies (Shield).
**Compatibility:** Firefox 60, Firefox ESR 60\
-**CCK2 Equivalent:** `disableForget`\
+**CCK2 Equivalent:** N/A\
**Preferences Affected:** N/A
#### Windows (GPO)
}
}
```
-### DisplayMenuBar
+### 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)\
}
}
```
+### 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"
+```
+#### macOS
+```
+<dict>
+ <key>DisplayMenuBar</key>
+ <string>always | never | default-on | default-off</string>
+</dict>
+```
+#### policies.json
+```
+{
+ "policies": {
+ "DisplayMenuBar": "always", "never", "default-on", "default-off"
+ }
+}
+```
### DNSOverHTTPS
Configure DNS over HTTPS.
If `Fingerprinting` is set to true, fingerprinting scripts on websites are blocked.
-**Compatibility:** Firefox 60, Firefox ESR 60 (Cryptomining and Fingerprinting added in 70/68.2)\
-**CCK2 Equivalent:** `dontCheckDefaultBrowser`\
+`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\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"
```
#### macOS
```
<dict>
<key>Value</key>
<true/> | <false/>
- <key><Locked/key>
+ <key><Locked</key>
<true/> | <false/>
- <key><Cryptomining/key>
+ <key><Cryptomining</key>
<true/> | <false/>
- <key><Fingerprinting/key>
+ <key><Fingerprinting</key>
<true/> | <false/>
+ <key>Exceptions</key>
+ <array>
+ <string>https://example.com</string>
+ </array>
</dict>
</dict>
```
"Value": [true, false],
"Locked": [true, false],
"Cryptomining": [true, false],
- "Fingerprinting": [true, false]
+ "Fingerprinting": [true, false],
+ "Exceptions": ["https://example.com"]
}
}
```
**Compatibility:** Firefox 70, Firefox ESR 60.2\
**CCK2 Equivalent:** N/A\
-**Preferences Affected:** `prefs.privacy.disable_button.view_passwords`
+**Preferences Affected:** `pref.privacy.disable_button.view_passwords`
#### Windows (GPO)
```
}
```
### Permissions
-Set permissions associated with camera, microphone, location, and notifications. Because these are origins, not domains, entries with unique ports must be specified separately. See examples below.
+Set permissions associated with camera, microphone, location, notifications, and autoplay. Because these are origins, not domains, entries with unique ports must be specified separately. See examples below.
`Allow` is a list of origins where the feature is allowed.
`Locked` prevents the user from changing preferences for the feature.
-**Compatibility:** Firefox 62, Firefox ESR 60.2\
+**Compatibility:** Firefox 62, Firefox ESR 60.2 (Autoplay added in Firefox 74, Firefox ESR 68.6\
**CCK2 Equivalent:** N/A\
**Preferences Affected:** `permissions.default.camera`,`permissions.default.microphone`,`permissions.default.geo`,`permissions.default.desktop-notification`
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"
```
#### macOS
```
<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>
+ </dict>
</dict>
</dict>
```
"Block": ["https://example.edu"],
"BlockNewRequests": true | false,
"Locked": true | false
+ },
+ "Autoplay": {
+ "Allow": ["https://example.org"],
+ "Block": ["https://example.edu"]
}
}
}
| 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
Ask where to save each file before downloading.
**Compatibility:** Firefox 68, Firefox ESR 68\
-**CCK2 Equivalent:** N/A
+**CCK2 Equivalent:** N/A\
**Preferences Affected:** `browser.download.useDownloadDir`
#### Windows (GPO)
<key>Proxy</key>
<dict>
<key>Mode</key>
- <string>none | system | manual | autoDetect| autoConfig</string>
+ <string>none | system | manual | autoDetect | autoConfig</string>
<key>Locked</key>
<true> | </false>
<key>HTTPProxy</key>
### SanitizeOnShutdown (Selective)
Clear data on shutdown. Choose from Cache, Cookies, Download History, Form & Search History, Browsing History, Active Logins, Site Preferences and Offline Website Data.
-**Compatibility:** Firefox 68, Firefox ESR 68\
+Previously, these values were always locked. Starting with Firefox 74 and Firefox ESR 68.6, you can use the `Locked` option to either keep the values unlocked (set it to false), or lock only the values you set (set it to true). If you want the old behavior of locking everything, do not set `Locked` at all.
+
+**Compatibility:** Firefox 68, Firefox ESR 68 (Locked added in 74/68.6)\
**CCK2 Equivalent:** N/A\
**Preferences Affected:** `privacy.sanitize.sanitizeOnShutdown`,`privacy.clearOnShutdown.cache`,`privacy.clearOnShutdown.cookies`,`privacy.clearOnShutdown.downloads`,`privacy.clearOnShutdown.formdata`,`privacy.clearOnShutdown.history`,`privacy.clearOnShutdown.sessions`,`privacy.clearOnShutdown.siteSettings`,`privacy.clearOnShutdown.offlineApps`
#### Windows (GPO)
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Sessions = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\SiteSettings = 0x1 | 0x0
Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\OfflineApps = 0x1 | 0x0
+Software\Policies\Mozilla\Firefox\SanitizeOnShutdown\Locked = 0x1 | 0x0
```
#### macOS
```
<true/> | <false/>
<key>OfflineApps</key>
<true/> | <false/>
+ <key>Locked</key>
+ <true/> | <false/>
</dict>
</dict>
```
"History": true | false,
"Sessions": true | false,
"SiteSettings": true | false,
- "OfflineApps": true | false
+ "OfflineApps": true | false,
+ "Locked": true | false
}
}
}