Policies can either be specified using the GPO templates or by putting a file called policies.json in the distribution directory. The content of the JSON file should look like this:

{
  "policies": {
    ...POLICIES...
  }
}

Policies are documented below.

BlockAboutAddons

This policy removes access to about:addons.

{
  "policies": {
    "BlockAboutAddons": true
  }
}

BlockAboutConfig

This policy removes access to about:config.

{
  "policies": {
    "BlockAboutConfig": true
  }
}

BlockAboutProfiles

This policy removes access to about:profiles.

{
  "policies": {
    "BlockAboutProfiles": true
  }
}

BlockAboutSupport

This policy removes access to about:support.

{
  "policies": {
    "BlockAboutSupport": true
}

BlockSetDesktopBackground

This policy removes the "Set As Desktop Background..." menuitem when right clicking on an image.

{
  "policies": {
    "BlockAboutSupport": true
  }
}

CreateMasterPassword

This policy removes the master password functionality.

{
  "policies": {
    "CreateMasterPassword": false
  }
}

DisableAppUpdate

This policy turns off application updates.

{
  "policies": {
    "DisableAppUpdate": true
  }
}

DisableBuiltinPDFViewer

This policy disables the built in PDF viewer. PDF files are downloaded and sent externally.

{
  "policies": {
    "DisableBuiltinPDFViewer": true
  }
}

DisableDeveloperTools

This policy removes access to all developer tools.

{
  "policies": {
    "DisableDeveloperTools": true
  }
}

DisableFeedbackCommands

This policy disables the menus for reporting sites (Submit Feedback, Report Deceptive Site)

{
  "policies": {
    "DisableFeedbackCommands": true
  }
}

DisableFirefoxScreenshots

This policy removes access to Firefox Screenshots

{
  "policies": {
    "DisableFirefoxScreenshots": true
  }
}

DisableFirefoxAccounts

This policy disables Sync

{
  "policies": {
    "DisableFirefoxAccounts": true
  }
}

DisableFirefoxStudies

This policy disables Firefox studies (Shield)

{
  "policies": {
    "DisableFirefoxAccounts": true
  }
}

DisableFormHistory

This policy turns off the browser.formfill.enable preferences

{
  "policies": {
    "DisableFormHistory": true
  }
}

DisablePocket

This policy turns off Pocket

{
  "policies": {
    "DisablePocket": true
  }
}

DisablePrivateBrowsing

This policy removes access to private browsing

{
  "policies": {
    "DisablePrivateBrowsing": true
  }
}

DisableSafeMode

This policy disables safe mode on Windows only

{
  "policies": {
    "DisableSafeMode": true
  }
}

DisableSysAddonUpdate

This policy prevents system add-ons from being updated or installed.

{
  "policies": {
    "DisableSysAddonUpdate": true
  }
}

DisplayBookmarksToolbar

This policy turns on the bookmarks toolbar by default. A user can still turn it off and it will stay off.

{
  "policies": {
    "DisplayBookmarksToolbar": true
  }
}

DisplayMenuBar

This policy turns on the menubar by default. A user can still turn it off and it will stay off.

{
  "policies": {
    "DisplayMenuBar": true
  }
}

DontCheckDefaultBrowser

This policy stops Firefox from checking if it is the default browser at startup.

{
  "policies": {
    "DontCheckDefaultBrowser": true
  }
}

EnableTrackingProtection

This policy affects 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 browser and private browsing.

If Value is set to true, private browsing is enabled by default in both the browser and private browsing and you can choose set the Locked value if you want to prevent the user from changing it.

{
  "policies": {
    "EnableTrackingProtection": {
      "Value": [true, false],
      "Locked": [true, false]
    }

NoDefaultBookmarks

Don't create the default bookmarks or the Smart Bookmarks (Most Visited, Recent Tags). Note: this policy is only effective if used before the first run of the profile.

{
  "policies": {
    "NoDefaultBookmarks": true
  }
}

RememberPasswords

This policy sets the signon.rememberSignons preference. It can either be enabled or disabled.

{
  "policies": {
    "RememberPasswords": true
  }
}

Homepage

This policy sets the default homepage value. It can also be used to lock the homepage and add additional homepages.

{
  "policies": {
    "Homepage": {
      "URL": "http://example.com/",
      "Locked": true,
      "Additional": ["http://example.org/",
                     "http://example.edu/"]
    }
  }
}

Popups

This policy sets domains for which popups are allowed

{
  "policies": {
    "Popups": {
      "Allow": ["http://example.org/",
                "http://example.edu/"]
    }
  }
}

InstallAddons

This policy sets domains that can install extensions

{
  "policies": {
    "InstallAddons": {
      "Allow": ["http://example.org/",
                "http://example.edu/"]
    }
  }
}

Cookies

This policy sets domains that can set or not set cookies.

{
  "policies": {
    "Cookies": {
      "Allow": ["http://example.org/"],
      "Block": ["http://example.edu/"]
    }
  }
}

FlashPlugin

This policy sets domains that can use or not use Flash

{
  "policies": {
    "FlashPlugin": {
      "Allow": ["http://example.org/"],
      "Block": ["http://example.edu/"]
    }
  }
}

Bookmarks

This policy allows you to specify bookmarks. You can have any number of bookmarks although only ten are specified in the ADMX file. Placement can be specified as either toolbar or menu. If a folder is specified, it is automatically created and bookmarks with the same folder name are grouped together.

{
  "policies": {
    "Bookmarks": [
    {"Title": "Example",
     "URL": "http://example.org",
     "Favicon": "http://example.com/favicon.ico",
     "Placement": ["toolbar", "menu"],
     "Folder": "FolderName"
     }
    ]
  }
}