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.

Compatibility

Firefox	Firefox ESR	Firefox Enterprise
Available since 60	Available since 60	Available since 149

CCK2 Equivalent: permissions.install
OMA-URI: InstallAddonsPermission
Preferences Affected: xpinstall.enabled, browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons, browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features

Examples

policies.json

{
  "policies": {
    "InstallAddonsPermission": {
      "Allow": [
        "http://example.org/",
        "http://example.edu/"
      ],
      "Default": true
    }
  }
}

JSON schema

InstallAddonsPermission JSON schema

{
  "type": "object",
  "properties": {
    "Allow": {
      "type": "array",
      "items": {
        "type": "string",
        "format": "uri",
        "pattern": "^([Ff][Ii][Ll][Ee]://.*|[Hh][Tt][Tt][Pp][Ss]?://[^/]+/?)$"
      }
    },
    "Default": {
      "type": "boolean"
    }
  }
}

Values

• Allow is a list of origins where extension installs are allowed.
• Default determines whether or not extension installs are allowed by default.

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

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>