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 60, Firefox ESR 60
CCK2 Equivalent: permissions.install
Preferences Affected: xpinstall.enabled, browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons, browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features

Examples

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

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

Windows (Intune)

OMA-URI:

./Device/Vendor/MSFT/Policy/Config/Firefox~Policy~firefox~Addons/InstallAddonsPermission_Allow

Value (string):

<enabled/>
<data id="Permissions" value="1&#xF000;https://example.org&#xF000;2&#xF000;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>