Allowed Sites

Supported on: Firefox 60 or later, Firefox 60 ESR or later

Registry

HKLM Software\Policies\Mozilla\Firefox

HKCU Software\Policies\Mozilla\Firefox

Options

List (registry values) list - list under Software\Policies\Mozilla\Firefox\InstallAddonsPermission\Allow

Description

If this policy is enabled, add-ons are always allowed for the origins indicated unless add-on install is disabled. If a top level domain is specified (http://example.org), add-ons are allowed for all subdomains as well. If this policy is disabled or not configured, the default add-on policy is followed.