In Firefox extensions the identity.getRedirectURL returns a URL like this: https://[extension_id_hash].extensions.allizom but when I add this URL to the "Authorized redirect URIs" then I get a warning in the "Oauth Overview" that the Domain Verification fails probably because of the domain allizom

Note that for Chromium extensions a similar URL is added but with the domain chromiumapp and that one passes domain verification, most likely it's whitelisted by Google.

Can we get allizom whitelisted or how do we get it verified?