When I tried the same thing, it popped up a OpenID dialog the first time, and I confirmed it by seeing facebook.com on https://accounts.google.com/b/0/IssuedAut

When I tried the same thing, it popped up a OpenID dialog the first time, and I confirmed it by seeing facebook.com on https://accounts.google.com/b/0/IssuedAuthSubTokens https://accounts.google.com/b/0/IssuedAuthSubTokens Revoking the facebook token causes Facebook to prompt again. Subsequent attempts make the auth dialog flash briefly without displaying any content and still present the "You can change your password immediately because you are logged into your email account on this browser" message.