You should delete the facebook account in gwibber, quit it and start it again and add the account. I just tried and it seems things have changed in Natty now there is only facebook icon, nothing else, I am not sure if its a bug or its the intentional behavior I would ask Ken to comment here. The problem might have something to do with facebook traffic issue that we had, though the situation seems much better to me.
You should delete the facebook account in gwibber, quit it and start it again and add the account. I just tried and it seems things have changed in Natty now there is only facebook icon, nothing else, I am not sure if its a bug or its the intentional behavior I would ask Ken to comment here. The problem might have something to do with facebook traffic issue that we had, though the situation seems much better to me.