According to the web forum for the Firefox extension Friendbar, they have been waiting for a month to have an update to their extension reviewed. This update is needed so that those of us that just discovered this extension can login in to their Twitter accounts. This update was the fault of Twitter, not the folks at Friendbar (as far as I can tell). I cannot imagine what could possibly be holding up the review of this extension, unless of course you want the same reputation of the iTunes Store and App Review Board.