Known Issues
Repeated message of loot gained
When using Facebook chat, AttackX and other bookmarklets may repeat the same message over and over.
Fix: Do not chat with people while running a bookmarklet.
Language problems
Fix: Change your Facebook language. Bookmarklets only support Mafia Wars in english.
Just a note about repeat gifter. It looks like zynga has capped the number of gifts received at 100, after that the oldest is discarded. It may just be a bug at the moment, or it might be a permanent change, either way it does affect using repeat gift.