Okay please do an update as this script no longer works, or please remove it.
I've been looking for a script that lets you remove friends easily, thanks for sharing. I deleted about 200 people after quitting mafia wars, and you saved me a LOT of time. I just had to middle-click on someone's name in my list, and they're gone!
I do have one suggestion. I noticed you have set the page to go to blank after the person is removed, is there a way to make the script also close the tab? I looked in about:config for something related to letting scripts close tabs, and couldn't find anything.
Thanks again, im a fan!