FBChat Fixer
Hate the new "facepile" Facebook Chat sidebar layout? Join the rest of the world. If you want to spend less time squinting at little green and gray dots, and more time happily chatting with long-lost acquaintances, you should install FBChat Fixer.
What is it?
FBChat Fixer is an extension for Safari 5, Google Chrome, and Firefox that presents your online Facebook friends in a more sensible manner.
The stylesheets and scripts are hosted on my server, so I can update them right away if Facebook decides to change their layout. What's not to love?