Which Firefox add-ons do you use?
cfinke: AutoAuth, DOM Inspector, Feed Sidebar, Firebug, FireFound, Links Like This, OPML Support, ScribeFire, Tab History, TubeStop, TwitterBar, URL Fixer, and YouTube Comment Snob.Of course, I'm biased towards most of these, because I'm the author of all but DOM Inspector, Firebug, and Tab History.