I used to have a lot more extensions installed on Firefox, but right now all I actually use is:
AdBlock Plus, Download Statusbar, and Tab Scope.
Although one personal 'hack' almost counts: I moved the bookmark toolbar up next to the system menu, to use up all that space and give me quick access to all the sites I read. I have about 14 folders up there, and the Readability bookmarklet. I'm nervous about FF4 because I don't know where I'll be able to put my bookmarks...
AdBlock Plus, Download Statusbar, and Tab Scope.
Although one personal 'hack' almost counts: I moved the bookmark toolbar up next to the system menu, to use up all that space and give me quick access to all the sites I read. I have about 14 folders up there, and the Readability bookmarklet. I'm nervous about FF4 because I don't know where I'll be able to put my bookmarks...