So i've got ABP, Download Helper, and Color Tabs. what are some other cool plugins and ways to tweak firefox to be awesome?
TorButton can be useful. If you install/setup Tor, TorButton provides a little button that reconfigures Firefox to run through Tor. For the lazy paranoiac! You can also enable http pipelining; it allows Firefox to download data from different servers simultaneously. IIRC, normally Firefox only likes to handle one connection at a time, so if you open up two tabs and load two separate pages, it'll load one first, then the other. Pipelining allows it to load them both simultaneously. I'm too tired to go find a guide, but it ain't hard. about:config, search for network.http and look for stuff related to pipelining.