I mostly use the Tails browser, but I also use Firefox in Fedora with several add-ons such as TrackMeNot, HTTPS Everywhere, uBlock Origin, NoScript, and Fingerprint Detector.
I would like to obfuscate collection against myself when I use Firefox. I do not consider active attack, only passive.
CC Cleaner and AVG Internet Security are used to remove cookies.
What more can I do? I am not only talking about fingerprinting, which has been answered elsewhere. I want to obfuscate all possible data against collection of every sort, and surely someone on this venerable website can address my question.