I'm using Adblock, NoScript, Tab Mix Plus, Flashblock and User Agent Switcher. Never had a problem with any. Wouldn't consider running without NoScript nor Adblock. Flashblock works its thing on Flash ads that Adblock misses. Tab Mix gives me more control over tabs than I can handle!
I think image blocking and gif animation are setings in FF prefs. But if you turn
all that stuff OFF you'll be back to plain text! not that
that would be so bad!