I used FF for a year or so, but got fed up with all the crappy extensions one needs to make it really usefull, and on top of that many extensions overlap eachother so one has to weed through several of them to tweak a simgle thing that.
Now I am using IE again (ever since forst ie7 beta) and I like it a lot. It simply works. Remember: my browser is just a tool, not a way of life, and also not a way to express my political opinion.