Speed Up Firefox web browser|Ubuntu Geek
Did most of those with my install of v 3.5.5, and there was a noticable speed increase (mine ran smooth before).
Moving from FF means no more addons, which comes down to how much you rely on having your addons (I am reliant on many).
Chrome is pretty damn fast but I personally would never use a G app due to privacy concerns and again you lose FF addons.
Yeah, I did all that awhile back with my ff3.0. It did a lot to speed things up, but nothing to prevent the constant unresponsive thing. I do like all the add-ons and I use a lot of them, but the time I waste rebooting FF constantly or waiting for it to respond is just too much!