I think what people have to remember is that Chrome is fast because there's not as many plugins for it as Firefox. Once you start loading up Firefox with a shload of plugins *cough*KingPin*cough*, it gets pretty slow. Not to mention as skilled as coders are for plugins, there's bound to be some conflicts as well.
I have 15 plugins right now for Firefox, and 4 of them don't work. With the plugins I have installed now, it's still faster than what it was. The only way I'll know is when there's an update for the plugins I haven't updated and test tit then. But fwiw, it
is faster then before which is awesome.