Have you upgrade to the latest version of Firefox?

i've upgraded it and in overall it works just fine. only got problems with some webinterface from our server. i won't work anymore in firefox. but that can hopefully be resolved with an update of that webinterface :) . otherwise i shall have to find out what could be the problem, it may be just some kind of option i have to turn of or on. But this will probably don't be a problem for you, so in that case: firefox 3.0 is stable and usable. hmm... also a pitty that my favorite skin doesn't work with it anymore :( ... ;)

Yeah.I upgraded my firefox to the version 3.0 two weeks ago.To my suprise,it's faster to open the URL than the oldest version.Otherwise,it's convenience and friendly.For me,I like it very much.