using waterfox for 4 days now, Meh.. I don't see a performance difference at all. Besides when I ran ccleaner none of the pages loaded right for about 30 min..
I'm with Vorph on this one. Doesn't matter what you use, Flash still fucks it up. I leave a couple youtubes open? Oh hai 1 gig of memory in use. Flash is shit.
I tried chrome a few times. But I always went back to firefox. My biggest problem was the lack of adblocking. i assumed google would never allow ad blocking, so I gave up on them.