Installed Swiftfox today. Very good thing. Quite fast performance, lower memory usage(at first blush) in compare with FireFox 2.0. Speaking of memory, I don’t know, maybe it’s just merit of FireFox 3(I didn’t try it) witch latest Swiftfox build use. Swiftfox site:

Swiftfox is an optimized build of Mozilla Firefox. Swiftfox has builds for both AMD and Intel processors and is based on the most cutting edge Firefox source code available.