Swiftfox - an alternative build of Firefox

Swiftfox is an extremely compiled Firefox for Linux, it is optimized for your processor and runs noticeably faster.
Personally, I have both the launch and the rendering of the pages much faster, taking into account the non-fast Athlon-XP.
Installed without any problems on ubuntu 8.10, all extensions (firebug, webdeveloper) work like a clock.
The build is supported by Jason Halme.
You can read more either Wikipedia or Swiftfox main site.