Optimized Firefox builds for windows

I use firefox, some of the time, for browsing the web (i’m currently testing IE7, and i like it). A while back i found G4 and G5 optimized builds of FireFox for OSX. well, today, care of the Download Squad, i have found Optimized builds of FireFox for windows users for processors such as AMD Athlons, Athlon 64s, Opterons, Intel P4s, Pentium Ms, Xeons, etc. Very cool stuff.