Most of the time I use Firefox and have 3 versions installed 3.6, 4.0 beta 8 and Minefield 64 bit beta. I like Chrome but it is very buggy on my system with runtime errors that are also reported by others (but no solutions). Chrome is definitely faster. IE is there as some progs use it but I never deliberately open it. Tried Safari for Windows and it's not bad but less well supported with add-ons.