ie8 has often trouble with javascript [on many machines] and even microsfot doesnt know how to fix it yet. if u didnt have this problem then ur luck and ie8 is fine.
ALways use firefox, clean look and feel and faster browsing, love it
I second that ... Chrome is fastest by far but not very secure. FF is like a 1970 station wagon with 100k miles on it. Throw it out...