I am 99% a Chrome user, and the Wife and Daughters are Pure FireFoxes. The Son is an Applehead so he is always on Safari. (My other 1% is the IE extension in Chrome for those archaic sites that refuse to recognize anything other than IE.)
It’s kinda unfair to call IE users dumb though: often IT departments are rigid in what apps they’ll allow, and if they have internal systems they cobbled together years ago that only work on IE, they may push hard against any change.
Not to mention that many of these folks are total MSheads: they can’t see any other solution to any problem. Pretty sad.