i've never really had any issues with firefox, but i use so many different browsers, just so i can cross check everything. i have regular firefox, regular ie, aol explorer which uses ie to render and displays differently on some things than ie does, then netscape 7.2 and netscape 8.0 which i can set to display either using ie or firefox to render and this can be determined for each site, so one could use firefox and another could use ie.... i've never used opera or safari before... and i don't remember very much about aol cuz that was a really long time ago that i used it