Comment 49 for bug 81858

I am having the same issue with Ubuntu 7.04. It used to work fine with Edgy, and started when I did a clean install of Feisty. Both Firefox and Epiphany have the exact same problems. Opening digg.com or linuxactionshow.com causes Firefox to slow down. Scrolling and opening menus becomes slow, and if I move a window over Firefox it redraws very slowly. But when I switch to another tab the speed is normal. Switching back to the slow tab causes a delay and Firefox slows down again.

I have a ATI Radeon X300. Could this be related to the fact my old install used fglrx and now I have the open source ati driver?