Hi ! I can confirm this bug. I've visited this site "www.html.it" and this is the output of top:
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 4433 root 15 0 138m 57m 10m S 62.3 11.5 27:32.49 Xorg I use Dapper and firefox 1.5.0.7 Bye Enrico -- [Dapper] Firefox causes massive Xorg CPU usage https://launchpad.net/bugs/38131 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
