I can confirm this, the page that locked firefox (2.0 b1) was: http://www.cesarius.net/unreal-tournament-2007
I think the issue is related with Flash content, in my case, i was playing an embedded YouTube video (Flash player). It's seems random a random crash thought, same page doesn't always crash... -- firefox locked up and caused 100% CPU activity https://launchpad.net/bugs/57919 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs