I can confirm the same behaviour at www.mediaresearch.org using Firefox 2 in Edgy Beta. The news ticker on the right hand side, when it is scrolling, brings the CPU to a load over 90%. Interestingly I get the same behaviour using Firefox 2.0rc2 downloaded from directly mozilla.org, so both builts seem to react the same way for me.
** Changed in: firefox (Ubuntu) Status: Needs Info => Confirmed -- System Slows To Almost A Stop https://launchpad.net/bugs/39397 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs