Public bug reported: After updating to Firefox 13.0.1 (13.0.1+build1-0ubuntu0.11.10.1), the browser immediately starts using large amounts of CPU time (50 to 100%), even if I start the browser in "safe mode" with plugins and other features disabled. CPU usage remains consistently high as I browse around to other places.
My home page is "about:startpage", the Ubuntu standard. This should not happen. CPU usage should be at or near zero upon loading a simple page like that. [mike@3po][~]$ lsb_release -rd Description: Ubuntu 11.10 Release: 11.10 [mike@3po][~]$ apt-cache policy firefox firefox: Installed: 13.0.1+build1-0ubuntu0.11.10.1 Candidate: 13.0.1+build1-0ubuntu0.11.10.1 Version table: *** 13.0.1+build1-0ubuntu0.11.10.1 0 500 http://us.archive.ubuntu.com/ubuntu/ oneiric-updates/main amd64 Packages 500 http://security.ubuntu.com/ubuntu/ oneiric-security/main amd64 Packages 100 /var/lib/dpkg/status 7.0.1+build1+nobinonly-0ubuntu2 0 500 http://us.archive.ubuntu.com/ubuntu/ oneiric/main amd64 Packages ** Affects: firefox (Ubuntu) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1019708 Title: Firefox pegs CPU usage immediately, even in safe mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1019708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs