It affects me too. Kubuntu 14.04 Firefox 34 grep flash ii anki 2.0.31 all flexible, intelligent flashcard program ii flashplugin-installer 11.2.202.425ubuntu0.14.04.1 amd64 Adobe Flash Player plugin installer
dpkg -l | grep vdpau ii libvdpau1:amd64 0.7-1 amd64 Video Decode and Presentation API for Unix (libraries I guess this is the same issue as: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/635023 But I didn't had the problem with previous version of Firefox. I also have nvidia card but didn't install drivers, I guess I run on Nouveau. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1405874 Title: firefox plugin-container is using too many CPU cycles To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1405874/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs