I don't know if this is related, but in 15.04 beta I got hangs and lockups on Firefox 37.0 until I turned off the "use hardware acceleration when available" feature under Menu -> Preferences -> Advanced -> General tab and then restarted the browser. I have an AMD Radeon HD 5770 video card and the fglrx (proprietary) graphics driver. With the "use hardware acceleration when available" on, Firefox was using 100% of one core almost every time I changed web page. With it off, it jumps to 80% for a few seconds and then returns to normal.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1273396 Title: Reddit webapp locks up firefox, consumes tons of CPU. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity-webapps-reddit/+bug/1273396/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
