Thanks for the bug report. It sounds like Firefox is the issue here, but to be sure please run 'top' in a Terminal window to confirm it is Firefox using all the CPU.
Also be careful to avoid having too many tabs open, because modern web browsers can easily use all the system resources if there are too many of them. ** Package changed: gnome-shell (Ubuntu) => firefox (Ubuntu) ** Changed in: firefox (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2056185 Title: laggy and louder fans in laptop To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/2056185/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs