http://bugzilla.opensuse.org/show_bug.cgi?id=1046119 Bug ID: 1046119 Summary: Firefox goes to 100% CPU on return from hibernation. about:perfomance tab suspected. Classification: openSUSE Product: openSUSE Distribution Version: Leap 42.2 Hardware: x86-64 OS: openSUSE 42.2 Status: NEW Severity: Normal Priority: P5 - None Component: Firefox Assignee: bnc-team-mozilla@forge.provo.novell.com Reporter: carlos.e.r@opensuse.org QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- On restore from hibernation, with several Firefox windows opened with several tabs, Firefox uses 100% CPU non stop. The "about:perfomance" tab says that the "about:performance may currently be slowing down Firefox". Clicking on "reload tab" solves the issue, after a minute or two. I have been observing this for some months. Currently using Leap 42.2 and FF ESR 52.2.0 (64-bit) -- You are receiving this mail because: You are on the CC list for the bug.