If your not already at the latest version for Linux :https://support.mozilla.org/en-US/kb/update-firefox-latest-version https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Crash_reporting/Understanding_crash_reports There does not seem to be any help solutions from support that I can find. Might check this post and or post here if running this flavour of Linux. If not should follow up with who ever you have. https://askubuntu.com/questions/693763/firefox-crashed-with-sigsegv Other place I have noticed for help is https://bugzilla.mozilla.org and over here: http://forums.mozillazine.org/viewtopic.php?f=38&t=2948411 Please let us know if this solved your issue or if need further assistance.