Try clear your recent history: *[https://support.mozilla.org/en-US/kb/remove-recent-browsing-search-and-download-history Remove recent browsing, search and download history]

If you have submitted crash reports then please post the IDs of one or more recent crash reports that have a "bp-" prefix: *bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx You can find the IDs of the submitted crash reports on the <i>about:crashes</i> page. *You can open the <b>about:crashes</b> page via the location bar, like you open a website, or open the crash reports page via "Help > Troubleshooting Information". See: *http://kb.mozillazine.org/Mozilla_Crash_Reporter *https://support.mozilla.org/kb/Mozilla+Crash+Reporter ---- I'm not seeing any plugins (e.g. Flash) active on the main page. Start Firefox in <u>[[Safe Mode|Safe Mode]]</u> to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance). *Do NOT click the Reset button on the Safe Mode start window. *https://support.mozilla.org/kb/Safe+Mode *https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes ---- In Firefox Safe mode these changes are effective: *all extensions are disabled *default theme is used (no persona) *userChrome.css and userContent.css are ignored *default toolbar layout is used (localstore-safe.rdf) *Javascript JIT compilers are disabled (javascript.options.*jit) *hardware acceleration is disabled *plugins are not affected *preferences are not affected