Does Firefox only hang (gets unresponsive) or do you actually get the crash reporter? You can check the Windows Event Viewer logs to see if it is listed there. If you have submitted crash reports, please post the IDs of one or more recent crash reports that start with "bp-". *bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx You can find the report ID of recent crash reports on the "Help -> More Troubleshooting Information" (about:support) page. *click the "All Crash Reports" button on this page to open the <b>about:crashes</b> page and see all crash reports. Alternatively you can open about:crashes via the location/address bar. See also: *https://support.mozilla.org/en-US/kb/mozillacrashreporter *https://support.mozilla.org/en-US/kb/troubleshoot-firefox-crashes-closing-or-quitting *https://support.mozilla.org/en-US/kb/firefox-crashes-asking-support