If you have submitted crash reports then 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 > Troubleshooting Information" page (about:support).

• click the "All Crash Reports" button on this page to open the about:crashes page and see all crash reports.

Alternatively you can open about:crashes via the location/address bar.

See also:

• http://kb.mozillazine.org/Mozilla_Crash_Reporter
• https://support.mozilla.org/kb/Mozilla+Crash+Reporter

Use one of these to close Firefox if you are currently doing that by clicking the close X on the Firefox title bar.

• 3-bar Menu button > Exit (Power button)
• Linux: File > Quit
• Mac: Firefox > Quit Firefox
• Windows: File > Exit

Thanks... I have now submitted a recent crash report ID. I've tried every conceivable way of quitting FF, but no luck! This problem has occurred since updating to FF44.0 for Linux.

Can you post the GUID of that crash report? See about:crashes.

• bp-xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx