If you can't get Firefox to open, you will have to do this the hard way&#46; https://support.mozilla.org/en-US/kb/mozillacrashreporter Open the file browser / explorer on your computer&#46; '''Note: ''' You may have to enable '''Show Hidden ''' '''Folders / Files&#46; ''' Enter this in the address bar; '''Windows: ''' %APPDATA%\Mozilla\Firefox\Crash Reports\submitted '''Win 7/Vista: ''' C:\Users\'''<username>'''\AppData\Roaming\Mozilla\Firefox\Crash Reports\submitted '''Win XP/2000: ''' C:\Documents and Settings\'''<username>'''\Application Data\Mozilla\Firefox\Crash Reports\submitted '''Win 10: ''' Press <Windows> + R on the keyboard. A Run dialog will open. In the Run dialog, type %APPDATA%\Mozilla\Firefox\Crash Reports\submitted <Enter> '''Mac OS: ''' /Users/'''<username>'''/Library/Application Support/Firefox/Crash Reports/submitted '''Linux: ''' /home/'''<username>'''/&#46;mozilla/firefox/Crash Reports/submitted Copy the '''most Recent 5-7 File Names''' in the folder&#46; Press the '''Reply''' button&#46; Now go to the reply box and '''paste''' them in&#46;