This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

Firefox crashes

  • 2 biyano
  • 2 eza na bankokoso oyo
  • 2 views
  • Eyano yasuka ya Eliz210

more options

Can't initiate Firefox. Crashes immediately without opening program. Have uninstalled previous version of Firefox, installed latest and updated Windows 10. Firefox will not open in Safe Mode either.

Report Crash ID: bp-af2c8b96-2f8e-4c17-82bb-40c2d2160707

Can't initiate Firefox. Crashes immediately without opening program. Have uninstalled previous version of Firefox, installed latest and updated Windows 10. Firefox will not open in Safe Mode either. Report Crash ID: bp-af2c8b96-2f8e-4c17-82bb-40c2d2160707

Solution eye eponami

This solved the problem. Thank you so much! I noticed that there were a number of pref-#.js files, probably from each time that Firefox had started to initialize and then crashed, (ie, pref-1.js, pref-2.js, etc.) I only deleted the main pref.js file and Firefox created a new one and was able to open without crashing. Thanks again.

Tanga eyano oyo ndenge esengeli 👍 0

All Replies (2)

more options

hi Eliz210, can you try to navigate to your firefox profile folder and rename the file prefs.js that should be located there to something like oldprefs.js. please see if firefox is starting again afterwards...

Profiles - Where Firefox stores your bookmarks, passwords and other user data

more options

Solution eye oponami

This solved the problem. Thank you so much! I noticed that there were a number of pref-#.js files, probably from each time that Firefox had started to initialize and then crashed, (ie, pref-1.js, pref-2.js, etc.) I only deleted the main pref.js file and Firefox created a new one and was able to open without crashing. Thanks again.