Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

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

Echekwara usoro a. Biko jụọ ajụjụ ọhụrụ ma ọ bụrụ na ị chọrọ enyemaka.

Won't open

  • 1 nzaghachinzaghachi
  • 1 nwere nsogbu anwere nsogbu a
  • 1 view
  • Nzaghachi ikpeazụ nke David McRitchie

21godn
21godn
more options

Won't open says please close already running firefox or restart computer. And I have restarted and shut down and it still won't open. WHAT THE HELL I've even deleted the program and downloaded it and it just won't work. HELP!!

Won't open says please close already running firefox or restart computer. And I have restarted and shut down and it still won't open. WHAT THE HELL I've even deleted the program and downloaded it and it just won't work. HELP!!

All Replies (1)

David McRitchie
David McRitchie
more options

The application may have shut down abnormally, leaving the lock in place. To fix this, open the profile folder and delete the parent.lock file.

The quickest way to get to your profile is through Help>Troubleshooting information.. (or type about:support into the location bar) then use "Open containing folder".