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!

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

have mozilla loaded on my pc but i cannot open it. then i try to download it again and i'm told to close the mozilla application, but it is not open

  • 1 svar
  • 1 har dette problemet
  • 2 views
  • Siste svar av dynamite

more options

cannot open firefox. tried to download a new version but a pop up message appears telling me to close firfox, but it is not open.

cannot open firefox. tried to download a new version but a pop up message appears telling me to close firfox, but it is not open.

All Replies (1)

more options

Mozilla Firefox might be running in the background since it did not close properly the last time. See if the solutions given in this article help to solve your problem: "Firefox is already running but is not responding" error - How to fix.