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.

ابحث في الدعم

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

When I try to download and open Firefox with OS 10.6.3 I get an error message saying "A copy of Firefox is already open" -- and it's not.

  • 2 (ردّان اثنان)
  • 3 have this problem
  • 1 view
  • آخر ردّ كتبه AnonymousUser

more options

I have a new MacBook Pro running OS 10.6.3. Every time I download Firefox and try to open it, I get an error message saying, "A copy of Firefox is already open." And it's not.

This happened

Just once or twice

I bought my new computer.

User Agent

Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

I have a new MacBook Pro running OS 10.6.3. Every time I download Firefox and try to open it, I get an error message saying, "A copy of Firefox is already open." And it's not. == This happened == Just once or twice == I bought my new computer. == == User Agent == Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; en-us) AppleWebKit/531.22.7 (KHTML, like Gecko) Version/4.0.5 Safari/531.22.7

All Replies (2)

more options

Bonjour, Je ne peux pas ouvrir Firefox. Voici le message que je reçois : " Firefox est déjà en cours d'exécution mais ne répond pas. Pour ouvrir une nouvelle fenêtre, vous devez d'abord arrêter le processus Firefox existant ou redémarrer votre système." Je ne vois pas de processus existant. Si je me sers de copie de documents PDF et qu'il y a des liens dans le document, les liens ne fonctionnent pas.

Armande

more options

I have the same problem. Did you get an answer on how to fix this?