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.

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

Wannan tattunawa ta zama daɗaɗɗiya. Yi sabuwar tambaya idan ka na bukatar taimako.

When I click on the icon to open Firefox I get an error message " A copy of Firefox is already open, only one copy of Firefox can be open at a time".

  • 1 amsa
  • 2 sa na da wannan matsala
  • 3 views
  • Amsa ta ƙarshe daga cor-el

DavidSievert
DavidSievert
more options

I have tried to download and run Firefox on my MAC OS 10.6.7 several times and have run into this error message every time: "A copy of Firefox is already open. Only one copy of Firefox can be open at a time". A search through the computer does not fine another copy of Firefox and there is no window open or evidence of the program open. When I got this computer a year ago I copied the hard drive from the old computer onto the new and the old computer had a copy of Firefox on it and the program worked on that computer. It would not run on the new computer so I thought maybe it was due to the Intel chip so I deleted the program and downloaded the newest version at the time. This is when I started getting the error message and subsequent attempts have yielded the same results. Can you be of help?

I have tried to download and run Firefox on my MAC OS 10.6.7 several times and have run into this error message every time: "A copy of Firefox is already open. Only one copy of Firefox can be open at a time". A search through the computer does not fine another copy of Firefox and there is no window open or evidence of the program open. When I got this computer a year ago I copied the hard drive from the old computer onto the new and the old computer had a copy of Firefox on it and the program worked on that computer. It would not run on the new computer so I thought maybe it was due to the Intel chip so I deleted the program and downloaded the newest version at the time. This is when I started getting the error message and subsequent attempts have yielded the same results. Can you be of help?

All Replies (1)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

See: