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.

ค้นหาฝ่ายสนับสนุน

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.

เรียนรู้เพิ่มเติม

When I go to start Firefox on a new Macbook Pro, I get a message saying it can't open because another copy of Firefox is already running -- how can I get Firefox to start?

  • 2 การตอบกลับ
  • 6 คนมีปัญหานี้
  • 29 ครั้งที่ดู
  • ตอบกลับล่าสุดโดย cor-el

more options

We have a new Macbook Pro running OSX 10.6.5. I downloaded and installed Firefox 3.6.12.dmg. After having used Migration Assistant to bring files, folders and other [but not applications] over from an older Macbook Pro and thus creating a second user, whenever I go to start Firefox, a box pops up saying that there is already a copy of Firefox running, and that only 1 instance can run at a time. I cannot locate this "second copy".

We have a new Macbook Pro running OSX 10.6.5. I downloaded and installed Firefox 3.6.12.dmg. After having used Migration Assistant to bring files, folders and other [but not applications] over from an older Macbook Pro and thus creating a second user, whenever I go to start Firefox, a box pops up saying that there is already a copy of Firefox running, and that only 1 instance can run at a time. I cannot locate this "second copy".

การตอบกลับทั้งหมด (2)

more options

OK -- I found the solution -- see http://kb.mozillazine.org/Profile_in_use In my case, there was no ".parentlock" file, but using ProfileManager to create a new profile seems to have resolved the issue.

more options