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

Este fío arquivouse. Faga unha nova pregunta se precisa axuda.

Firefox is already running

  • 1 resposta
  • 3 have this problem
  • 5 views
  • Last reply by kfd01567

billynews
billynews
more options

after creating a second User Profile I'm always getting "Firefox is already running" message if I try to open a HTML-File from the Filesystem by double-clicking it - default action for HTML-File is open. Looks like Windows (XP SP3) tries to start Firefox a second time instead of using the running instance. I assume file association is somehow wrong - maybe the DDE-Message?

after creating a second User Profile I'm always getting "Firefox is already running" message if I try to open a HTML-File from the Filesystem by double-clicking it - default action for HTML-File is open. Looks like Windows (XP SP3) tries to start Firefox a second time instead of using the running instance. I assume file association is somehow wrong - maybe the DDE-Message?

All Replies (1)

kfd01567
kfd01567
more options

If you can solv the problem with another Windows account (pls test create), I recommend the following solution.
http://flatsoft.blogspot.com/2012/01/firefox-is-already-running-not-yet.html