Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

I am getting complaints from links that Firefox is already running and needs to be closed when it is not visibly running. But, I do find it as a process that IS running. What gives?

  • 1 reply
  • 8 have this problem
  • 4 views
  • Last reply by cor-el

more options

I click on a link in an E-mail. It complains that Firefox is already running and I must close it. Firefox is NOT visibly running. I check via Task Manager to verify. I find Firefox is running as a process. I kill the process and then can proceed. I did use Firefox earlier and closed it.

I click on a link in an E-mail. It complains that Firefox is already running and I must close it. Firefox is NOT visibly running. I check via Task Manager to verify. I find Firefox is running as a process. I kill the process and then can proceed. I did use Firefox earlier and closed it.

All Replies (1)

more options

Make sure that you do not start Firefox with the -no-remote switch or have set the environment variable MOZ_NO_REMOTE=1 (Control Panel > System > Advanced > Environment variables).

If you need to have more than one profile open at the same time then start subsequent instances with the -no-remote command line switch.
You can send links from other programs to a Firefox instance that is started with -no-remote, you need to drag links in a Firefox window in such cases.

See http://kb.mozillazine.org/Opening_a_new_instance_of_Firefox_with_another_profile