Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Cari Bantuan

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.

Pelajari Lebih Lanjut
Diarsipkan

can't start firefox 'cause it notifies me that there is allready a copy running, but that's not true. Please help.

cor-el replied
p-ivo

I get this message when i try to start a Firefox:

Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system

I did restart many times but it is a bogus message because there isn't any other copy running, for sure.

I get this message when i try to start a Firefox: Firefox is already running, but is not responding. To open a new window, you must first close the existing Firefox process, or restart your system I did restart many times but it is a bogus message because there isn't any other copy running, for sure.

Semua Balasan (3)

You can check if you still have a (default) profile folder as listed in profiles.ini.
If not then delete profiles.ini and let Firefox create a new default profile.

Thank you!

That worked!

I lost my bookmarks, but now I have a functional firefox.

Thanks a bunch.