Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

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

Wo archive tread sia. Meɖekuku bia biabia yeye ne ehia kpeɖeŋu.

Thunderbird wont open because "it is already running"

  • 2 ŋuɖoɖowo
  • 2 masɔmasɔ sia le wosi
  • 2 views
  • Nuɖoɖo mlɔetɔ billseldon

billseldon
billseldon
more options

While trying to load my old Thunderbird profile data I must have entered an incorrect profile address, causing it not to load. I tried to correct this by deleting the new installation and reinstalling a new download, but now get the message: "Thunderbird is already running, but is not responding. To open a new window, you must first close the existing Thunderbird process, or restart your system." Task Manager shows no other instance running, so I have restarted the computer - same message. I have also closed the computer, waited and then restarted. Same message displayed. Please - Any suggestions as to how to overcome this problem?

While trying to load my old Thunderbird profile data I must have entered an incorrect profile address, causing it not to load. I tried to correct this by deleting the new installation and reinstalling a new download, but now get the message: "Thunderbird is already running, but is not responding. To open a new window, you must first close the existing Thunderbird process, or restart your system." Task Manager shows no other instance running, so I have restarted the computer - same message. I have also closed the computer, waited and then restarted. Same message displayed. Please - Any suggestions as to how to overcome this problem?

Ŋuɖoɖo si wotia

Thanks, It may have been locked, but I had no idea how to unlock. However, I downloaded and applied the latest release. This enabled me to get into the Profile file and correct the address and Thunderbird now working. I guess the download did the unlocking, but it is a mystery as to how previous delete Thunderbird, then Download a fresh version and apply again did not also do this?

Xle ŋuɖoɖo sia le goya me 👍 0

All Replies (2)

Zenos
Zenos
more options

You probably have a lock file.

http://kb.mozillazine.org/Profile_in_use

billseldon
billseldon Biabia la
more options

Ɖɔɖɔɖo si wotia

Thanks, It may have been locked, but I had no idea how to unlock. However, I downloaded and applied the latest release. This enabled me to get into the Profile file and correct the address and Thunderbird now working. I guess the download did the unlocking, but it is a mystery as to how previous delete Thunderbird, then Download a fresh version and apply again did not also do this?