Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

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

Getting error that Thunderbird is already running when it isn't

  • 1 reply
  • 1 has this problem
  • 5 views
  • Last reply by christ1

more options

Even when the computer is first turned on, starting Thunderbird gives a message that it is already running when it is not. Checking from the Task Manager shows no instances of it running.

How do I fix this? Latest iteration of Thunderbird running under Windows 7, SP1, with 8 Gb RAM.

Even when the computer is first turned on, starting Thunderbird gives a message that it is already running when it is not. Checking from the Task Manager shows no instances of it running. How do I fix this? Latest iteration of Thunderbird running under Windows 7, SP1, with 8 Gb RAM.

All Replies (1)