I cannot open Thunderbird. The process isn't running, but when I click on the icon, I get the the following error:
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.
I've tried the following:
- Ending the task in Task Manager
- Uninstalling Thunderbird
- Uninstalling Firefox
- Running Thunderbird in software "safe mode" and Windows safe mode
What can I do to fix this problem?
The problem looks more serious than expected. I do not see any Mail folder in my profile at
C:\Users\your-username\AppData\Mozilla\Thunderbird. I think I lost my email.