Start Thunderbird in Safe Mode

If Thunderbird is no longer working properly, you can start the software in safe mode. We'll show you the options.

Thunderbird: Start the program in safe mode

• Hold down the [Shift] key on your keyboard and double-click to open Thunderbird. The program then starts in safe mode.
• Alternatively, you can start Thunderbird normally and select "Restart with deactivated add-ons" under "Help" at the top of the menu bar. Click here on the button "Continue working in safe mode".

Tip: How to move at Thunderbird

In the next practical tip, we will show you how to protect Thunderbird with a password.