In the settings: Master password for Thunderbird to create
- Open Thunderbird on your Computer.
- In the top right, click the dashes on the Icon with the three horizontal, and select in the open menu, select "settings".
- Then click on the "security" tab and put a check mark in the "use Master password".
- Now enter the new Master password and confirm with "OK".
Master password set up
So that you can directly to the input of the Master password in your mail view, you should see the welcome screen in Thunderbird to disable.
