attention, security gap
After setting the master password, you can view emails, just cancel the password entry window! You can't send emails, but you can read them.
Opaite Mbohovái (3)
This is only for passwords, you can skip the monit and use Thunderbird without entering anything.
There should be a description in Settings similar to this: A Primary Password protects all your passwords.
Please read this article explaining what does it do: Protect your Thunderbird passwords with a Primary Password.
You could set up a private account within Windows and place Thunderbird there. Otherwise, Thunderbird does not protect starting the program itself
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