Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Passwords and sign in

Manage your passwords and securely access your accounts.

Protect your Thunderbird passwords with a Primary Password

Make Thunderbird require you to enter a primary password in order to view or use passwords you've told Thunderbird to remember.

Last updated: 9/13/25

Primary Password is replacing Master Password. Learn more about why we are making this change.

Last updated: 5/17/22

Main article for OAuth2 Authentication for Thunderbird Desktop

Last updated: 1 week ago

Built-in OAuth2 support for major providers, Add-on to provide organization-wide OAuth2 configuration. Customizing OAuth2 settings for individuals

Created: 2 weeks ago

Grow and share your expertise with others. Answer questions and improve our knowledge base.