This page explains the privacy implications of allowing remote content like images to be displayed in email messages.
The Thunderbird Password Manager securely stores your username and passwords. Learn how to save, view, delete and edit your passwords.
This article explains what end-to-end encryption is and how to use it to protect the contents of your email in Thunderbird.
Primary Password is replacing Master Password. Learn more about why we are making this change.
Make Thunderbird require you to enter a primary password in order to view or use passwords you've told Thunderbird to remember.
This tutorial explains how to set up Thunderbird to digitally sign, encrypt and decrypt messages in order to make them secure.
This article answers common questions about OpenPGP support in Thunderbird, as implemented in End-To-End Encryption (e2ee), and how it differs from Enigmail.
How to set up and use the OpenPGP recipient Alias feature in Thunderbird.
Thunderbird 91.8.0, released 5th April 2022, converts Gmail accounts to OAuth 2.0 in compliance with Google's schedule for requiring this login method.
If Thunderbird unexpectedly reports that an OpenPGP key is expired, or isn't showing some expected properties, the key might have unsafe properties.