Remote Content in Messages
This page explains the privacy implications of allowing remote content like images to be displayed in email messages.
Password Manager - Remember, delete and change passwords in Thunderbird
The Thunderbird Password Manager securely stores your username and passwords. Learn how to save, view, delete and edit your passwords.
Introduction to End-to-end encryption in Thunderbird
This article explains what end-to-end encryption is and how to use it to protect the contents of your email in Thunderbird.
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.
OpenPGP Recipient Alias Configuration
How to set up and use the OpenPGP recipient Alias feature in Thunderbird.
Automatic Conversion of Google mail accounts to OAuth 2.0 Authentication
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.
OpenPGP in Thunderbird - HOWTO and FAQ
This article answers common questions about OpenPGP support in Thunderbird, as implemented in End-To-End Encryption (e2ee), and how it differs from Enigmail.
Digitally Signing and Encrypting Messages
This tutorial explains how to set up Thunderbird to digitally sign, encrypt and decrypt messages in order to make them secure.
Primary Password is replacing Master Password in Thunderbird
Primary Password is replacing Master Password. Learn more about why we are making this change.
Unsafe properties of OpenPGP keys might be ignored
If Thunderbird unexpectedly reports that an OpenPGP key is expired, or isn't showing some expected properties, the key might have unsafe properties.