Thunderbird gives users the choice between using IMAP or POP3. This documentation will explain the major differences between these protocols.
Thunderbird can be set up to work seamlessly with Google's Gmail. Messages will be synchronized between your local version of Thunderbird and web-based Gmail.
Detailed introduction to the most interesting new features, improvements, and changes visible to users in Thunderbird 91.0.
If you cannot send messages with Thunderbird, this page provides a series of steps you can follow to check for common problems.
If Thunderbird is specified as your system's default email application, it will integrate with other applications (such as word processors and web browsers).
The Ignore Thread (or Subthread) feature is very useful for mailing lists. It lets you skip reading the rest of a conversation you're not really interested in.
Make Thunderbird require you to enter a master password in order to view or use passwords you've told Thunderbird to remember.
Add-ons add functionality to Thunderbird or change its appearance. Learn how to install add-ons to Thunderbird.
Optional support for Maildir allows you to store email as individual files, unlike the default single file format. Learn about Maildir in Thunderbird.
Find out about all of the Accessibility features available in Thunderbird.
Support for Windows XP and Vista has ended.
An overview of the Thunderbird Mail and Newsgroups window, explaining the Folder pane, Message List pane, Header pane, Message pane, and Today pane.
Thunderbird contains three layout options for you to choose from to best fit your preference.
User facing changes in Thunderbird 68
Some system folders are not allowed when setting Thunderbird storage location as they cause issues.
Illustrated overview of user facing changes in Thunderbird 78.