Thunderbird saves personal information such as messages, passwords and user preferences in a set of files called a "profile".
How to move Thunderbird data (accounts, messages, passwords) to a new computer.
Thunderbird stores your personal information and settings in a profile folder. Learn to work with different profiles on Thunderbird.
Firefox and Thunderbird install Mozilla Maintenance Service to allow seamless background updates. Learn how it works and how to disable or remove it.
This article explains how you can switch to Thunderbird from your current mail application, such as Windows Mail, Outlook or also Mail on Mac OS and Evolution on Linux.
This article describes how to install Thunderbird on Windows.
This article explains how to switch from a POP to an IMAP account in Thunderbird.
The menu items File, Edit, View, etc. are located in the menu bar. This article will help you restore a missing menu bar.
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.
IMAP stands for the Internet Message Access Protocol. It enables a mail client (such as Thunderbird) to access messages stored on a mail server. It is more modern and fully featured than POP (Post Office Protocol), which is the other major protocol for accessing mail messages. Most email providers now support IMAP. To see whether your account uses IMAP or POP, check the Server Settings page in the Account Settings.
This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").
How to update to the latest version of Thunderbird on Windows XP and Vista.
This article describes the major changes in Thunderbird version 45.0 released in April 2016.
This article describes the major changes in Thunderbird version 52.0 released in April 2017.
On computers with processors older than Pentium 4, Thunderbird is no longer supported as of version 52.
Thunderbird version 52 and above are no longer supported on Mac OS X 10.6, 10.7 and 10.8. Learn more about your options.
Learn how to find out what Thunderbird version you are using, to help troubleshoot a problem or just to know if Thunderbird is up to date.
This article describes the major changes in Thunderbird version 60.0 released in August 2018.
Test about-to-be-released features and fixes in the most stable pre-release build.
User facing changes in Thunderbird 68
Different Thunderbird installations need separate profiles. Learn more.
Learn about automatic updates for Thunderbird deployments and how to ensure that the latest security patches are applied and all features are available.