Thunderbird Project
Thunderbird is created by thousands of people around the world working together to build a better Internet. If you're already a member of the community, thank you for everything you've done. If you're new to Mozilla, feel free to get involved
Release Channels
Try using one of the following versions to help us test and improve the stability, security and functionality of Thunderbird.
History
Development and Testing Links
- Downloading Thunderbird Source Code
- How to Build Thunderbird
- Localize Thunderbird
- Thunderbird Review Requirements
- Thunderbird Forum
- Developer Newsgroup
- Thunderbird Wiki pages
If you have any questions about any of this, please feel free to ask questions on our forums and chat server.
