Betterbird
A Thunderbird-based email client with an additional set of fixes and usability changes.GetMPL-2.0
Thunderbird
Manage email accounts, calendars, and contacts in Mozilla's desktop mail application.
MPL-2.0 · Downloads from thunderbird.net
- License
- MPL-2.0
- Open source
- Source
- GitHub
- thunderbird
- Verified
- 2026
About Thunderbird
Thunderbird combines email, calendars, and contacts in a desktop workspace. It supports multiple accounts and extensions for adjusting how messages and tasks are handled.
The application is distinct from any email hosting provider. Its current source lives in the Thunderbird desktop repository and builds on Mozilla's shared platform.
Information
- Source code
- thunderbird/thunderbird-desktop
- License
- MPL-2.0
- Website
- thunderbird.net
- Download
- thunderbird.net
- Category
- Internet
- Evidence checked
- Tags
Maco links to each project’s official download. Check its release notes for macOS version and Apple silicon support. The verification date records our license and source review, not a security audit.
Sources and image credits
- github.com/thunderbird/thunderbird-desktop
- github.com/thunderbird/thunderbird-desktop/blob/main/mail/app/nsMailApp.cpp
- www.thunderbird.net/en-US/download/
- icon.png: Mozilla Foundation / MZLA Technologies Corporation. Trademark of the Mozilla Foundation; branding file is MPL-2.0 but grants no trademark rights (mail/branding/thunderbird/LICENSE); used unmodified (256px representation extracted) only to identify the app in a non-commercial directory.
License and artwork notices
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