Mozilla Thunderbird

Mozilla Thunderbird

A screenshot of Mozilla Thunderbird 115 running under Ubuntu 20.04.
Developer(s)	Mozilla Corporation
Stable release	158.0  / 13 October 2026
Repository	hg.mozilla.org/comm-central
Operating system	Cross-platform
Available in	Multilingual
Type	E-mail client
License	MPL, MPL/GPL/LGPL tri-license
Website	www.thunderbird.net/en-US/

Mozilla Thunderbird is a free cross-platform e-mail client developed by MZLA Technologies Corporation which is a subsidiary of the Mozilla Foundation.

References

1. ↑ "Release Notes". 13 October 2026. Retrieved 14 October 2026.
2. ↑ Castellani, Alessandro (2023-02-09). "Why We're Rebuilding The Thunderbird Interface From Scratch". The Thunderbird Blog. Retrieved 2023-11-08.

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