Vibe Through Your Emails

Built for Thunderbird • source-available

The open-source email client you trust,
now with AI superpowers

TabMail extends Mozilla Thunderbird — the privacy-respecting, open-source email client used by millions. We just make Thunderbird smarter and give it a fresh coat of paint.^**

TabMail does not retain your email or calendar content.
When you use AI features, this data may be temporarily sent for processing but is never stored at rest.^***
You can disable AI features at any time with a single toggle.

TabMail's Thunderbird Add-on is source-available.
Explore the code, contribute, or build your own add-on features — all powered by our proprietary backend.

^** TabMail is an independent project with no affiliation to or endorsement by MZLA Technologies Corporation or Mozilla Foundation.

^*** Account information, usage data, and billing details are stored to provide and improve the service. Users may optionally share templates with the community. See our Privacy Policy for details.