Elevate Thunderbird, Do More
Add powerful cloud capabilities to Thunderbird and fund development of the always free and open source apps you love by subscribing to Pro.
Send/receive emails with a privacy protecting host based in Germany and the latest mail standards like JMAP. Choose a Thundermail domain or bring your own. Look no further to power the open source email app you love.
Instead of exchanging multiple messages to schedule a meeting, select your availability and let Appointment handle the rest. Appointment is powered by open standards and compatible with Google Calendar. You can now schedule like a pro.
Share large files with end-to-end encryption and fewer limits. Send provides a natural file attachment experience in Thunderbird Desktop and is compatible with any recipient’s inbox. Know your attachments will arrive safe and secure.
Open Source
The technology powering Thunderbird Pro is freely licensed and open source, offering you transparency, security, and freedom. By subscribing you fund the development of our other open source tools which remain free-of-charge, free-of-ads, and free-of-data-harvesting
User Focused
Thunderbird Pro is part of our mission to help you communicate, collaborate, and connect freely. The Thunderbird Desktop and Mobile apps remain the core of how we offer these benefits and your subscription helps us make them even better.
Freedom Driven
Money isn't our mission, it is the means to bring freedom and productivity to as many people as possible. Freely licensed software, open source code, and open standards liberate you and remain at the heart of Thunderbird.
Get Thundermail, Appointment, and Send in one simple subscription. You'll love the confidence, ease, and security these services add to Thunderbird. Thank you for supporting freedom.
Early Bird Plan
Our initial offering, ideal for most users
$9per month,
paid annually
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30 GB of Mail Storage
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300 GB of Send Storage
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3 Email Addresses
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15 Custom Domains