Thunderbird — Free Your Inbox.
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Who We Are — Thunderbird
Meet Thunderbird Thunderbird is a free and open-source software project founded in 2003 to make communicating and collaborating better. We are supported by the talent and generosity of thousands …
Download — Thunderbird
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Releases — Thunderbird
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Thunderbird Mobile — Thunderbird
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Thunderbird Desktop — Thunderbird
Thunderbird is a free email application that’s easy to set up and customize - and it’s loaded with great features!
Thunderbird for Mobile April 2025 Progress Report
May 15, 2025 · Here is an update of what Thunderbird’s mobile community has been up to in April 2025. With a new team member, we’re getting Thunderbird for iOS out in the open and continuing to work …
Thunderbird Pro August 2025 Update - The Thunderbird Blog
Aug 19, 2025 · Our team is hard at work on Thunderbird Pro. Get the latest developments on Thundermail, Appointment, and Send in our latest update.
Thundermail and Thunderbird Pro Services - The Thunderbird Blog
Apr 4, 2025 · Announcing a new Thunderbird email service called Thundermail as part of the Thunderbird Pro suite of additional services.
Thunderbird Pro November 2025 Update - The Thunderbird Blog
Nov 20, 2025 · Our team remains hard at work on Thunderbird Pro! Get the latest developments on Thundermail, Appointment, and Send, and our Early Bird plan.