Experience The Future Of Thunderbird

Join the Beta today, and enjoy an exciting preview of the new features and visual enhancements coming to Thunderbird 115 Supernova. You can still run Thunderbird 102 after installing Beta on Windows with no special settings, unless you are using POP mail accounts. See details in the beta knowledge base.

Thunderbird Beta is early access software, so please report the rough edges using the Help menu. You can find assistance via “Get Help” and “Share Ideas and Feedback” as well as the Beta Topicbox forum.

Install now!

Just one more step!Finish installing, and start enjoying Thunderbird Beta.

Having trouble? Get help with your installation.

Learn more about Thunderbird 115 Supernova

Thunderbird 115 Supernova Preview: The New Folder Pane
Article Featured Image

Thunderbird 115 "Supernova" will be intuitive and welcoming to new users, while remaining familiar and comfortable for veteran users. See how we're accomplishing that balance with a preview of the new Folder Pane.

February 14, 2023 Continue Reading
Why We’re Rebuilding The Thunderbird Interface From Scratch
Article Featured Image

"Why does Thunderbird look so old, and why does it take so long to change?" Let's answer that burning question with some important history, and a look into the future.

February 9, 2023 Continue Reading
Thunderbird Supernova Preview: The New Calendar Design
Article Featured Image

Life gets busy. That's why the new calendar in Thunderbird Supernova is being designed to look and feel comfortable. It will help you more efficiently sift, sort, and digest all the crucial details of your day.

November 9, 2022 Continue Reading
Thunderbird Vector Wordmark