One of the most noticeable changes for Thunderbird 91 is the new account setup wizard. That’s a lot of geekspeak to say that Thunderbird 91 will feel like it got a speed boost. The new multi-process Thunderbird takes better advantage of the processor in your computer by splitting up the application into multiple smaller processes instead of running as one large one. Thunderbird has gotten faster with multi-process support. Multi-Process Support (Faster Thunderbird)

In this post we’ll focus on the most notable and visible ones. There are a ton of changes in the new Thunderbird, you can see them all in the release notes. Our team was blown away by the support we received in terms of donations and open source contributions and we extend a big thanks to everyone who helped out Thunderbird in the lead up to this release. But in the midst of a global pandemic, the important role that email plays in our lives became even more obvious. This past year had its challenges for the Thunderbird team, our community and our users. Thunderbird 91 is our biggest release in years with a ton of new features, bug fixes and polish across the app. Existing Thunderbird users will be updated to the newest version in the coming weeks.

The newest stable release of Thunderbird, version 91, is available for download on our website now.

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