The first Mobile Progress Report of 2026 provides a high-level overview to our mobile plans and priorities for the coming year. Android Our primary focus this year revolves around a better user experience and includes a major push to improve quality. We want to make the app stable, reduce our bugs, and speed up our […]

2025 was an exciting year for Thunderbird. Many improvements were shipped throughout the year, from faster updates with a new release cadence, to a modernized codebase for the desktop app. We made big strides on our mobile apps and introduced the upcoming Thunderbird Pro to the world. As we wrap up the year, a huge […]

A Brief Self-Introduction Hello community, it’s a pleasure to be here and help take part in a product I’ve used for many years, but now with the focus on Mobile.  I am Jon Bott, and am the new Engineering Manager for the Thunderbird Mobile teams.  I am passionate about native mobile development and am excited […]

Hello wonderful community, it has been a while since the last Mobile update. A lot has happened in the past 2 months, so let’s jump right into a quick overview of current work in progress and primary efforts. Account Drawer in progress If you’re rocking the Beta version of Thunderbird for Android, you might have […]

Welcome back to another update on how things are going on mobile.  Thunderbird for iOS We’ve been going back and forth between database and JMAP for Thunderbird for iOS. Most of the visible work has flown into creating an initial JMAP library that we can use to access the parts that we need from Thunderbird […]

Thunderbird for iOS We’re growing a few more stars! We’re so happy to hear there is great interest in Thunderbird for iOS, and hope to reach a stage soon where you all can be more involved. Thank you, also, to those of you who’ve submitted an increasing number of ideas via Mozilla Connect. Todd has […]

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 on release feedback from Thunderbird for Android. The Team is Growing Last month we introduced Todd and Ashley to the MZLA […]

Hello, everyone, and welcome to the Thunderbird for Android March 2025 Progress Report. We’re keeping our community updated on everything that’s been happening in the Android team, which is quickly becoming a more general mobile team with some recent hires. In addition to team news, we’re talking about our roadmap board on GitHub. Team Changes […]

Hello, everyone, and welcome to the first Android Progress Report of 2025. We’re ready to hit the ground running improving Thunderbird for Android experience for all of our users. Our January/February update involves a look at improvements to the account drawer and folders on our roadmap, an update on Google and K-9 Mail, and explores […]

The Thunderbird Mobile team are crafting the newest chapter of the Thunderbird story. In this month’s office hours, we sat down to chat with the entire mobile team! This includes Philipp Kewisch, Sr. Manager of Mobile Engineering (and long-time Thunderbird contributor), and Sr. Software Engineers cketti and Wolf Montwé (long-time K-9 Mail maintainer and developer, […]

It’s been a while since our last update in August, and we’re glad to be back to share what’s been happening. Over the past few months, we’ve been fully focused on the Thunderbird for Android release, and now it’s time to catch you up. In this update, we’ll talk about how the launch went, the […]

Just over two years ago, we announced our plans to bring Thunderbird to Android by taking K-9 Mail under our wing. The journey took a little longer than we had originally anticipated and there was a lot to learn along the way, but the wait is finally over! For all of you who have ever […]

The Thunderbird for Android beta is out and we’re asking our community to help us test it. Beta testing helps us find critical bugs and rough edges that we can polish in the next few weeks. The more people who test the beta and ensure everything in the testing checklist works correctly, the better! Author’s […]

The wait is almost over! Thunderbird for Android will be here soon. As an open-source project, we could not succeed without the incredible volunteer contributors who help us along the way. Whether you’re a fan of problem-solving, localization, testing, development, or even just spreading the word, there’s a role for you in our community. Contributing […]

We’re back for an update on Thunderbird for Android/K-9 Mail, combining progress reports for July and August. Did you miss our June update? Check it out! The focus over these two months has been on quality over quantity—behind each improvement is significant groundwork that reduces our technical debt and makes future feature work easier to […]