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Welcome to Thunderbird 140 “Eclipse”

The wait is over! Thunderbird 140 “Eclipse” has reached totality. From all of us at the Thunderbird project, from MZLA staff and the Thunderbird Council to our global community of contributors, we’re excited to announce the latest Extended Support Release has arrived. Eclipse not only builds on Thunderbird 128 “Nebula,” but also the recent features […]

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State of the Thunder 12: Community, Android, and Mozilla Connect

We’re back with our twelfth episode of the State of the Thunder! In this episode, we’re talking about community initiatives, filling you in on Android development, and finishing our updates on popular Mozilla Connect requests. Want to find out how to join future State of the Thunders? Be sure to join our Thunderbird planning mailing […]

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Mobile Progress Report – July/August 2025

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 […]

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State of the Thunder: Mozilla Connect Updates

Welcome back to the latest season of State of the Thunder! After a short break, we’re back and ready to go. Michael Ellis, our Manager of Community Programs, is helping Alessandro with hosting duties. Along with members of the Thunderbird team and community, they’re answering your questions and keeping everyone updated on our roadmap progress […]

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VIDEO: Thunderbird Accessibility Study

Welcome back to another edition of the Community Office Hours! This month, we’re taking a closer look at accessibility in the Thunderbird desktop and mobile apps. We’re chatting with Rebecca Taylor and Solange Valverde, members of our designer, about a recent accessibility (often shortened as a11y) study. We wanted to find out where Thunderbird was […]

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Thunderbird Monthly Release 142 Recap

We’re back with another exciting Monthly Release recap! Thunderbird 142.0 brings a host of user-requested features and important bug fixes that make your email experience smoother and more reliable. From better folder management to smarter PDF handling, this release focuses on the details that matter most to your daily workflow. A quick reminder – these […]

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Thunderbird Pro August 2025 Update

In April of this year we announced Thunderbird Pro, additional subscription services from Thunderbird meant to help you get more done with the app you already use and love. These services include a first ever email service from Thunderbird, called Thundermail. They also include Appointment, for scheduling meetings and appointments and Send, an end-to-end encrypted […]

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Thunderbird Monthly Development Digest – July 2025

Hello again from the Thunderbird development team! As the northern hemisphere rolls into late summer and the last of the vacation photos trickle into our chat channels, the team is balancing maintenance sprints with ongoing feature-related projects. Whether you’re basking in the sun or bundled up for a southern winter, we’ve got plenty to share […]

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Engage Your Inbox with ‘Getting Things Done’

David Allen’s “Getting Thing Done” (GTD) system has been around for longer than Thunderbird! First published in a book of the same name in 2001, this approach to productivity is focused on freeing your brain from chaos, giving it “focus, clarity, and confidence” for creativity and new ideas. As I’m also a fan of freedom […]

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Monthly Release 141 Recap

We’re launching a brand new series that will highlight features and improvements with Thunderbird 141.0 – your front row ticket to Thunderbird’s monthly enhancements! (No more waiting in the wings so to speak). Learn what’s new, why it matters, and how it’ll transform your inbox experience. In March, we introduced a new monthly Release channel […]

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State of the Thunder: Answering Community Questions!

For the past few months, we’ve been talking about our roadmaps and development and answering community questions in a video and podcast series we call “State of the Thunder.” We’ve decided, after your feedback, to also cover them in a blog, for those who don’t have time to watch or listen to the entire session. […]

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Welcoming New Faces to the Thunderbird Community Team

Community First Thunderbird is (and has always been) powered by the people. The project exists because of the amazing community of passionate code contributors, bug-bashers, content creators, and all-around wonderful humans who have stood behind it and worked to support and maintain it over the years. And as the Thunderbird community grows, we want to […]

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VIDEO: Thunderbird 140.0 ESR “Eclipse”

Welcome back to another edition of the Community Office Hours! This month, we’re taking a closer look at Thunderbird 140.0 ESR “Eclipse,” our latest Extended Support Release! Sr. Manager of Desktop Engineering Toby Pilling (who so helpfully provides the Thunderbird Monthly Development Digest) is walking us through the latest Thunderbird. He’ll let us know what’s […]

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Mobile Progress Report – June 2025

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 […]

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Thunderbird Monthly Development Digest – June 2025

Hello once more from the Thunderbird development team! For many of our team members, the summer has started with our annual sprint to release ESR and enjoy a little time afk, as our colleagues in the southern hemisphere hunker down for winter and power through a pile of work down under. Extended Support Release is […]

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