

ThunderCast
MZLA Technologies Corporation
An inside look at the making of Mozilla Thunderbird, and community-driven conversations with our friends in the open-source software space.
Episodes
Mentioned books

Jun 9, 2025 • 56min
State of the Thunder 6: Release on Snap and flatpak, Accessibility, Mozilla, and building Thunderbird
We're back with another State of the Thunder! In Volume 6, we're discussing the complexities bringing the monthly Release channel to snap and flatpak, increasing accessibility for assistive technologies, our relationship with Mozilla, why building Thunderbird is hard (and how we're trying to make it less so), and more!
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May 27, 2025 • 59min
State of the Thunder 5: Setting Roadmap Priorities
In the fifth volume of State of the Thunder, we're focusing on priorities. How do we begin on a priority roadmap project? How do we decide what to release and when to release it? And how do we adjust priorities for the benefit of our users? Additionally, we have news about Thunderbird Sync (!), what MZLA is doing to improve the open ecosystem, and updates on Thunderbird Pro and the mobile apps.
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May 7, 2025 • 56min
State of the Thunder 4: 2025 Roadmap Priorities
Previously on State of the Thunder, we talked about how we created our desktop roadmap for 2025 and 2026. In this installment, we're diving into how we prioritize work on the desktop app and how we're trying to get better at completing our high-priority items. If you've ever wondered, "When is that feature going to land?" this State of the Thunder is worth listening to!
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May 3, 2025 • 53min
State of the Thunder 3: Our Mobile Roadmap (Android AND iOS!)
In the latest State of the Thunder, we're talking all about our mobile apps, currently on Android and coming soon to mobile. Sr. Manager of Mobile Engineering Philipp Kewisch leads the discussion on the the roadmap, responding to frequently requested features, and our predictions for the iOS Alpha.
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May 1, 2025 • 56min
State of the Thunder 2: Bugzilla backlog, stability, and collaborating with the Council
In our second State of the Thunder, we expand on the purpose of these meetings and go back to our roadmap. From there, we talk about bugs and stability, discussing how to tackle the backlogs of bugs in Bugzilla and whether Thunderbird is more or less stable now than in years past.We also chat about how to improve collaboration between MZLA and the Thunderbird Council, and finish with technical discussion on the address book's SQLite database and the Thunderbird CLI.
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Apr 30, 2025 • 57min
State of the Thunder 1: Working in the open on the 2025 roadmap
In our inaugural State of the Thunder, Alessandro Castellani, Director of Desktop and Mobile apps, leads a discussion on the 2025 desktop roadmap with members of the Thunderbird team and Council. Beyond features, the chat covers our users, our values, and our commitment to working in the open.
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Apr 4, 2024 • 36min
ThunderCast #6: Office Hours Q&A
The podcast covers topics like Exchange support for Android, add-ons for Android, migration from K-9 Mail, CalDAV and CardDAV for Android, Thunderbird for Android sync, Exchange support on desktop, threaded conversations view, full sender name column, and Thunderbird webmail

Sep 27, 2023 • 1h 1min
ThunderCast #5: Remote Work 101
Heather, Chris, and Jason from the Thunderbird team share tips and tricks for remote work. They also discuss origin stories, geeky projects, Thunderbird Send, and helpful tools like Pomodoro Technique. Listeners Pedro and Mike contribute tips too. Exciting feature updates mentioned.

Sep 13, 2023 • 56min
ThunderCast #4: Will The Real moz://a Please Stand Up?
The Thunderbird team reflects on their experience at the Mozilla All-Hands event, discussing the impact of in-person meetings and their positive perception of AI. They explore Mozilla's projects for the betterment of the internet, the issue of underrepresentation in language models, and the future of AI. Additionally, they share their insights on the future of Thunderbird, expressing confidence in the team's ability to execute goals and their commitment to privacy and core values.

Jul 21, 2023 • 1h 30min
ThunderCast #3: Behind The Scenes of Supernova
Hello Thunderbird family, and welcome back to a long-overdue episode of the ThunderCast! Ryan, Alex, and Jason get together to talk about the new features and improvements in Thunderbird 115 "Supernova." But they also share WHY those features were developed, and what's being worked on right now. Plus, Ryan shares some huge news about the future of the Thunderbird Project! It's a casual, unscripted, and informative behind-the-scenes conversation. USEFUL LINKS:What's New In 115 (Use Micah's awesome slider!)Why We're Rebuilding ThunderbirdThunderbird on MastodonThunderbird on TwitterThunderbird on LinkedIn
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(00:00) - Intro
(04:11) - The pulse of our users
(11:16) - Moving to monthly releases
(14:24) - Why the name “Supernova?”
(15:39) - Explaining the new Thunderbird logo
(23:22) - What’s New in Thunderbird 115?
(32:09) - Explaining the Unified Toolbar
(40:08) - Why the new icons matter
(44:11) - You are my Density
(53:52) - Jason gushes about the App Menu
(01:01:01) - Finally! Sortable folder modes
(01:05:17) - Ryan gushes about Cards view
(01:08:37) - Championing customization
(01:10:37) - The infamous mockup
(01:12:00) - Addressing the address book
(01:17:03) - Iterating to perfection
(01:19:32) - Jason’s 2 hats
(01:24:33) - The ThunderVerse!


