Recently we completed a security audit of Thunderbird Send, our upcoming end-to-end encrypted large file sharing service, with the help of the @npub1c8cu...lkhj and 7ASecurity. Read our summary of the report's findings, and learn how we've acted on these recommendations to be more secure and worthy of the trust our user community places in us. #Thunderbird #OpenSource #InfoSec
The Thunderbird Blog
Thunderbird Send Security Audit with OSTIF and 7ASecurity - The Thunderbird Blog
As we get ready for the Thunderbird Pro launch, we want every service we offer to be secure and worthy of the trust our community places in us. Tha...
Fixing old Android code, integrating with the upcoming Thunderbird Pro, and making a balanced iOS roadmap are all part of our mobile development goals in 2026. #Thunderbird #OpenSource
The Thunderbird Blog
State of the Thunder 14: The 2026 Mobile Roadmap - The Thunderbird Blog
In the penultimate State of the Thunder for 2025, we're walking through our plans and priorities for the Android AND iOS apps in 2026.
If your school or workplace uses Exchange for email, accessing it with Thunderbird just got easier! Our blog post has all the details on getting connected. Additional features, like calendar and address book, are in the works! #Thunderbird #Exchange
The Thunderbird Blog
Thunderbird Adds Native Microsoft Exchange Email Support - The Thunderbird Blog
Thunderbird Exchange support has finally landed for email in the latest monthly release. Find out what's in, out, and still on the way.
It seems like yesterday we released Thunderbird for Android. See how fast our first mobile app is growing up. #Thunderbird #OpenSource #Android
The Thunderbird Blog
VIDEO: An Android Retrospective
Thunderbird for Android has just turned one! Join our retrospective for what we've accomplished this year and take a peek at what's ahead!
Thunderbird 144 is out now! Exchange support is closer to officially landing, dragging and dropping your folders is easier, and we're adding new ways to keep your email safe! #Thunderbird #OpenSource #Email https://blog.thunderbird.net/2025/10/thunderbird-monthly-release-144-recap/
We've got the latest updates on our Android and upcoming iOS apps! Take a sneak peak at the new Android account drawer, iOS account setup and upcoming monthly release schedule. Also, we explain why recent updates affected read/unread message readability and how we're fixing it in the short AND long term. #Thunderbird #OpenSource
The Thunderbird Blog
Mobile Progress Report - July/August 2025 - The Thunderbird Blog
Mobile Progress Report is back with updates on the Android drawer and visual improvements, iOS mockups, and a new monthly release cadence
After a short hiatus, State of the Thunder is back! This time, in addition to tackling community questions, we're also responding to the top 20-ish requested features from Mozilla Connect. Get the latest news on Sync, translations, and more! #Thunderbird #OpenSource
The Thunderbird Blog
State of the Thunder: Mozilla Connect Updates - The Thunderbird Blog
State of the Thunder is back for a new season! We're answering more questions and updating you on top requested features from Mozilla Connect
Thunderbird 142.0 has a host of exciting features and bug fixes. From improving the PDF experience to better support for quiet time, learn what's just landed in our recap of the newest monthly release. #Thunderbird #OpenSource #Email
The Thunderbird Blog
Thunderbird Monthly Release 142 Recap - The Thunderbird Blog
Our latest monthly release makes resetting folder order easy, lets you sign PDFs, honors 'Do Not Disturb' in native notifications, and more!
Archiving from notifications, warnings about expiring PGP keys, bug fixes, and more! Find out what's in Thunderbird 141.0 (and how you can get it) in our new Monthly Release Recap! #Thunderbird #OpenSource #Email
The Thunderbird Blog
Monthly Release 141 Recap - The Thunderbird Blog
Our latest monthly Release, 141.0, is out. Learn about features, bug fixes, and performance improvements you can get in Thunderbird today!
We've been doing State of the Thunder, our bi-weekly deep dive into development and roadmap discussion, for a few months now! One common thing we hear is "this info is great! But, can you put it in a blog?" And starting with episode 10, we have. All of the latest Thunderbird updates and discussions, now in an easy to read format - with links to the videos and podcasts for those of you who still want to watch or listen! #Thunderbird #OpenSource
The Thunderbird Blog
State of the Thunder: Answering Community Questions! - The Thunderbird Blog
State of the Thunder is now in video, podcast, and blog format! In the latest issue, we're answering your community questions!