Thunderbird: Free Your Inbox

In-app purchases
3.8
5.07K reviews
500K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Thunderbird is a powerful, privacy-focused email app. Effortlessly manage multiple email accounts from one app, with a Unified Inbox option for maximum productivity. Built on open-source technology and supported by a dedicated team of developers alongside a global community of volunteers, Thunderbird never treats your private data as a product. Supported solely by financial contributions from our users, so you never have to see ads mixed in with your emails again.

What you can do



  • Ditch multiple apps and webmail. Use one app, with an optional Unified Inbox, to power through your day.

  • Enjoy a privacy-friendly email client that never collects or sells your personal data. We directly connect you to your email provider. That’s it!

  • Take your privacy to the next level by using OpenPGP email encryption (PGP/MIME) with the “OpenKeychain” app, to encrypt and decrypt your messages.

  • Choose to sync your email instantly, at set intervals, or on-demand. However you want to check your email, it’s up to you!

  • Find your important messages using both local and server-side search.



Compatibility



  • Thunderbird works with IMAP and POP3 protocols, supporting a wide range of email providers, including Gmail, Outlook, Yahoo Mail, iCloud, and more.



Why use Thunderbird



  • The trusted name in email for over 20 years - now on Android.

  • Thunderbird is fully funded by voluntary contributions from our users. We don’t mine your personal data. You are never the product.

  • Made by a team that is as efficiency-minded as you are. We want you to spend minimal time using the app while getting maximum in return.

  • With contributors from all over the world, Thunderbird for Android has been translated into more than 20 languages.

  • Supported by MZLA Technologies Corporation, a wholly owned subsidiary of the Mozilla Foundation.



Open Source and Community



  • Thunderbird is free and open source, which means its code is available to see, modify, use and share freely. Its license also ensures that it will be free forever. You can think of Thunderbird as a gift from thousands of contributors to you.

  • We develop in the open with regular, transparent updates on our blog and mailing lists.

  • Our user support is powered by our global community. Find the answers you need, or step into the role of a contributor - whether it’s answering questions, translating the app, or telling your friends and family about Thunderbird.

Updated on
Jul 15, 2025

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Messages and 7 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

3.8
4.77K reviews
Ingo N.
November 2, 2024
I used to use Thunderbird on my desktop way back. On my phone I used GMail for years. Thunderbird is SO MUCH better! It's small. It's fast! It's open source. It's actually deleting when you select to delete which was a problem with the Gmail app where emails would still be there when I check the account on the computer later. I am so glad my favorite Thunderbird is now on Android! Thank you!
211 people found this review helpful
Did you find this helpful?
Agent 187
July 23, 2025
Nice streamlined email app with a nice clear screen view, especially in landscape mode. Update: now the font is too small and there's no setting to change it?! My phone is already on large font setting, so I can't increase the size anymore for the thunderbird app. Now I have too uninstall and probably go back to K9.
2 people found this review helpful
Did you find this helpful?
Praveen Potturu
July 13, 2025
Some recent app update appears to have broken back gesture, I can't navigate back in the app with swipe in from edge gesture anywhere in the app even in settings pages, the back button on the top left is the only way. There is no way to disable left/right swipe action that switches between emails, it almost always activates accidentally. I am uninstalling this. My hunt for a better email app continues. PS: Don't ask me to contact support, I have better things to spend that time on.
3 people found this review helpful
Did you find this helpful?
Mozilla Thunderbird
July 16, 2025
We're so sorry you had such a frustrating experience with the app, and we'll get your feedback to our team to help improve these issues and make a better app. We hope you check in on our progress and plans at blog.thunderbird.net and we hope as we improve you consider trying us again!

What’s new

Thunderbird for Android version 10.1, based on K-9 Mail. Changes include:
- Attach all images when sharing from gallery, not just the last
- Show the full changelog when it contains special characters