Thunderbird: Free Your Inbox

In-app purchases
3.5
4.33K reviews
500K+
Downloads
Content rating
Parental guidance
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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
May 9, 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

3.5
4.08K reviews
Steve B
March 17, 2025
Having just converted my desktop to Thunderbird to replace the awful 'new outlook', I installed the T-bird mobile app on my Android. Using the QR was seamless and a really great feature and I like the interface and range of options. Sadly, that's where my praise ends because it won't sync or push emails. Even when I can see an email on my desktop there's nothing on my phone, no notification on the screen or app icon. Even manually refreshing the inbox several times doesn't work = disappointing.
46 people found this review helpful
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Mozilla Thunderbird
March 18, 2025
Thanks for trying us and we're sorry for any frustration setting up push notifications. These are enabled by folder, and for directions, you can go to Settings > Misc > Get Help > Settings and read the article 'Configure push email...' We hope this helps get push notifications working on your phone!
AJ
June 1, 2025
Since it released I have struggled getting this app to notify me of new emails, to this day it still doesn't, it has DND access, unrestricted data access, no battery restraints, and more, yet still it's the only email client I have used that will just not send me any notification for new emails unless I manually open the app, then I get them.
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Mozilla Thunderbird
June 4, 2025
We're so sorry for any trouble with notifications! We are working to make notifications better and easier to troubleshoot. Please check the article at Settings > Get Help > Settings > "Configure push" and if this does not help, open a support question in 'Ask a Question' on the right side of the page so we can understand what's happening.
David Bain
May 8, 2025
Thank goodness the Thunderbird folks have developed an email app! I was a desktop user years ago and recently came back to using that. I was so sick of Gmail and have no interest in Outlook so this is a breath of fresh air. Well done to all concerned. I've just installed it so I may update this review after a while but for the moment, Thunderbird is my main email app. I've disabled Gmail (unfortunately can't seem to uninstall it, which in itself speaks volumes).
6 people found this review helpful
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What’s new

Thunderbird for Android version 10.0, based on K-9 Mail. Changes include:
- Server field pre-filled in manual account setup
- Add a menu entry to empty the Spam folder
- Update Gmail OAuth client IDs to Thunderbird for Android
- Preserve the <s> tag when sanitizing HTML content
- Messages and star counts in the drawer update instantly
- Hide accounts setting now remembered across restarts
- Restart PushService after app update