Thunderbird: Free Your Inbox

In-app purchases
9.93K reviews
Content rating
Parental guidance
1M+
Downloads
Content rating
Parental guidance
Parental Guidance Recommended
Users Interact, In-App Purchases
Learn more
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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.

Thunderbird is a 100% open source, privacy focused email app.
Updated on
Sep 22, 2026
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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

9.29K reviews
Neil Barnett
September 3, 2026
Good app, lots of features that I haven't found out how to use, yet. .. I shouldn't moan about a decent free app, but when I imported from the desktop app (one simple QR code, brilliant), I got my folders, but empty. The emails were all in one inbox. It doesn't matter to me, because I'm closing down that email, it was just a surprise.
4 people found this review helpful
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Bally
April 27, 2026
Would love to give the app 5 stars but a recent update has pushed a new flow for deleting emails via the notifications tray, requiring that I constantly confirm that I want to delete that email, I have no way of being able to turn it off and it's just super annoying, used to be able to delete a bunch of emails just from the notifications tray, now I have to open the app. Please add an option under notifications to rectify this Mozilla team 🙏
9 people found this review helpful
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Mozilla Thunderbird
April 28, 2026
We understand that the change in tray functionality can be frustrating! While we don't know if or when this will be changed or reverted, you can support that idea by suggesting or voting for ideas at connect.mozilla.org, our official feedback site.
Christopher
December 11, 2024
Looks great and is stable. However, the search function is terrible, often ending in a blank result. There also appears to be an issue with some emails not showing. Right now, I need to have Outlook running, too, in order to be able to search and check for missing mail. There is no direct support within the app either. You need to signup to a support forum for this, very 2000s!
17 people found this review helpful
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Mozilla Thunderbird
December 11, 2024
Thanks for the review and feedback, and in-app support is a solid suggestion for a future feature. The search issues and emails not appearing sound like a bug - would you mind reporting those at https://github.com/thunderbird/thunderbird-android/issues ? Our team and community can help figure out what's going on there!

What’s new

Thunderbird version 23.1

Fixed:
- Attachment filenames with non-ASCII characters were incorrectly decoded and saved
Content rating
Parental guidance
Parental Guidance Recommended
Users Interact, In-App Purchases
Learn more

App support

About the developer
MZLA TECHNOLOGIES CORPORATION
mobile-appstore-admin@thunderbird.net
447 Sutter St San Francisco, CA 94108-4601 United States
+1 650-910-8704

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