Thunderbird: Free Your Inbox

3.7
9K reviews
Content rating
Rated for 12+
1M+
Downloads
Content rating
Rated for 12+
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.

Updated on
Jul 7, 2026

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

3.7
8.42K reviews
Oscar Murakami-Smith
November 9, 2024
Really on board for this app! I've had so many issues with so many apps but I think I might finally be able to settle. Only one bit of feedback I'd really liked implemented—RTF or html signatures! I want my signature to be the same as it is on my desktop, where I've gone to the trouble of making a nice html signature but no matter how hard I try (including importing settings from TB desktop, pasting from existing formatted text) this app de-formats my signature to pure text with no formatting.
106 people found this review helpful
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Fahim Shah
July 2, 2026
Search options in the app are limited, in fact you can only search by a keyword. It would help if the developers could add basic parameters like From, To, Between Dates, Subject Contains etc. Apart from that the app offers a unified inbox view but lacks other unified folders (Draft, Sent, Junk, Trash etc). Having these in the unified menu helps. Overall design and UI is clean. There are no ads and the sync operation is also quick.
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Mozilla Thunderbird
July 2, 2026
Thanks for your review, and your ideas for improving search and unified folders. While we don't know if or when this will be coming to the app, you can also show support for it by suggesting it or voting for existing ideas at connect.mozilla.org, our official feedback site. Thanks!
Michael Burns
July 4, 2026
Desktop version is great and I have used it since inception. The Android app is just a warmed over k9 mail, and still has all of k9's deficiencies. Two glaring ones are no support for filtering messages (for example to automatically sort incoming mail) and the other, related one, is no autoresponder support. The desktop version has excellent filteration and the filters can be used to set up autoresponses based on details of the message. A curious failure.
1 person found this review helpful
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Mozilla Thunderbird
July 7, 2026
Unfortunately the Android app doesn't support filters yet. This could be something we add in the future, though we don't know when. For now, please upvote and support requests for filters at connect.mozilla.org

What’s new

Thunderbird version 20.0

New:
- Enable easily discoverable way to configure and use Thundermail

Changed:
- Only show message notification config actions above the cutoff

Fixed:
- Account drawer stayed open after account switch despite auto-select Inbox setting
- Imported settings could incorrectly show 'XX' avatar monogram
- Printed emails omitted message headers and used minimal margins
- Compose button did not work in tablet split-screen message view
Content rating
Rated for 12+
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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