Thunderbird: Free Your Inbox

In-app purchases
3.8
3.79K reviews
500K+
Downloads
Content rating
Everyone
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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
Mar 13, 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

3.7
3.57K 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!
137 people found this review helpful
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Jenn's Bowtique
April 13, 2025
New issue w/ emails not downloading. Noticed a couple weeks ago but it is becoming more frequent. Sometimes it's 24 hrs before an email will come through in app that does come through on desktop. When out and relying on phone this is a big problem, especially w/ 2FA. Addl ssue w/ unified inbox not showing email from all accounts. Sent an email to support and received a response that they can't respond to emails. Useless.
5 people found this review helpful
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Mozilla Thunderbird
April 15, 2025
We're so sorry this is happening, and while we're working on improving sync, this isn't the experience we want you to have. And we can help you on our official support site, which you can get to via Settings > Get Help. You can open a question with details like your providers, and we can help troubleshoot it there.
Descending Angel
March 21, 2025
UI is nice & clean, push notifications work like it's supposed to, but polling doesn't work at all. No matter what interval I set for the app to go out & get mail it won't do it unless I manually refresh the app. This really needs to be fixed because I don't need the app to constantly be checking for mail, just every 30 minutes or so. Having push on all the time is eating away at battery life.
5 people found this review helpful
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Mozilla Thunderbird
March 21, 2025
We're so sorry you've been having issues with lack of notifications when polling. Improving notifications is one of our highest priorities for this year, and you can follow our development news and updates on our progress at blog.thunderbird.net. You can also open a support question for this at Settings > Get Help with details for our support crew.

What’s new

Thunderbird for Android version 9.0, based on K-9 Mail. Changes include:
- Basic support for Android 15
- Add a link to the support article when signing in with Google
- Account setup attempts email provider's autoconfig first, then falls back to ISPDB
- Updated translations for multiple languages
- The changelog now properly displays release versions
- A wrong translation of the app name has been fixed
- Dependencies have been updated to fix a couple of bugs