Thunderbird: Free Your Inbox

In-app purchases
10.4K 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.

Thunderbird is a 100% open source, privacy focused email app.
Updated on
Nov 11, 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

9.75K reviews
Korvin Silver
November 4, 2026
Won't download the vast majority of my emails through IMAP, not even with no limits on size, age, and how many to download, and it happens with random messages, be it 2 years or 2 days old, seemingly randomly. I can search for them on the server if I know what I'm looking for but they're not in the inbox in this app. Happens with multiple email providers. No such issue on Desktop. The way it stands, this is unreliable
6 people found this review helpful
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Mozilla Thunderbird
November 5, 2026
We're sorry for the unreliability! Missing random IMAP messages often points to a corrupted local index. In Settings > [Account] > Folders, tap Inbox and select 'Clear local messages' to force a re-sync. If this persists, please use Settings > Get Help to open a support question with details so we can investigate!
Richard Manley
November 7, 2026
Well I tried! I've been using Thunderbird for about a week now. The notifications for new mail is terrible. Yes, the notifications on the phone settings are turned on, adjustments through the app have been adjusted. I don't see a push type setting only fetch so you need to open the app, pull down on the screen to refresh. I do like the app but not getting your mail in a timely matter puts this as a big NO! Sorry...
6 people found this review helpful
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O Daetsemoh
November 7, 2026
This mobile version is a disaster. I am notified about new emails hours after I receive them, if I receive them at all. I have too often had to start a sync manually. But even then, when new emails are fetched, there are no notifications. And no, I do not want to manually change settings here and there to enable something that should be enabled by default. This app is an utter disappointment..
2 people found this review helpful
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What’s new

Thunderbird version 24.0

New:
- Signatures support HTML
- Reply offers Reply or Reply All

Changed:
- Long account names fit in two lines

Fixed:
- Compose selection invisible in light theme
- Status icons unreadable when selecting messages
- Recipient expander failed to collapse after edit
- Camera attachments could crash the app
- Save All saved each attachment with same file content
- HTML signatures could disappear after rotation
- Edit as new used wrong identity for queued mail