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Thunderbird Beta for Testers

Thunderbird is a 100% open source, privacy focused email app.

License
Apache-2.0
Package
net.thunderbird.android.beta
Category
Connectivity, Email, Internet, Writing
Latest version
25.0b2 · Oct 25, 2026
Minimum Android
Android 6

Download 25.0b2

Screenshots

Thunderbird Beta for Testers screenshot 1 Thunderbird Beta for Testers screenshot 2 Thunderbird Beta for Testers screenshot 3 Thunderbird Beta for Testers screenshot 4 Thunderbird Beta for Testers screenshot 5 Thunderbird Beta for Testers screenshot 6 Thunderbird Beta for Testers screenshot 7 Thunderbird Beta for Testers screenshot 8

Description

Help make the next Thunderbird release as awesome as possible by downloading Thunderbird Beta and getting early access to the latest features and bug fixes before they're officially released. Your testing and feedback are important, so please report bugs, rough edges, and share your thoughts with us!

Find our bug tracker, source code, and wiki at https://github.com/thunderbird/thunderbird-android.

We’re always happy to welcome new developers, designers, documenters, translators, bug triagers and friends. Visit us at https://thunderbird.net/participate to get started.

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.

All versions

VersionReleasedMinimum AndroidSize
25.0b2 Oct 25, 2026 Android 6 34.4 MB
25.0b1 Oct 12, 2026 Android 6 34.4 MB
24.0b2 Sep 16, 2026 Android 6 32.4 MB
24.0b1 Sep 11, 2026 Android 6 32.4 MB
23.0b1 Aug 12, 2026 Android 6 32 MB
22.0b2 Jul 31, 2026 Android 6 31.9 MB
22.0b1 Jul 23, 2026 Android 6 31.9 MB
21.0b2 Jul 1, 2026 Android 6 10.3 MB
21.0b1 Jun 24, 2026 Android 6 10.3 MB
20.0b2 Jun 5, 2026 Android 6 10.2 MB
20.0b1 May 28, 2026 Android 6 10.2 MB
19.0b2 May 14, 2026 Android 6 10.2 MB
19.0b1 Apr 16, 2026 Android 6 10.2 MB
18.0b4 Apr 8, 2026 Android 6 10.1 MB
18.0b3 Apr 2, 2026 Android 6 10.1 MB
18.0b2 Mar 19, 2026 Android 6 10.1 MB
17.0b4 Mar 1, 2026 Android 6 13.9 MB
17.0b3 Mar 1, 2026 Android 6 13.9 MB
17.0b2 Feb 5, 2026 Android 6 13.9 MB
16.0b4 Jan 28, 2026 Android 5.0 13.1 MB
16.0b3 Dec 18, 2025 Android 5.0 13.1 MB
16.0b2 Dec 11, 2025 Android 5.0 13.1 MB
16.0b1 Dec 10, 2025 Android 5.0 13.1 MB
15.0b1 Nov 22, 2025 Android 5.0 13 MB
14.0b3 Nov 1, 2025 Android 5.0 12.4 MB
14.0b2 Oct 25, 2025 Android 5.0 12.4 MB
14.0b1 Oct 25, 2025 Android 5.0 12.4 MB
13.0b5 Oct 18, 2025 Android 5.0 11.8 MB
13.0b4 Oct 5, 2025 Android 5.0 11.8 MB
13.0b3 Sep 29, 2025 Android 5.0 11.8 MB
13.0b2 Sep 20, 2025 Android 5.0 11.8 MB
13.0b1 Sep 13, 2025 Android 5.0 11.8 MB
12.0b7 Aug 25, 2025 Android 5.0 11.7 MB
12.0b6 Aug 17, 2025 Android 5.0 11.7 MB
12.0b5 Aug 10, 2025 Android 5.0 11.7 MB
12.0b4 Aug 1, 2025 Android 5.0 11.7 MB
12.0b3 Jul 28, 2025 Android 5.0 11.7 MB
12.0b1 Jul 24, 2025 Android 5.0 11.7 MB
11.0b5 Jul 6, 2025 Android 5.0 11.5 MB
11.0b4 Jul 1, 2025 Android 5.0 11.5 MB
11.0b3 Jun 15, 2025 Android 5.0 11.5 MB
11.0b2 May 18, 2025 Android 5.0 11.5 MB
11.0b1 May 11, 2025 Android 5.0 11.4 MB
10.0b2 May 6, 2025 Android 5.0 10.5 MB
10.0b1 Mar 23, 2025 Android 5.0 10.5 MB
9.0b3 Dec 17, 2024 Android 5.0 10.4 MB
8.0b5 Nov 2, 2024 Android 5.0 10.3 MB
8.0b4 Nov 2, 2024 Android 5.0 10.4 MB
8.0b3 Nov 2, 2024 Android 5.0 10.5 MB

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