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Thunderbird Beta for Testers 14.0b2

By Mozilla Thunderbird • February 26, 2026
Communication arm64-v8a, armeabi-v7a, x86, x86_64 Native (Java/Kotlin) 12.38 MB
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File Information

Package Namenet.thunderbird.android.beta
Version Name14.0b2
Version Code33
Architecturearm64-v8a, armeabi-v7a, x86, x86_64
Min Android VersionAndroid 21 (API 35)
Main Activitycom.fsck.k9.activity.MessageList
FrameworkNative (Java/Kotlin)
File Size12.38 MB
Signature (SHA1)A17411F1092CA647500A8B6F0297E205088F4015
File Hash (SHA256)a8f651512ccae153e195baaea32ed003304546007311d1e517cbf8e5f2035471

What's New

Thunderbird for Android version 14.0b2, based on K-9 Mail. Changes include:
- Messages could not be fetched in 14.0b1

App 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.

What you can do

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.
Download Thunderbird Beta for Testers APK

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APK Permissions 16

  • android.permission.ACCESS_NETWORK_STATE
  • android.permission.CAMERA
  • android.permission.FOREGROUND_SERVICE
  • android.permission.FOREGROUND_SERVICE_DATA_SYNC
  • android.permission.FOREGROUND_SERVICE_SPECIAL_USE
  • android.permission.INTERNET
  • android.permission.POST_NOTIFICATIONS
  • android.permission.READ_CONTACTS
  • android.permission.READ_SYNC_SETTINGS
  • android.permission.RECEIVE_BOOT_COMPLETED
  • android.permission.SCHEDULE_EXACT_ALARM
  • android.permission.USE_BIOMETRIC
  • android.permission.USE_FINGERPRINT
  • android.permission.VIBRATE
  • android.permission.WAKE_LOCK
  • net.thunderbird.android.beta.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
APK Verified

The cryptographic signature guarantees that the file is safe to install and was not tampered with in any way.

Other Variants

This release has multiple variants (e.g. diff architectures).

Universal
Developer

Name: Mozilla Thunderbird

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