Thunderbird Beta for Testers

thunderbird

Thunderbird Beta for Testers is an open-source (Apache-2.0) Android app by thunderbird. The APK we host is 34 MB, it needs Android 6.0 or newer, and it declares 16 permissions.

The file on this page is Thunderbird Beta for Testers 25.0b2, 34.41 MB, and it installs on Android 6.0 and newer.

We compared the signing certificate of this build with the certificate recorded the first time net.thunderbird.android.beta entered the site, and published both the file's SHA-256 and the certificate's fingerprint above so you can check the download yourself. That comparison says the file was not repackaged by someone else; it is not a review of what the app does.

The manifest inside the APK declares 16 permissions, including access to the camera and your contacts. Android asks you to approve those the first time the app needs them.

Its licence is Apache-2.0. We took this build from F-Droid, and the source for this exact version is linked below.

We do not show a star rating or an install count for this page: we have no measured figure for either, and a number we cannot source is worth less than an empty field.

Download APK · 34.41 MB

Version: 25.0b2
Size: 34.41 MB
Requires Android: API 23
Package: net.thunderbird.android.beta
Signature checked on: Oct 26, 2026
Where this file came from: F-Droid
Licence: Apache-2.0
Source code: Source for this version

File SHA-256: ce0ebae62326d15e8be0c8904ad352cca89f9e154568bbffad94f8d776aad723

Signing certificate (SHA-256): 056bfafb450249502fd9226228704c2529e1b822da06760d47a85c9557741fbd

We check that this file carries the same signing certificate as earlier releases of the same package. That shows the APK was not repackaged by someone else — it is not a security review of the app.