thunderbird-android

Overview

This repository tells a small merger story worth knowing: K-9 Mail, one of Android's oldest and most trusted open source email clients, joined the Thunderbird family in 2022 and became the foundation for Mozilla's official Thunderbird for Android app. Both apps now ship from the exact same codebase, with feature flags separating what's branded Thunderbird versus what stays K-9.

If you'd rather keep the original robot-dog identity, K-9 Mail is still built and released from this same repo — it's not being discontinued, just folded into a shared, better-resourced development effort.

Key topics

• android
• email
• k9mail
• thunderbird

Getting started

Installation steps vary depending on how a project is packaged, so the most reliable source is always the official README. As a starting point:

Open the official repository ↗

How it compares

Here is how this project sits alongside a few other tools in the same category:

• signal-android★ 42.5k · Kotlin, Java
• client★ 4.2k · Kotlin, Java
• openboard★ 3.8k · Java, C++, Kotlin and other

Questions about this project

What is thunderbird-android?

This repository tells a small merger story worth knowing: K-9 Mail, one of Android's oldest and most trusted open source email clients, joined the Thunderbird family in 2022 and became the foundation for Mozilla's official Thunderbird for Android app. Both apps now ship from the exact same codebase, with feature flags separating what's branded Thunderbird versus what stays K-9.

What license does thunderbird-android use?

Apache-2.0 License

How popular is thunderbird-android on GitHub?

thunderbird-android has roughly 13.7k stars and 2.8k forks on GitHub as of the latest data.

Is thunderbird-android actively maintained?

This repository has been updated recently, which is generally a good sign of active maintenance.

What language is thunderbird-android written in?

thunderbird-android is written primarily in Kotlin.

Repository info