About Thunderbird for Android

Thunderbird for Android (TfA) is a powerful, privacy‑focused email app for managing multiple accounts with ease — including a Unified Inbox for maximum productivity. It’s open source, built with the community, and never treats your private data as a product.

This page is for both users and contributors:

• If you want to use Thunderbird for Android, see Download.
• If you want to contribute, jump to Contributing.

📥 Download

You can get Thunderbird for Android from multiple sources:

• Google Play
• F-Droid
• Beta (early access) on Google Play
• Beta on F-Droid
• GitHub Releases

Check the Release Notes to see what’s new in each version.

✨ Highlights

• Unified Inbox and multiple account support
• Open source, privacy‑respecting by design
• Modern, fast UI with helpful features like powerful search and rich composer
• Actively developed with regular updates

📨 K‑9 Mail heritage

Thunderbird for Android is based on K‑9 Mail, a long‑standing open source email app. The projects share much of the same code and therefore may look and feel similar.

Some features are selectively enabled in Thunderbird when they are a better fit for Thunderbird users (e.g., import from K‑9).

If you prefer to keep using K‑9 Mail, you can find it here:

• Google Play
• F‑Droid

❓ Need help or have feedback?

• Knowledge base
• FAQ
• Support forum
• Bug tracker
• Ideas & voting

Community chat (Matrix):

• General
• Development
• Thunderbird community space

🤝 Contributing

We welcome contributions of all kinds:

• Development: Contributing Guide if you want to help with code
• Translations: Weblate Project if you want to help localize the app
• Other ways to help
• Participation guidelines