Thunderbird: Free Your Inbox

Name: Thunderbird: Free Your Inbox
Availability: InStock
Rating: 4.559999942779541 (9928 reviews)
Author: Mozilla Thunderbird

Mozilla Thunderbird

In-app purchases

9.93K reviews

Rated for 12+

1M+

Downloads

Rated for 12+

Parental Guidance Recommended

Users Interact, In-App Purchases

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About this app

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.

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

Updated on

Sep 22, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.

No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Personal info, Messages and 7 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

9.28K reviews

Oscar Murakami-Smith

November 9, 2024

Really on board for this app! I've had so many issues with so many apps but I think I might finally be able to settle. Only one bit of feedback I'd really liked implemented—RTF or html signatures! I want my signature to be the same as it is on my desktop, where I've gone to the trouble of making a nice html signature but no matter how hard I try (including importing settings from TB desktop, pasting from existing formatted text) this app de-formats my signature to pure text with no formatting.

125 people found this review helpful

Kylo

September 12, 2026

I'm loving this app. I love the unified inbox but I would also like the option to have everything unified; sent, junk, etc. Another thing I don't like is I can't seem to get my emails instantly. I have it set to the most frequent option possible (every 15 minutes) but I seem to always have to manually refresh my inbox when I'm waiting for something. ALSO the search function doesn't find as many relevant emails as other apps do, so I have to switch apps to find emails I'm looking for.

16 people found this review helpful

Ellie Kennard

September 15, 2026

There seems to be a bug in the app where JPG attachments have a .txt extension added. This gives something like photo.jpg.txt which file is not able to be viewed, obviously until it's downloaded and the .txt extension is removed by the user. It seems to be applied when the option to either download or view the file is chosen. That same file on the email on Windows Thunderbird does not have this problem, and if that email is forwarded to something like gmail, the attachment is normal.

2 people found this review helpful

Mozilla Thunderbird

September 15, 2026

Thanks so much for reporting this, and we very much want to investigate this issue with JPG attachments further. Can you please open a bug report with any useful information at github.com/thunderbird/thunderbird-android/issues for our bug triage volunteers and developers? Thanks!