Premium
What's new in Thunderbird Beta for Testers (f-droid version) 11.0
- Improve dark mode emails
- Welcome screen layout improved
- Improved compatibility with some ISPs
- Selection now shown by adjusting color priority
- Folder settings now use switches instead of checkboxes
- Messages now marked read by default when archiving
- Font size config preference removed in favor of OS and density settings
- Avoid crashes in various scenarios
About Thunderbird Beta for Testers (f-droid version) 11.0
Premium
Features
* Supports multiple accounts
* Unified Inbox
* Privacy-friendly (no tracking whatsoever, only connects to your email provider)
* Automatic background synchronization or push notifications
* Local and server-side search
* OpenPGP email encryption (PGP/MIME)
Install the app OpenKeychain: Easy PGP to encrypt/decrypt your emails using OpenPGP.
Support
If you're having trouble with K-9 Mail, ask for help in our support forum.
Want to help?
K-9 Mail is a community developed project. If you're interested in helping to improve the app, please join us!
You can 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.
Download Thunderbird Beta for Testers (f-droid version) 11.0
This release may come in several variants. Consult our handy FAQ to see which download is right for you.
Version:11.0
Uploaded:July 16, 2025 at 5:42AM UTC
File size:11.43 MB
Downloads:69
Version:21.0
Uploaded:July 21, 2026 at 2:21PM UTC
File size:10.67 MB
Version:21.1
Uploaded:August 5, 2026 at 10:55AM UTC
File size:10.19 MB
Downloads:4
Version:21.0
Uploaded:July 23, 2026 at 6:28PM UTC
File size:10.19 MB
Downloads:5
Version:20.1
Uploaded:July 9, 2026 at 10:32AM UTC
File size:10.11 MB
Downloads:9
Version:20.0
Uploaded:June 24, 2026 at 1:10PM UTC
File size:10.11 MB
Downloads:12
Version:19.2
Uploaded:June 6, 2026 at 9:31AM UTC
File size:10.09 MB
Downloads:19
Version:19.1
Uploaded:June 5, 2026 at 2:19PM UTC
File size:9.57 MB
Downloads:2
Version:19.0
Uploaded:May 29, 2026 at 3:19PM UTC
File size:9.57 MB
Downloads:6
Version:18.0
Uploaded:April 17, 2026 at 5:46PM UTC
File size:9.48 MB
Downloads:6
Version:17.0
Uploaded:March 20, 2026 at 8:52PM UTC
File size:13.38 MB
Downloads:11
Version:16.1
Uploaded:March 3, 2026 at 10:56PM UTC
File size:12.76 MB
Downloads:14
Follow APK Mirror
