A free email application from Mozilla that's easy to set up and customize

Thunderbird (64-bit)

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Thunderbird 78.11.0 (64-bit)

  -  49.3 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of Thunderbird 78.11.0 (64-bit).


For those interested in downloading the most recent release of Thunderbird (64-bit) or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


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If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download Thunderbird 78.11.0 (64-bit)

  • Thunderbird 78.11.0 (64-bit) Screenshots

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    Thunderbird 78.11.0 (64-bit) Screenshot 1
  • Thunderbird 78.11.0 (64-bit) Screenshot 2

What's new in this version:

Fixed:
- OpenPGP could not be disabled for an account if a key was previously configured
- Recipients were unable to decrypt some messages when the sender had changed the message encryption from OpenPGP to S/MIME
- Contacts moved between CardDAV address books were not synced to the new server
- CardDAV compatibility fixes for Google Contacts
- Folder pane had no clear indication of focus on macOS
- Windows theme improvements
- Various security fixes

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