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

Thunderbird for Mac

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Thunderbird 78.6.1

  -  66.4 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 78.6.1.


For those interested in downloading the most recent release of Thunderbird for Mac 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 78.6.1

  • Thunderbird 78.6.1 Screenshots

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    Thunderbird 78.6.1 Screenshot 1
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  • Thunderbird 78.6.1 Screenshot 5

What's new in this version:

Changes:
- MailExtensions: browserAction, composeAction, and messageDisplayAction toolbar buttons now support label and default_label properties

Fixed:
- Running a quicksearch that returned no results did not offer to re-run as a global search
- Message search toolbar fixes
- Very long subject lines distorted the message compose and display windows, making them unusable
- Compose window: Recipient addresses that had not yet been autocompleted were lost when clicking Send button
- Compose window: New message is no longer marked as "changed" just from tabbing out of the recipient field without editing anything
- Account autodiscover fixes when using MS Exchange servers
- LDAP address book stability fix
- Messages with invalid vcard attachments were not marked as read when viewed in the preview window
- Chat: Could not add TLS certificate exceptions for XMPP connections
- Calendar: System timezone was not always properly detected
- Calendar: Descriptions were sometimes blank when editing a single occurrence of a repeating event
- Various printing bugfixes
- Visual consistency and theme improvements
- Various security fixes

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