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

Thunderbird for Mac

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Thunderbird 78.8.1

  -  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 78.8.1.


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 78.8.1

  • Thunderbird 78.8.1 Screenshots

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    Thunderbird 78.8.1 Screenshot 1
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  • Thunderbird 78.8.1 Screenshot 5

What's new in this version:

Fixed:
- New mail notification did not occur for newly arrived messages if previously received mail was unread
- Directory for saving multiple attachments was not remembered between saves
- Opening a message from the command-line using "-mail " failed
- Automatic account setup did not use the provider email and display name
- Newly-added identities were not listed in the account manager until it was closed and reopened
- Account provisioner did not properly handle UTF-8 data
- Copying a large message to an IMAP server would sometimes prematurely display a time-out error
- OpenPGP: Various errors when importing keys
- OpenPGP: Public keys attached to an outgoing email did not have "Content-Description" set
- Address Book: CardDAV sync errors did not retry until Thunderbird was restarted
- Calendar: Changing the cache mode of a CalDAV calendar connection would lose the username of the account
- Calendar: Add-on calendars were sometimes not visible after restarting
- Calendar: The preview for a recurring task did not use all available space in the dialog window
- Installer: Option to keep distribution directory on upgrade did not work

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