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

Thunderbird (64-bit)

Thunderbird 78.9.0 (64-bit)

  -  49.2 MB  -  Open Source

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 78.9.0 (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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  • Thunderbird 78.9.0 (64-bit) Screenshots

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    Thunderbird 78.9.0 (64-bit) Screenshot 1
  • Thunderbird 78.9.0 (64-bit) Screenshot 2

What's new in this version:

Fixed:
- New mail notification displayed old messages that were unread
- Spaces following soft line breaks in messages using quoted-printable and format=flowed were incorrectly encoded; existing messages which were previously incorrectly encoded may now display with some words not separated by a space
- Some fields were unreadable in the Dark theme in the General preferences panel
- Sending a message containing an anchor tag with an invalid data URI failed
- When switching tabs, input focus was not moved to the new tab
- Address Book: Syncing a read-only Google address book via CardDAV failed
- Address Book: Importing VCards with non-ascii characters would fail
- Address Book: Some values may not have been parsed when syncing from Google address books.
- Add-ons Manager did not show if an addon used experiment APIs
- Calendar: Removing a recurring task was not possible
- Various security fixes