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

Thunderbird (64-bit)

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Thunderbird 78.7.0 (64-bit)

  -  49.1 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 78.7.0 (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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Download Thunderbird 78.7.0 (64-bit)

  • Thunderbird 78.7.0 (64-bit) Screenshots

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    Thunderbird 78.7.0 (64-bit) Screenshot 1
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What's new in this version:

New:
- Extension API: Compose API now supports editing messages and templates as new messages
- Extension API: composeHtml is now exposed in MailIdentity
- Extension API: windows.update and windows.create now support titlePreface
- Extension API: new Accounts API functions: accounts.getDefault() and accounts.getDefaultIdentity(accountId)

Changes:
- Extension API: body and plainTextBody are now used as compose mode selectors in setComposeDetails and begin* functions in Compose API
- Theme: removed the double border around the task description field on the Tasks tab

Fixed:
- Account Manager: When deleting the last remaining account, the default account was not getting cleared and still pointed to the no-longer-existing account
- OpenPGP: Verification of an inline signed message would fail if it contained leading whitespace
- OpenPGP: Various other minor bug and stability fixes
- Mail Window: Quickfilter bar buttons disappear when hovered on Windows 10 High Contrast Black theme
- Theme: folder properties dialog contained black text on a black background in dark mode
- Theme: recipient pills in compose window were not visible in high contrast dark theme on Windows 10
- Extension API: browserAction buttons were not restored after restart if they were moved outside the default toolbar
- Extension API: browser.compose.beginNew could not override identity plaintext setting
- Extension API: browser.compose.beginForward was ignoring ComposeDetails
- Extension API: browser.compose.setComposeDetails did not properly handle Windows-style line endings

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