Release Notes

Thunderbird Desktop

Version 78.2.0 | Released August 25, 2020

Check out the notes below for this version of Thunderbird. As always, you’re encouraged to tell us what you think, ask for help, or file a bug in Bugzilla.

** Thunderbird version 78.2.0 is only offered as direct download from thunderbird.net and not as an upgrade from Thunderbird version 68 or earlier.** A future release will provide updates from earlier versions. Automatic updates are available for users already running version 78.0 or higher.

Add-on support: As of version 78.0, Thunderbird only supports MailExtensions. Your favorite add-ons may not have been updated for compatibility.

At this time, users of the Enigmail Add-on should not update to Thunderbird 78.

Originally it was announced to enable OpenPGP by default in version 78.2.0. It has been decided to slightly postpone this for final changes and testing by volunteers. See the wiki for how to enable and help with testing.

System Requirements: Details

  • Windows: Windows 7 or later
  • Mac: macOS 10.9 or later
  • Linux: GTK+ 3.14 or higher

What’s Changed

changed

OpenPGP Key generation now disabled when there is no default mail account configured

changed

OpenPGP: Encrypt saved drafts when OpenPGP is enabled

changed

Twitter search removed

changed

Calendar: Event summary dialog is now themeable

changed

MailExtensions: Some APIs now use defineLazyPreferenceGetter in order to benefit from caching

What’s Fixed

fixed

OpenPGP Key Manager search function did not work

fixed

OpenPGP Key Properties dialog was sometimes too small

fixed

OpenPGP: Encrypted email would not send if address contained uppercase characters

fixed

OpenPGP: "Key ID" column could not be resized in Key Manage

fixed

OpenPGP: Keys containing invalid UTF-8 strings could not be imported

fixed

OpenPGP: Enable automatic signing for encrypted messages in additional scenarios

fixed

Many more OpenPGP bug fixes and improvements

fixed

IMAP fetch chunk size was always 65536 bytes

fixed

IMAP server capabilities were not rechecked after upgrading to SSL/TLS connection

fixed

Message Composer: Order of attachments could not be modified using drag & drop

fixed

Composing messages with a "fixed width" font did not work

fixed

Drag and drop of address book contacts did not work in some situations

fixed

Address book migration failed when there was a dot in the file name

fixed

Address book: "Always prefer display name over message header" was always checked when editing a contact

fixed

Address book performance optimizations

fixed

Dialog to add a new mail account from "Account Settings" did not open

fixed

"Select All" (Ctrl+A) in message source did not work until focused with a mouse click

fixed

Ctrl+scroll wheel not zooming in message reader

fixed

Setting/changing a signature from a file lost when closing account settings

fixed

Adaptive Junk Mail settings could not be disabled

fixed

Message filter dialog fixes: Missing scrollbar, drop-down list not wide enough

fixed

Various UX and theme improvements

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