Beta Notes

Thunderbird Desktop

Version 78.0beta | Released June 16, 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.

These release notes apply to Thunderbird version 78 beta 4 released June 29, 2020.

What’s New

new

Color customization of Folder Pane icons

1637668

new

Additional Enterprise policies

1622703

new

Calendar: Add event preview to ICS import dialog

1631902

What’s Changed

changed

OpenPGP support improvements

1638398 1638537 1639683 1641374

changed

Various Address Book improvements

1630184 1633294

changed

Dark mode improvements

1619725 1640390

changed

Use scalable icons throughout Thunderbird

1636238 1638863

changed

Account settings UI improvements

1628497

changed

MailExtensions: Handle message attachments in browser.compose functions

1613535

changed

Calendar: Location URLs are now clickable

1614972

What’s Fixed

fixed

Various fixes for recipient address entry

1602477 1636393 1640722

fixed

Fixed width font not working in Write window

1622231

fixed

Accessibility improvements

1637230 1637536

fixed

Attachment pane in message preview layout broke when toggled or resized

1636558

fixed

Access key Alt+M for the attachment pane of the Write window not working correctly

1625263

fixed

Addons could not be removed

1629459

New, Changed, and Fixed in Beta 2

What’s New

new

MailExtensions: browser.identity API enabled

1644000

new

MailExtensions: Event fired when the user changes compose identity

1642189

What’s Changed

changed

Improvements to the location bar of a tab displaying web pages

1644689

changed

Several improvements to vCard parsing

1639496 1643262

changed

Various look and feel improvements

1514863 1643159 1644730 1644798 1645094 1645687 1645700

What’s Fixed

fixed

Print-progress dialog was disabled

1625299

fixed

"Clear Recent History" window did nothing

1639415

fixed

"Initially Show Attachment Pane" option was not working for Write window

1634946

fixed

Links in the Account Central content tab opened in Thunderbird as well as the browser

1645271

fixed

Order of columns in the thread pane was not persisted correctly

1612055

fixed

URLs in the message header display were not reachable via keyboard

1589863

fixed

Calendar: URLs in the event reminder dialog were not clickable

1644990

fixed

MailExtensions: Extension popup windows opened in a copy of the main window

1644083

New and Fixed in Beta 3

What’s New

new

Preference to disable OpenPGP functionality

1645914

new

MailExtensions: UI components for browser pages added

1645945

What’s Fixed

fixed

OpenPGP support did not work on some Linux distributions when using the official builds

1634209

fixed

Thunderbird 78 did not run on Red Hat Linux 7

1643258 1646993

fixed

Anomalies appeared when inserting an image into the compose window

1636971

fixed

Chat: Copying from chat conversations not working

1611442

New, Changed, and Fixed in Beta 4

What’s New

new

Chat: Direct message support for Matrix

1348064

What’s Changed

changed

OpenPGP improvements

1638645 1642795 1646367 1647671 1648957 1648978

changed

Various look and feel improvements

1647471 1647479 1648170

What’s Fixed

fixed

Addresses added to address book were not inserted into sorted order

1639750

fixed

Address book migration not working under certain circumstances

1647249

fixed

Chat: Own messages not displayed in private chats when server supports "echo-message"

1646049

fixed

MailExtensions: Tab was not defined in browser.menus.onClicked callback on out-of-window messages

1644487

fixed

MailExtensions: Select elements in action popups closed the window unexpectedly

1627197

Known Issues

unresolved

Preferences search not available

1573678

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