Beta Notes

Thunderbird Desktop

Version 72.0beta | Released December 4, 2019

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

These release notes apply to Thunderbird version 72 beta 3 released January 3rd, 2020.

What’s New

new

Themes can be previewed in the Add-On Manager

What’s Fixed

fixed

Icons displaying encrypted and signed emails looked vertically stretched

fixed

WebExtension toolbar icons were displayed too small

fixed

Folder tree and address book tree lacked vibrancy in Mac OS X

Fixed in Beta 2

What’s Fixed

fixed

Searching LDAP address book crashed in some circumstances

fixed

Message navigation with backward and forward buttons did not work in some circumstances

fixed

Calendar: Last day of long-running events was not shown

fixed

Calendar: Event attendee dialog was not displayed correctly

fixed

Calendar: Tasks due today were not listed in bold

Changed and Fixed in Beta 3

What’s Changed

changed

Various improvements when setting up an account for a Microsoft Exchange server: Now offers IMAP/SMTP if available, better detection for Office 365 accounts; re-run configuration after password change.

What’s Fixed

fixed

After changing view layout, the message display pane showed garbled content under some circumstances

fixed

Certificate Manager not working

fixed

Various theme changes to achieve "pixel perfection": Unread icon, "no results" icon, paragraph format and font selector, background of folder summary tooltip

fixed

Chat: For XMPP accounts, no user icons were shown for users with avatar

fixed

Chat: Contact and conversation context menus not working

Known Issues

unresolved

Calendar: Lightning not updating to corresponding 72.0b3 version. Workaround: Set preference extensions.lastAppVersion to a value of 71.0 to force a refresh. Check version number in the Add-on Manager afterwards.

unresolved

Opening the properties of a folder may hang on Mac

unresolved

WebExtension toolbar button badges not displayed

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