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Join UsVersion 76.0beta, first offered to channel users on April 9, 2020
New Account Hub for centralized account setup
Minimize to tray support added for Windows
New config option to anonymize message date header
MailExtensions: Add API for managing identities
Thunderbird will now ask for OS account password before displaying saved passwords
Addons page UI refreshed
MailExtensions: Allow experiments to use address book cache
Calendar: Lightning version removed from Thunderbird user agent string
Email addresses sometimes displayed incorrectly in message composer
Address book improvements: exporting, editing contacts, contact photos
Dark theme fixes: message composer, address book, calendar
Various accessibility fixes: message composer, account setup, attachment pane
Mailbox format conversion fixes
Mailbox quotas not displayed correctly
Chat: Add OTR Fingerprint menu was incorrectly shown for IRC channels
Chat: Renaming contacts in context menu did not work
Calendar: Task and event dialogs were sometimes too small for their content
Calendar: Rotated day and week views not displayed correctly
Preferences: "Files & Attachments" column headers did not align with content
Accessibility: Screen readers were reporting too many activities from the status bar
Chat: Multiple OTR system messages were collapsed, resulting in missed notifications
Removed "Run in Private Windows" section from Addons page
Messages were sometimes sent with a badly formed address when filled from the addressbook
MailExtensions: Setting IMAP messages as read with browser.messages.updated failed to persist
MailExtensions: Multiple extensions using compose.onBeforeSend could send an email prematurely
Print progress dialog is disabled.
Message composer not using correct fonts