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Join UsVersion 80.0beta, first offered to channel users on August 3, 2020
OpenPGP support is now feature complete. Improvements: new Key Wizard, online searching for OpenPGP keys, and more
"Master Password" renamed to "Primary Password"
Twitter search removed
Building OpenPGP shared library linked to system libraries now supported
MailExtension errors now shown in Developer Tools console by default
IMAP server capabilities were not rechecked after upgrading to SSL/TLS connection
Advanced IMAP server preferences not saved in Account Manager
Message preview was sometimes blank after upgrading from Thunderbird 68
Address Book UI improvements
Drag and drop of address book contacts did not work in some situations
Email addresses whitelisted for remote content not displayed in preferences
Building OpenPGP shared library linked to system libraries now supported
MailExtensions: Dynamic registration of calendar providers now supported
OpenPGP bug fixes and improvements
Address book migration failed when there was a dot in the file name
Address book: "Always prefer display name over message header" was always checked when editing a contact
Printing did not always work
"Select All" (Ctrl+A) in message source did not work until focused with a mouse click
Ctrl+scroll wheel not zooming in message reader
Chat did not display messages
Setting/changing a signature from a file lost when closing account settings
Message filter dialog fixes: Missing scrollbar, drop-down list not wide enough
Various UX and theme improvements
OpenPGP Key generation now disabled when there is no default mail account configured
MailExtensions: Some APIs now use defineLazyPreferenceGetter in order to benefit from caching
OpenPGP Key Manager search function did not work
OpenPGP Key Properties dialog was sometimes too small
Address book performance optimizations
OpenPGP: Encrypted email would not send if address contained uppercase characters
OpenPGP: "Key ID" column could not be resized in Key Manage
Message Composer: Order of attachments could not be modified using drag & drop
Address Book: Migration did not preserve names of address books used in filters
OpenPGP: Encrypted messages are now signed automatically
Calendar: Event summary dialog is now themeable
OpenPGP: Keys containing invalid UTF-8 strings could not be imported
Dialog to add a new mail account from "Account Settings" did not open
Composing messages with a "fixed width" font did not work
Thunderbird may become unresponsive when sorting large IMAP folders
MailExtensions: Content scripts in mail editor do not work