Thunderbird 78.2.0

Thunderbird

Thunderbird is a free, open-source, cross-platform application for managing email and news feeds. It is a local (rather than a web-based) email application that is powerful yet easy-to-use. Thunderbird is developed, tested, translated and supported by the folks at Mozilla Corporation and by a group of dedicated volunteers. Thunderbird gives you control and ownership over your email. There are lots of add-ons available for Thunderbird that enable you to extend and customize your email experience.

Thunderbird gives you IMAP/POP support, a built-in RSS reader, support for HTML mail, powerful quick search, saved search folders, advanced message filtering, message grouping, labels, return receipts, smart address book LDAP address completion, import tools, and the ability to manage multiple e-mail and newsgroup accounts.

Changes in Thunderbird 78.2.0:

OpenPGP Key generation now disabled when there is no default mail account configured
OpenPGP: Encrypt saved drafts when OpenPGP is enabled
Twitter search removed
Calendar: Event summary dialog is now themeable
MailExtensions: Some APIs now use defineLazyPreferenceGetter in order to benefit from caching

Fixes:

OpenPGP Key Manager search function did not work
OpenPGP Key Properties dialog was sometimes too small
OpenPGP: Encrypted email would not send if address contained uppercase characters
OpenPGP: "Key ID" column could not be resized in Key Manage
OpenPGP: Keys containing invalid UTF-8 strings could not be imported
OpenPGP: Enable automatic signing for encrypted messages in additional scenarios
Many more OpenPGP bug fixes and improvements
IMAP fetch chunk size was always 65536 bytes
Attachment corruption could occur when downloading large attachments from an IMAP server that supports chunking
IMAP server capabilities were not rechecked after upgrading to SSL/TLS connection
Message Composer: Order of attachments could not be modified using drag & drop
Composing messages with a "fixed width" font did not work
Drag and drop of address book contacts did not work in some situations
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
Address book performance optimizations
Dialog to add a new mail account from "Account Settings" did not open
"Select All" (Ctrl+A) in message source did not work until focused with a mouse click
Ctrl+scroll wheel not zooming in message reader
Setting/changing a signature from a file lost when closing account settings
Adaptive Junk Mail settings could not be disabled
Message filter dialog fixes: Missing scrollbar, drop-down list not wide enough
Various UX and theme improvements