Thunderbird 78.0

Thunderbird 78.0a1
Thunderbird 78.0.2
Thunderbird 78.0.1

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Thunderbird version 78.0 is only offered as direct download from thunderbird.net and not as an upgrade from Thunderbird version 68 or earlier. A future release will provide updates from earlier versions. Add-on support: As of version 78.0, Thunderbird only supports MailExtensions. Your favorite add-ons may not have been updated for compatibility.

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.

What's new in Thunderbird 78.0.1:

OpenPGP: Key revocation, extending key expiration, and secret key backup

Same here (Thunderbird 78.0): Message preview pane doesn't display message headers or contents; New tab doesn't display message headers or contents; New window does display message headers or contents; I disabled every plugin but a provider for google calendar. The version of Thunderbird installed on the remote Windows host is prior to 78.0. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2020-29 advisory. When%2F was present in a manifest URL, Firefox's AppCache behavior may have become confused and allowed a manifest to be served from a subdirectory. So I will get 78.0 and not 68.10 when I do a Help About Thunderbird using my 68.9.0? I thought users of the 68.x.x version didn't get updated until 78.3 was released giving extension developers at least until approximately 2020-09-22 to get extensions working for all users.

Thunderbird 78.0a1

Fixes:

Drag & Drop multiple attachments to macOS Finder created duplicate files
Faceted search date and relevance settings not saved
FileLink attachments included as a link and file when added from a network drive via drag & drop
About Thunderbird dialog keyboard shortcuts did not work
CC'd recipients sometimes displayed collapsed in header pane
Incremental search in contacts sidebar did not always display local results when an LDAP server was also in use
Contacts sidebar search results cleared after removing a contact
OpenPGP: Messages with long Armor Header lines did not display
OpenPGP: Messages containing non-UTF-8 text were not supported
Various UI and theming fixes
Chat: Participants list did not display operator flags

Thunderbird 78.0.2

Thunderbird 78.0.1

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