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Thunderbird 78.4.1


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 78.4.1:

  • Thunderbird prompts for an address to use when starting an email from an address book entry with multiple addresses


  • Searching global search results did not work
  • Link location was not focused by default when adding a hyperlink in message composer
  • Advanced address book search dialog was unusable
  • Encrypted draft reply emails lost "Re:" prefix
  • Replying to a newsgroup message did not open the compose window
  • Unable to delete multiple newsgroup messages
  • Appmenu displayed visual glitches
  • Visual glitches when selecting multiple messages in the message pane and using Ctrl+click
  • Switching between dark and light mode could lead to unreadable text on macOS

Known issues:

  • Message list is not focused at startup

Download: Thunderbird 78.4.1 for Windows (EN/US) | 64-bit | ~35.0 MB (Open Source)
Download: Thunderbird 78.4.1 for Linux (EN/US) | 55.5 MB
Download: Thunderbird 78.4.1 for Mac OS (EN/US) | 66.4 MB
Download: Thunderbird 78.4.1 in other languages
View: Thunderbird Website | Release Notes | Screenshot

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