Software Update: Mozilla Thunderbird 102.4.1

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The Mozilla Foundation has released version 102.4.1 of Thunderbird. Thunderbird is an open source email and newsgroup client, with features such as support for multiple email and news accounts, a spam filter, spell checker, and a customizable appearance. In version 102 Mozilla has refreshed the user interface and the address book, made importing and exporting user accounts easier and added the Matrix chat protocol. The following improvements have also been made in this update:

What’s New

  • Thunderbird will now catch and report errors parsing vCards that contain incorrectly formatted dates


  • Dynamic language switching did not update interface when switched to right-to-left languages
  • Custom header data was discarded after messages were saved as draft and reopened
  • -remote command line argument did not work, affecting integration with various applications such as LibreOffice
  • Messages received via some SMS-to-email services could not display images
  • VCards with nickname field set could not be edited
  • Some recurring events were missing from Agenda on first load
  • Download requests for remote ICS calendars incorrectly set “Accept” header to text/xml
  • Monthly events created on the 31st of a month with
  • Various visual and UX improvements

Version number 102.4.1
Release status Final
Operating systems Windows 7, Linux, macOS, Windows 8, Windows 10, Windows 11
Website Mozilla Foundation
License type Prerequisites (GNU/BSD/etc.)
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