Software Update: Mozilla Thunderbird 102.2.1

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The Mozilla Foundation has released version 102.2.1 of Thunderbird. Thunderbird is an open source email and newsgroup client, with features such as support for multiple mail and news accounts, a spam filter, spell checker, and a customizable appearance. In version 102, which is not currently offered as an automatic update to version 91.x, Mozilla has refreshed the user interface and address book, made importing and exporting user accounts easier, and added the Matrix chat protocol, among other things. The following improvements have also been made in this update:

What’s New

  • Commandline argument to open Calendar at startup added (-calendar)


  • Buttons to connect automatically discovered Address Books and Calendar during Account Setup now displayed


  • Compacting IMAP folders failed when “Just mark as deleted” was set
  • Message threading status and sort order was not transferred when applying column layout to other folders
  • Folder names with half-width Kana characters were displayed incorrectly
  • Digital signing of messages was not disabled after switching to an identity that could not sign
  • POP message retrieval stopped after a network error occurred and connectivity was restored
  • Activity Manager didn’t show “Get Messages” activity when “Leave messages on server” was turned off and no new messages were found
  • Mail quota color did not update properly for multiple accounts
  • Profile export failed if an expected file did not exist
  • Check Spelling dialog could exceed screen size when many dictionaries were available
  • Dragging a news message to the Desktop caused Thunderbird to hang when synchronized for offline use
  • Remove All Expired Articles was not displayed on expired NNTP messages
  • Sending messages to encrypted Matrix rooms failed in some cases
  • Adding a CalDAV calendar on BSD-based OS’s failed due to DNS errors
  • Various visual and UX improvements
  • Various security fixes

Known issues

  • “Get Map” feature missing from address book for physical addresses
  • No dedicated “Department” field in address book

Version number 102.2.1
Release status Final
Operating systems Windows 7, Linux, macOS, Windows 8, Windows 10, Windows 11
Website Mozilla Foundation
License type Freeware
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