Changes in Thunderbird 81

messageDisplay

  • The getDisplayedMessages(tabId) function has been added to allow access to details of multiple-selection of email. Previously only a single selection function was available.

    This change has been backported to Thunderbird 78.4.0.

  • The onMessagesDisplayed(tab, messages) event has been added.

    This change has been backported to Thunderbird 78.4.0.

See the documentation on those functions and events for more information.