The add-on provides a combined Get and Send button with a context menu with additional features. End of life This Add-on is "End of life" due to the user interface changes in Thunderbird "Supernova". The last compatible Thunderbird version for end users is 102.*. Important Be advised that as of Thunderbird 78 (Add-on version 6.0), the add-on no longer changes the original "Get messages" button. In