I upgraded to the latest version of Thunderbird about 4 weeks back. (Not sure what version I was on before). Ever since then the New Email Window does not open up automatically when I am exploring folders and decide to right click on a file and select: SEND TO and then select: MAIL RECIPIENT. Only Thunderbird opens up, but that is all. Other programs that also used to automatically open the New email window with an attachment, no longer work either. Previously a Write New Email window would open automatically together with the selected file attached, followed by Thunderbird also opening up. How do I get this desired behavior back again.