Greetings! When I open an attachment in TBird, specifically a .PDF attachment, it opens in Adobe Acrobat, but it also copies itself to the desktop. I then want to save my completed, edited document to dropbox for example but I am still left with a copy of it on my desktop which I must then manually delete. Is there a way I can stop this from happening? Running TBird latest on a Mac Air with latest OS. Thanks!