Bug #231552 -->dragging addresses to addressing widget causes attachment bucket to pop open

mail/components/compose/content/MsgComposeCommands.js

@@ -2767,6 +2767,8 @@ var envelopeDragObserver = {
     },
 
   onDragOver: function (aEvent, aFlavour, aDragSession)
+    {
+      if (aFlavour.contentType != "text/x-moz-address")
       {
         // make sure the attachment box is visible during drag over
         var attachmentBox = document.getElementById("attachments-box");
@@ -2775,6 +2777,7 @@ var envelopeDragObserver = {
           attachmentBox.hidden = false;
           document.getElementById("attachmentbucket-sizer").hidden=false;
         }
+      }
     },
 
   onDragExit: function (aEvent, aDragSession)