diff --git a/xpfe/browser/resources/content/navigatorDD.js b/xpfe/browser/resources/content/navigatorDD.js
index 85aed9ad3fc..2fd5f57e37f 100644
--- a/xpfe/browser/resources/content/navigatorDD.js
+++ b/xpfe/browser/resources/content/navigatorDD.js
@@ -298,7 +298,7 @@ var contentAreaDNDObserver = {
       return flavourList;
     },
 
-  onDrop: function (aData)
+  onDrop: function (aEvent, aData)
     {
       var aData = aData.length ? aData[0] : aData;
       var url = retrieveURLFromData(aData);
@@ -341,7 +341,7 @@ var proxyIconDNDObserver = {
 };
 
 var homeButtonObserver = {
-  onDrop: function (aData)
+  onDrop: function (aEvent, aData)
     {
       var aData = aData.length ? aData[0] : aData;
       var url = retrieveURLFromData(aData);
@@ -407,7 +407,7 @@ function retrieveURLFromData (aData)
     switch (aData.flavour)
       {
         case "text/unicode":
-          return aData.data.data; 
+          return aData.data.data; // XXX this is busted. 
           break;
         case "application/x-moz-file":
           var dataObj = aData.data.data.QueryInterface(Components.interfaces.nsIFile);
diff --git a/xpfe/global/resources/content/nsDragAndDrop.js b/xpfe/global/resources/content/nsDragAndDrop.js
index 8ecf3919084..3a1d90e7596 100644
--- a/xpfe/global/resources/content/nsDragAndDrop.js
+++ b/xpfe/global/resources/content/nsDragAndDrop.js
@@ -48,8 +48,6 @@
  *                                          // or not to accept drop.
  **/ 
 
-/** error codes **/
- 
 var nsDragAndDrop = {
 
   get mDragService()
@@ -153,7 +151,7 @@ var nsDragAndDrop = {
           aEvent.preventBubble();
           // hand over to the client to respond to dropped data
           if (aDragDropObserver.onDrop) 
-            aDragDropObserver.onDrop(dragData);
+            aDragDropObserver.onDrop(aEvent, dragData);
         }
     },