--- a/suite/mailnews/addrbook/addressbook-panel.xul
+++ b/suite/mailnews/addrbook/addressbook-panel.xul
@@ -56,18 +56,20 @@
       title="&selectAddressWindow.title;"
       selectedaddresses="true">
 
   <stringbundleset id="stringbundleset">
     <stringbundle id="bundle_addressBook" src="chrome://messenger/locale/addressbook/addressBook.properties"/>
   </stringbundleset>
 
   <script type="application/javascript" src="chrome://global/content/globalOverlay.js"/>
+  <script type="application/javascript" src="chrome://global/content/nsDragAndDrop.js"/>
   <script type="application/javascript" src="chrome://messenger/content/addressbook/addressbook.js"/>
   <script type="application/javascript" src="chrome://messenger/content/addressbook/abCommon.js"/>
+  <script type="application/javascript" src="chrome://messenger/content/addressbook/abDragDrop.js"/>
   <script type="application/javascript" src="chrome://messenger/content/addressbook/abResultsPane.js"/>
   <script type="application/javascript" src="chrome://messenger/content/addressbook/abSelectAddressesDialog.js"/>
   <script type="application/javascript" src="chrome://messenger/content/addressbook/addressbook-panel.js"/>
   <script type="application/javascript"
           src="chrome://communicator/content/utilityOverlay.js"/>
 
   <commandset id="addressbook-panel-commandset">
     <command id="cmd_newlist" oncommand="AbNewList();"/>