--- a/browser/components/places/content/places.xul
+++ b/browser/components/places/content/places.xul
@@ -39,18 +39,21 @@
         onunload="PlacesOrganizer.destroy();"
         width="&places.library.width;" height="&places.library.height;"
         screenX="10" screenY="10"
         toggletoolbar="true"
         persist="width height screenX screenY sizemode">
 
   <script type="application/javascript"
           src="chrome://browser/content/places/places.js"/>
+#ifndef XP_MACOSX
+  <!-- On Mac, this is included via macBrowserOverlay.xul -> browser.js -> defineLazyScriptGetter -->
   <script type="application/javascript"
           src="chrome://browser/content/places/editBookmarkOverlay.js"/>
+#endif
 
   <stringbundleset id="placesStringSet">
     <stringbundle id="brandStrings" src="chrome://branding/locale/brand.properties"/>
   </stringbundleset>
 
 
 #ifdef XP_MACOSX
 #include ../../../base/content/browserMountPoints.inc