--- a/browser/base/content/browser.css
+++ b/browser/base/content/browser.css
@@ -450,19 +450,22 @@ toolbarpaletteitem > #personal-bookmarks
 }
 
 toolbarpaletteitem[place="toolbar"] > #personal-bookmarks > #bookmarks-toolbar-placeholder,
 toolbarpaletteitem[place="palette"] > #personal-bookmarks > #bookmarks-toolbar-button,
 #personal-bookmarks:-moz-any([overflowedItem=true], [cui-areatype="menu-panel"]) > #bookmarks-toolbar-button {
   display: -moz-box;
 }
 
+#personal-bookmarks {
+  position: relative;
+}
+
 #PlacesToolbarDropIndicatorHolder {
   position: absolute;
-  top: 25%;
 }
 
 #nav-bar-customization-target > #personal-bookmarks,
 toolbar:not(#TabsToolbar) > #wrapper-personal-bookmarks,
 toolbar:not(#TabsToolbar) > #personal-bookmarks {
   -moz-box-flex: 1;
 }