rem: var menu = aMenuPopup.childNodes[i-1]; 
add: var menu = aMenuPopup.childNodes[i]; 
context:   updateOverflowMenu: function (aMenuPopup)  {    var hbox = document.getElementById("bookmarks-ptf");    for (var i = 1; i < hbox.childNodes.length; i++) {      var button = hbox.childNodes[i];      var menu = aMenuPopup.childNodes[i-1];      if (menu.collapsed == button.collapsed)        menu.collapsed = !menu.collapsed;    }  },
meta: 10234	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/10234/9273880c70ae226f38751ca490af247420ca0d1e/bookmarksMenu.js/buggy/browser/components/bookmarks/content/bookmarksMenu.js