rem: var prefs = Components.classes["component: 
add: var prefs = Components.classes["@mozilla.org/preferences;1"]; 
context: function getBrowserURL() {  try {    var prefs = Components.classes["component://netscape/preferences"];    if (prefs) {      prefs = prefs.getService();      if (prefs)        prefs = prefs.QueryInterface(Components.interfaces.nsIPref);    }    if (prefs) {      var url = prefs.CopyCharPref("browser.chromeURL");      if (url)        return url;    }  } catch(e) {  }  return "chrome://navigator/content/navigator.xul";}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/5aaa36b0a4ab7f0b4e1acea9963a5b71a25a153e/utilityOverlay.js/buggy/suite/common/utilityOverlay.js