rem: const service = Components.classes["@mozilla.org/observer-service;1"] 
add: var service = Components.classes["@mozilla.org/observer-service;1"] 
context: function RegisterTabOpenObserver(){  const observer = {    observe: function(subject, topic, data)    {      if (topic != "open-new-tab-request" || subject != window)        return;      delayedOpenTab(data);    }  };  const service = Components.classes["@mozilla.org/observer-service;1"]    .getService(Components.interfaces.nsIObserverService);  service.addObserver(observer, "open-new-tab-request", false);}
meta: 8395	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/8395/b2d4d4e2cfc812780082b3fa8e4104de85b6591a/navigator.js/buggy/xpfe/browser/resources/content/navigator.js