rem:  var browser = getBrowser();  browser.boxObject.removeProperty("listenerkungfu"); 
context: function Shutdown(){  // remove remote support  if (XREMOTESERVICE_CONTRACTID in Components.classes) {    var remoteService;    remoteService = Components.classes[XREMOTESERVICE_CONTRACTID]                              .getService(Components.interfaces.nsIXRemoteService);    remoteService.removeBrowserInstance(window);  }  var browser = getBrowser();  browser.boxObject.removeProperty("listenerkungfu");  try {    getBrowser().removeProgressListener(window.XULBrowserWindow);  } catch (ex) {  }  window.XULBrowserWindow.destroy();  window.XULBrowserWindow = null;  BrowserFlushBookmarksAndHistory();  // unregister us as a pref listener  var pbi = pref.QueryInterface(Components.interfaces.nsIPrefBranchInternal);  pbi.removeObserver(window.buttonPrefListener.domain,                     window.buttonPrefListener);  window.browserContentListener.close();  // Close the app core.  if (appCore)    appCore.close();}
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/6523b9be51943a2f70d9f4836e6757242773b698/navigator.js/clean/suite/browser/navigator.js