gistfile1.txt

shell = Components.classes["@mozilla.org/browser/shell-service;1"]
	      .getService(Components.interfaces.nsIShellService);

var ios = Components.classes["@mozilla.org/network/io-service;1"]
			.getService(Components.interfaces.nsIIOService);
var ssm = Components.classes["@mozilla.org/scriptsecuritymanager;1"]
	      .getService(Components.interfaces.nsIScriptSecurityManager);
var dsm = Components.classes["@mozilla.org/dom/storagemanager;1"]
	      .getService(Components.interfaces.nsIDOMStorageManager);