Components.utils.import("resource://gre/modules/XPCOMUtils.jsm"); Ci = Components.interfaces; Cr = Components.results; Components.utils.import("chrome://redirector/content/js/redirector.js"); function RedirectorComponent() { } RedirectorComponent.prototype = { classDescription: "My Hello World Javascript XPCOM Component", classID: Components.ID("{b7a7a54f-0581-47ff-b086-d6920cb7a3f7}"), contractID: "@einaregilsson.com/redirector;1", QueryInterface: function(iid) { if (iid.equals(Ci.nsISupports) || iid.equals(Ci.nsIContentPolicy) || iid.equals(Ci.nsIChannelEventSink)) { return Redirector; } throw Cr.NS_ERROR_NO_INTERFACE; } }; const NSGetFactory = XPCOMUtils.generateNSGetFactory([RedirectorComponent]);