rem: close(); 
add:   document.documentElement.getButton("cancel").click(); 
context:   onUpdateEnded: function() {    var em = Components.classes["@mozilla.org/extensions/manager;1"]                       .getService(Components.interfaces.nsIExtensionManager);    // Retrieve the remaining incompatible items.    gUpdateWizard.items = em.getIncompatibleItemList(null, null,                                                     nsIUpdateItem.TYPE_ADDON,                                                     true, { });    if (gUpdateWizard.items.length > 0) {      // There are still incompatible addons, inform the user.      document.documentElement.currentPage =         document.getElementById("mismatch");    }    else {      // VersionInfo compatibility updates resolved all compatibility problems,      // close this window and continue starting the application...      close();    }  },
meta: 9421	/local1/tlutelli/issta_data/temp/all_js/javascript/2006_temp/2006/9421/0cdb8a07a6e8a44767afe34660c13cbd32cbe6a4/update.js/buggy/toolkit/mozapps/extensions/content/update.js