const Cc = Components.classes; const Ci = Components.interfaces; const runtime = Cc["@mozilla.org/xre/app-info;1"].getService(Ci.nsIXULRuntime); if (typeof(run_test) == "undefined") { run_test = function() { do_check_eq(runtime.processType, Ci.nsIXULRuntime.PROCESS_TYPE_DEFAULT); } }