const { Cc, Ci } = require("chrome"); exports.main = function(options, callbacks) { // Close Firefox window. Firefox should quit. require("api-utils/window-utils").activeBrowserWindow.close(); // But not on Mac where it stay alive! We have to request application quit. if (require("api-utils/runtime").OS == "Darwin") { let appStartup = Cc['@mozilla.org/toolkit/app-startup;1']. getService(Ci.nsIAppStartup); appStartup.quit(appStartup.eAttemptQuit); } }