example notifcationbox addon

notification.js

"use strict";

const observer = require("observer-service");
const tabs = require("tabs");
const widgets = require("widget");
const { WindowTracker, isBrowser } = require('api-utils/window-utils');

var widget = widgets.Widget({
  id: "mozilla-link",
  label: "Mozilla website",
  contentURL: "http://www.mozilla.org/favicon.ico",
  onClick: function() {                                  
    var window = require("api-utils/window-utils").activeBrowserWindow;
    var nb = window.gBrowser.getNotificationBox();
        var buttons = [{
            label: 'Button',
            accessKey: 'B',
            popup: 'blockedPopupOptions',
            callback: null
        }];

    nb.appendNotification(subject,'got-notice',
      'chrome://browser/skin/Info.png',
      nb.PRIORY_INFO_LOW, {});
  }
});

console.log("The add-on is running.");