this script will stop every page it take a longer
// ==UserScript==
// @name Just stop something
// @namespace http://tampermonkey.net/
// @version 0.1
// @description this script will stop every page it take a longer
// @author You
// @match *
// @grant none
// @license MIT
// ==/UserScript==
(function() {
'use strict';
window.stop();
// Your code here...
})();