Untitled

// ==UserScript==
// @name         Nitter!
// @namespace    http://exmaple.com/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://twitter.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=nitter.net
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';

    document.location.href = document.location.href.replace('twitter.com', 'nitter.net');
})();