my TamperMonkey for twitter

gistfile1.txt

// ==UserScript==
// @name         New Userscript
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://twitter.com/
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // STOP navigating away when I've been writing this DM forever
    window.onbeforeunload = function() {
      return "Are you sure you want to navigate away?";
    };

    // Hide tweets liked by people I'm following
    var style = document.createElement('style');
    style.type = 'text/css';
    style.innerHTML = 'li.stream-item[data-suggestion-json*=ActivityTweet] { display: none; }';
    document.getElementsByTagName('head')[0].appendChild(style);

})();