adkiller2.js

// ==UserScript==
// @name         Facebook Ad Killer
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Kill All the Facebook Suggested Posts
// @author       Matthew Harris
// @match        https://www.facebook.com/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    killAd();
    // every 3 seconds search and destroy new ads (they load async, as you scroll)
    window.setInterval(function(){
        killAd();
    }, 3000);
})();

function killAd() {
    'use strict';
    var searchString = 'Suggested Post';
    var searchString1 = 'Only you can see this preview until you run this ad';
    var elements = document.getElementsByTagName('span');
    for (var i = 0; i < elements.length; i++) {
        if (elements[i].innerHTML === searchString || elements[i].innerHTML === searchString1) {
            console.log("Found One");
            var element = elements[i].parentNode.parentNode.parentNode.parentNode.parentNode.parentNode;
            element.parentNode.removeChild(element);
        }
    }
}