try to take over the world!
// visit some profile on fb, then open console then type and press enter: get_id
// ==UserScript==
// @name Get Facebook UID
// @namespace http://tampermonkey.net/
// @version 0.1
// @description try to take over the world!
// @author You
// @match https://www.facebook.com/*
// @grant unsafeWindow
// ==/UserScript==
(function() {
'use strict';
Object.defineProperty(unsafeWindow, 'fbid', {
get: function () {
return JSON.parse(document.getElementById("pagelet_timeline_main_column").getAttribute("data-gt")).profile_owner;
}
});
})();