// ==UserScript==
// @name       Facebook Chat Offline Hide
// @namespace  FCCOH
// @include     https://www.facebook.com/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js
// @grant       GM_getValue
// @grant       GM_setValue
// @version     0.1.2
// @description Hides the Offline users from the Facebook Chat
// @downloadURL none
// ==/UserScript==

setInterval(function () {
  console.log("running now...");
  $('._42fz').each(function (i, obj) {
    var $found = $(this).find("span").css("background-color", "rgb(66, 183, 42)");

    if ($found.length === 0) {
      console.log($(this));
      $(this).hide();
    }
  });
}, 5000);