// ==UserScript==
// @name        Mail.ru: WE NO NEED AUTOPLAY
// @namespace   lainscripts_mailru_stop_autoplay
// @include     *.mail.ru/video/*
// @version     1
// @grant       none
// @description Tries to disable autoplay feature for video on mail.ru.
// @downloadURL none
// ==/UserScript==
var frames = document.querySelectorAll('iframe'),
i = frames.length;
while (i--) {
  if (frames[i].src.search('autoplay' > - 1))
  frames[i].src = frames[i].src.replace('?autoplay=1&', '?').replace('&autoplay=1&', '&').replace('?autoplay=1', '');
}