Pause autoplaying HTML5 videos on load. In Firefox just go into about:config and look for media.autoplay.enabled and set to false.
Stan na
// ==UserScript==
// @name Pause all HTML5 videos on load
// @namespace http://userscripts.org/users/Scuzzball
// @include *
// @version 0.0.1.20141116220030
// @description Pause autoplaying HTML5 videos on load. In Firefox just go into about:config and look for media.autoplay.enabled and set to false.
// ==/UserScript==
var videos = document.getElementsByTagName('video');
window.addEventListener('load', stopVideo, false);
function stopVideo()
{
for (var i=0; i<videos.length; i++)
{
videos[i].pause();
video.currentTime = 0;
}
}