For Firefox 45+, replaces the HTML5 video player with a plugin for a .mov file opened stand-alone
// ==UserScript==
// @name Play QuickTime MOV in Plugin (for stand-alone .mov)
// @description For Firefox 45+, replaces the HTML5 video player with a plugin for a .mov file opened stand-alone
// @author Jefferson "jscher2000" Scher
// @namespace JeffersonScher
// @copyright Copyright 2016 Jefferson Scher
// @license BSD 3-clause
// @include http*://*/*.mov
// @include http*://*/*.mov?*
// @include http*://*/*.mov#*
// @include file:///*/*.mov
// @version 0.5
// @grant none
// ==/UserScript==
/*
To enable this script for local file:/// URLs you need to use about:config to switch the following
preference from false to true: extensions.greasemonkey.fileIsGreaseable
*/
// Check for video/quicktime plugin support
if (!navigator.mimeTypes['video/quicktime']){
window.alert("Sorry, no plugin found to play QuickTime video!");
} else {
// Create object
var obj = document.createElement('object');
obj.setAttribute('type', "video/quicktime");
obj.setAttribute('data', window.location.href);
obj.setAttribute('autoplay', 'true');
obj.setAttribute('style', 'width:90%; height:90%; display:block; margin-left:auto; margin-right:auto;');
// Replace body with object
document.body.innerHTML = '<p style="color:#3dd">Inserting QuickTime player below...</p>';
document.body.appendChild(obj);
}