content: this :  http://www.howtogeek.com/188059/how-to-enable-click-to-play-plugins-in-every-web-browser/?PageSpeed=noscript "Most web browsers load Flash and other plug-in content as soon as you open a web page. Enable “click-to-play” plug-ins and your browser will load a placeholder image instead — click it to actually download and view the content. Click-to-play allows you to conserve download bandwidth, improve page load times, reduce CPU usage, and extend laptop battery life. This feature gained popularity with Flashblock for Firefox and is now built into modern browsers."