FlashControl for Firefox gives you control over which sites are allowed to display the Flash player or the HTML5 player. Available for Chrome.

FlashControl for Firefox gives you control over which sites are allowed to display the Flash player or the HTML5 player. Available for Chrome..Flash player plays Flash media (embed/object elements). HTML5 player plays HTML5 media (video/audio elements). Media Source Extensions for HTML5 players are only partially supported. It was originally designed with Youtube in mind. In addition to the context menu for whitelisting domains, there's also a simple UI, which is accessible via the Sidebar for managing the whitelist.

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