Twitch Can't Turn Off Html5 Player
To disable HTML5 player on Twitch, simply access your account settings from your profile page and navigate to Playback. From there you can turn off the option labeled Enable video stats overlays which will revert back to Flash Player playback mode. The html5 player will not turn off if flash is disabled, make sure it is installed and enabled on the page (3rd party plugins disabling it, etc)
Twitch may revoke embed usage for domains that are not in compliance. The use of any Twitch embeddable experience must comply with the requirements below and the Twitch Developer Services Agreement. The feature to disable the auto play of homepage video player has some unintended side affects.
If a stream from the following list is clicked on before the homepage is fully loaded, the active stream that was clicked on is paused automatically instead of the homepage streams. The extension was created by independent developer, who is not affiliated with Twitch Interactive, Inc company in any way. The extension inserts part of the Twitch.tv website chat into extension player.
It is known that you cannot turn off HTML5. Adblockers only work with HTML5 turned off, so now twitch forces us to watch in HTML5 so that we HAVE to watch the ads. Nothing we can do about it.
Keep in mind that Adobe will stop updating Flash player soon also, they had stated this back in August. There are several ways to opt in/out of experiments, but the easiest one for most users is to simply just clear all Twitch-related cookies/cache and restart your browser. Any way to opt out of HTML5 player? I've apparently been lucky/unlucky and now have the HTML5 player on any stream I watch.
It looks nice, but unfortunately it doesn't play nice with my 16:10 aspect ratio monitors and now even the non-fullscreen player has black bars at the top and the bottom. Try enabling flash before you turn off HTML5. If you are using chrome, click the little lock secure button to the left of the URL and have flash "always allow" and see if it works.
I have always switched back to Flash from HTML when watching live streams, because the HTML5 player will 'freeze' every 2-3 seconds for 1/4th of a second, producing a constant stutter like a record skipping as others have reported similar experiences.
