Flash player not working for OS X El Capitan on Mac

So I recently downloaded the newest version of Adobe flash player a couple weeks ago. Today, I upgraded to OS X El Capitan on my mac book, went to go watch Netflix, and it is not working at all. Youtube videos work fine, it is just Netflix and anytime I try to watch full episodes on a tv program's website. I have gone to system preferences and clicked allow under flash player, but that did not work. I uninstalled the newest adobe flash player but that still does not work. Does anyone know how to fix this?