For the last version of Mozilla Firefox, please, follow the steps bellow:


  1. Try to play any content

  2. Click on the plugin icon as shown:

  3. Mark  "Remember this decision" and "Allow"

  4. Ready!


P.S.: For older versions of Mozilla Firefox, please, download and install Adobe Flash Player 


https://get.adobe.com/es/flashplayer/ and before step one.