YouTube videos don't play no not on Mozilla Firefox, but playing with Google Chrome for 2015-01-09

Hi guys,.
Videos YouTube played very well in the morning, but stopped playing recently on my PC and laptop at the same time. I updated Firefox to version 34.0.5 and Adobe Flash player version 16.0.0.235, but that did not fix the problem. My Google Chrome still works fine with videos of youtube.
I have the following extensions on Firefox:

   AddBlock Plus 2.6.6
   Avast on-line security 10.0.2502.149
   Flshblock 1.5.18

Any suggestions or ideas?
Thank you.
Kind regards
Vladimir

You have Flashblock installed 1.5.18 on Firefox. Mozilla Firefox does not completely support HTML5 for YouTube Player. Your extension is blocking Flash Player, which in turn blocks YouTube videos.

You can use this page to see what your browser supports and pray the HTML5 YouTube Player: https://www.youtube.com/html5

Tags: Firefox

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