How to fix the gray triangle site? I went to add-ons and selling Flash to turn on but still does not take care of the problem.

These sites had always been sure before. Now I get a gray triangle on them.

Thank you, this happens because the site uses an RC4 weak encryption:
https://Tools.ietf.org/html/rfc7465

in future versions of the browser such sites will only display an error message, so I think it is best to contact the webmasters of the site at hand and invites them to update their encryption to something contemporary...

Tags: Firefox

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