Hi Sean, The CDFplayer works locally on my desktop without a problem. It doesn't require that I enable dynamic content either. I downloaded a wolfram demo project that would not run via the browser, and that runs on my local desktop after dynamics are enabled. I'm thinking that the browser plugin might be configured with dynamics disabled so no CDF should work. It's not clear how to enable this function. Wolfram technical support message said it could take up to three days for a response.

You got me thinking about this so I downloaded and installed CDFplayer from the Wolfram website thinking that it might update my browser plugin as I installed Mathematica 10.2.0 in July from a March 2015 release. This seems to have fixed the problem. The Wolfram Mathematica plugin is now version 10.2.30747.44909. All is computational well again.