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Unable to watch Xfinity TV using Firefox browser

New Poster

Unable to watch Xfinity TV using Firefox browser

I am unable to watch Xfinity TV shows and movies using my Firefox 39.0 browser (newly installed).  I try to watch something and I get an error 422 video unavailable.  Yet I can watch it using my Chrome browser just fine.  I am using Windows Vista Business as my operating system.  Please help.

Frequent Visitor

Re: Unable to watch Xfinity TV using Firefox browser

Are you using the very most recent version of Flash? Firefox recently blocked all previous versions for secruty reasons, and now only the newest version works. Hope that helps you.

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