I am using Firefox 15.0.1
I also tried to download/install in Explorer and got the SAME error
I uninstalled flash restarted PC and now cannot DL it at all due to the "Host" error. The file will save to downloads(firefox), but when I attempt to RUN it I get the error. It all began when I was trying to view a posted music video by a friend on Facebook and the player wouldnt load
AMD athlon 64 dual core 3800+ 2.00 GHz
Go to the following page and download Flash Player plug-in: http://helpx.adobe.com/content/help/en/flash-player/kb/installation-problems-flash-player- windows.html#main-pars_header
Close your browsers and double-click the downloaded file.