If you read instructions how to fix the not able to move thingy.
It says look in the update tab, but if you don't know where it is I would share it here.
Q) Why Can’t I Move?
A) Right click the game window, and go to the menu option called “Release Channel”, then make sure it is set to “Stable”.
If you don’t see the “Release Channel” menu when right clicking the game window, then go here: http://unity3d.com/webplayer/ and download, the latest version of Unity3d WebPlayer. Uninstall your current version, before installing this newly downloaded version.
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