Chrome is dropping NPAPI support, which includes the Unity browser plugin. Unity will be temporarily whitelisted probably through the end of 2014 but the goal

Chrome is dropping NPAPI support, which includes the Unity browser plugin. Unity will be temporarily whitelisted probably through the end of 2014 but the goal is to remove support entirely. http://blog.chromium.org/2013/09/saying-goodbye-to-our-old-friend-npapi.html http://blog.chromium.org/2013/09/saying-goodbye-to-our-old-f... So if they want to continue offering a browser plugin they have to switch to NaCl, I think.