When I play any version of Minecraft, I can't see skins or heads.

Hi,

You most likely are having a bad connection to the skin servers. Make sure you have a good connection and that your dns server doesn’t block the skin server. Try restarting your game and it should try to connect to the skin server.

I took your advice, didn't work. However, there is another issue that might intervene with skins. When I play Minecraft, I have to open Task Manager and force end an extra Minecraft Launcher or it'll give me an error message, "Java(TM) SE Binary Stopped Working."