У вашего броузера проблема в совместимости с HTML5
This video is kind of lengthy, but it'll show you how to make your own YouTube layout. It's a really simple, fun, and innovative way of doing it and just be creative. The background isn't all professional, but if you have "skills" it'll look really nice on your channel.
If you're lazy or don't want to do any of these things, you can check out the site YTLayouts, the layouts are all pre-made, so just browse through the site until you find a layout that you like.
http://YTlayouts.net
Mozilla Firefox
http://www.mozilla.com/en-US/
ScreenGrab
https://addons.mozilla.org/en-US/firefox/addon/1146
Gimp (Full/Free)
http://www.gimp.org/
Adobe Fireworks Trial
http://www.adobe.com/products/fireworks/
Adobe Photoshop
http://www.adobe.com/products/photoshop/compare/
Website
http://fireworkstutorial.co.cc