У вашего броузера проблема в совместимости с HTML5
World of Warcraft Instance Run-Upper Blackrock Spire (UBRS). This is the hardest level 60 5-man instance. Originally it was a 10-man. First time I tried to solo this I was killed by General Drakkisath because I didn't take out his guards first. Drakkisath has a fear/DOT called Conflagration that lasts a long time and while you're feared his guards are still hitting you, so take them out first.
Stay tuned for more videos in the coming days/weeks by subscribing to my YouTube channel or following me on Twitter (http://twitter.com/wowir) and thanks for the comments and ratings! Also I will have a website very soon (hopefully).