Still not working for me, can't acces my wallet. Hope they will fix it soon and I also hope that it's not about some security issue.
But for me is not problem, every day I always open Blockchain.info. You must try to open Blockchain.info in other computer or change your browser. This case ever happen to me with Mozilla but after I change to Google Chrome can open.
the problem is not about the browser or whatever it's the DNS or you can say their server's issue,and even you're trying to change your browser if you're facing this issue then your effort will be such a useless effort because changing browser didn't solve anything