Every time I try to sort hacks by character or stage, I get a popup that says "Problem:", then "Prevent this page from showing more dialogues" or something to that effect. It won't go away and I can't search characters.
Turn SafeSearch OFF, or the Facebook app ON.
There's another problem I've noticed, but I don't know if it's known or not.
If you go into "Advanced Search" and you click on any character, stage, item, whatever slot icon while on the Advanced Search page, you get the typical error page "The connection was reset" that FireFox users get.