[IpxqwidxG]

Touch it very lightly, like a feather. Or hold it strongly and then roll it along with the page, then take your fingers off. It should work. That it is curling up is the expected behavior so you're just fine there!

Mathjax is loading/rendering a bit incorrectly on FF, for we're hammered right now. Will fix!

[QuantumRoar]

Yeah, equations seem to be completely broken on Firefox. Is there a reason you use Mathjax?

Personally, I prefer using LaTeX -> PDF -> SVG and simply including them as images. Nothing's going to break with that, I guess.