It appears the footnote causes display issues in Firefox (looks fine in Chrome and Safari). Likely due to the text-indent -9999999px declaration (which seems like an ugly hack to me?).

Anyone else experience this issue, or is it just me? (I haven't been able to test on another desktop). If so, it's unfortunate the developers didn't catch this. (or at least not yet? :)

Great post. Cheers!