I'm usually not a friend of 1 star reviews, they always feel a bit biased. However this plug-in deserves its one star, congratulations! Today after re-activating Jetpack comments, I realised that the Jetpack comment box (which is actually much better than FB's own comment box, because you can also comment using Twitter or your email) had a huge empty space underneath. Not in Chrome and Safari, however in Firefox and any mobile browser I tried on my Android Jelly Bean device. Several frustrating and unproductive hours went down the drain until I realised, it was the FB-plugin breaking my Jetpack comment box. Obtrusive and peculiar as Facebook itself. Don't install unless you get a kick out of checking what it will break next.