This must have been placed on a bunch of websites recently. I'm a habitual "highlight as I read" person. I noticed a couple months back that quite a few websites started the FireFox activity indicator spinning when I highlighted (New York Times included).
I wonder how much useful information this "service" is actually providing to content hosters. I must send dozens of small chuncks of text every time I read an article.
Can I disable this through AdBlock?