In which case I'd love to know what it was doing sending that much data to Google IPs when I don't use Google services... I've read all the Mozilla help pages

In which case I'd love to know what it was doing sending that much data to Google IPs when I don't use Google services... I've read all the Mozilla help pages about what automatic connections Firefox makes and it wasn't accounted for there (unless possibly something to do with SafeBrowsing.)