You may have surfed a variety of sites (I don't know), however none of them passed the anti spam algorithm. A suggestion would be don't browse web pages too fast.
I spent a good one hour surfing on sites that I usually do, Bitcointalk, Pandora, Bitbook, CoinChat etc at a normal pace to ensure that I was giving your extension a fair go to actually credit. I don't believe the issue to be on my end (unless ABP or Hola has something to do with it) so you may want to look into that as well. Thus far I have temporarily redacted my post.