I have AdBlocker plus, have had for quite a while. The FB Purity got rid of other stuff.

Example - when you Like something, thumbnail pictures appear underneath the post you Liked, saying you may like these other sites or whatever. They're now gone.

I suggest trying it, seeing if there is a difference you like, then uninstalling if you don't like it.

Uninstall directions are here: http://www.ehow.com/how_8716953_remo...ty-script.html