FaceBook still showing pertinent ads even after running CCleaner

I need some help understanding what items I should check off for CCleaner to delete. I thought getting rid of cookies would stop programs from knowing what I'v been searching for on the web, but Facebook is showing ads for things I searched for using Google.

CCleaner won't get rid of ads!

If you don't like the ads on websites ad blocking software in your browser(s) is the way to go, and a HOSTS file such as MVPS HOSTS File.

Ads track you on their servers not your local machine, so you'll have to sneak CCleaner on to their machines if you wanna do something about it :lol:

Surfing pr0n at work is no way to go through life, son.