Not work at all !!!
Even i use this ext, facebook knows where and what i visit. Advertising on facebook match exactly with the sites and interests i've visited just before open facebook.
I do not understand why !

This add-on breaks the ability to use Facebook to login into some other sites. Worst, it just results in a blank login page on some sites (like cbc.ca) so it wasn't clear that it was caused by this add-on.

I don't think this is containing the facebook tab from tracking other tabs because it showed the exact artists ad from the youtube tab i was listening to and i assure you i dont get much artist ads on facebook. I would love to get any sort of help because facebook can be scary at time