I think that StopAd is such a great application to have.
It is ways different than the extensions you can find on every web browsers, and it makes you feel free to navigate without getting contaminated by ads all the time. It also block ads comming directly from facebook, which is the only adblocker I found doing that.
Their 24/7 support live chat is just amazing, I had an issue with some ads still popping which was created by interference between two adblockers I had, the advisor helped me, solved my problem within 5 minutes, was really respectful, and that is clearly unique, whatever you live, you know that you can get some answers quickly.
They seems to work hardly for their adblocker, and you guys better give it a try before making any opinion.