Thanks for sharing the extension.
Some feedback on the title: "Do you want Facebook to stop collecting data about you on other sites?" would have been more honest/accurate, though I was happy to see that you covered the behavioral analytics etc. in your article.
I'm not aware of any ways to prevent Facebook from gathering data about you if you continue to use the service.
Anyhow, resteemed and thanks again for the tip.
RE: Do you want Facebook to stop collecting data about you on other sites? Here is a solution that doesn't require deleting the account!