uBlock Origin is great for blocking Ads though. If you really need to block scripts, there's NoScript.
I recommend using at least the adblocker and the tracker blocker, even if only to reduce memory usage of the browser and take back a couple of CPU cycles from your computer stolen by pesky ads.
I just check the privacy list options in uBlock Origin.
https://github.com/gorhill/uBlock/wiki/uBlock-vs.-ABP:-effic...
uBlock Origin with either "Fanboy's Third Party Social" or "Fanboy's Social Blocking List" selected will block all third-party connections to Facebook servers, period. Of course Facebook can still spy on you via other spy companies, but the "EasyPrivacy" list cuts that down a lot too.
On the other hand, Facebook Container still happily connect to Facebook servers from third-party websites, leaking your IP, useragent, the URL of the webpage you're viewing, headers containing fingerprinting information like fonts , etc. Facebook Container does one thing and one thing only: strip off the Facebook cookie. But this is almost worthless from an information theoretic perspective, because Facebook can trivially de-anonymize you through IP/timestamp/header correlation.
What? How do you open a non-Facebook website in the Facebook container? When you open external links on Facebook, from the Facebook container, they open in the normal container.