Unfortunately, even with EasyPrivacy and "Fanboy's Social Blocking", you will find that blockers (ABP, AdBlock, uBlock, etc) do not prevent 100% connecting to Facebook, Twitter, and whatnot.[1]

This is one of the reasons I see dynamic filtering as a key feature: users have the last word, not the filter lists.[2]

For example, I currently block all Facebook, Twitter, Disqus, and any of similarly ubiquitous domains by default using dynamic filtering, so that I have now 100% certainty that no connections to these domains occur on any page, while such certainty is not possible when relying solely on the filter lists.

[1] https://www.diffchecker.com/pz6rv6lq

[2] https://github.com/gorhill/uBlock/wiki/Dynamic-filtering:-qu...