I skimmed through the article, but really I only need like a very few amount of extensions:
Adblock (Ublock ORIGIN or Adblock Plus)
Tampermonkey
Paywall remover (Basically does what Archive.is does but on your machine)
The rest of the extensions i had were for one specific use case and could be deleted/disabled once done with them.
To keep your browser secure try to have as few extensions as possible.
(Speaking of browsers: when is Servo coming out? And is anyone here old enough to remember Microsoft's Cairo? (I'm not))