How do you get by without extensions? The extension "store" (now part of the App Store) isn't searchable, and among the available extensions, which are very few, most are junkware.
Not OP, but my use cases don't really require "traditional" extensions; 1Blocker and the Instapaper button are all I really need and want for day to day browsing, so improved extension support on other browsers doesn't add any value for me.