I briefly read institutional as 'intentional', with both in mind, the standardization of experience is something that's really wroth thinking about.
One feeling I am starting to get is server side web apps might make more of a re-emergence, because putting so much application and business logic in the front end serves as a bigger footprint for possible security issues.
With respect to resistance to browsers (or preference for something else), I agree that users seek familiarity and those who got to start with Firefox do still remember it.
Mozilla is just one org, but it's relative independence will hopefully provide other perspectives to using a web browser as a universal interface, not just for humans, but our new sentence-dna containing friends.