Curious? Why were they disabled? And when did they get disabled?
Just checking my rules and those three Core Networking rules were already enabled on all my systems.
And I don't have any rules listed for Firefox so not sure why you even have that. While FF is not my default (Pale Moon is), I just fired up FF and it works fine.
So I checked to make sure I have all those updates, and I do. While 7128, 6655, and 7146 were all installed on 9/12/2018, 0347 was installed 3+ weeks ago on 8/22/2018. Seems odd your 0347 was just installed this morning. ???
Did you change those default settings and add the FF rule? If so, I wonder if you have not fallen victim of your own design. That is, changes to the defaults you made might have come around to bite you.