It also affected Firefox ESR (unless, I guess, there is a custom policy for search engines). Because, you know, system administrators simply love self-destructing software.
Tomorrow they will disable mouse input, and tell everyone that those who need it should've had a specific rule.
I've been installing Firefox with useful extensions on all computers of friends and relatives (if only because it's not fucking Google Chrome Cage), and now they got a shovelful of shit straight from Mozilla.