Pretty much any decent mass transit system in the world is packed at rush hour. The whole advantage over private vehicles comes from the fact that people take up less space.
Courts have held that people have less rights while driving then they do in other settings (such as walking down the street or as a passenger in a vehicle). For example, the doctrine of implied consent allows the government to compel you to submit to a blood alcohol test without a warrant. I wonder if something similar could be applied here.
I certainly support civil liberties, but they need to be balanced against the government's strong interest in preventing the bloodshed that comes from the reckless operation of vehicles.
I am a social worker and SharePoint is unfortunately widely used by nonprofit agencies for storing client records. It's a real shame, but they can't afford anything better.
Most of these chromium-based browsers are intended to address privacy concerns. Firefox (mostly) respects your privacy.
There are also sometimes compatibility issues with Firefox because web developers only test on chromium and webkit. Anyone opinionated enough to put up with that is just going to use Firefox.