Gmail would not be a multi-billion dollar company. It doesn't make money (remember they don't target ads on email content anymore). You'd have to roll in Google apps for business to get to the money making part.
Chrome definitely isn't a multi-billion dollar company. There is no revenue stream there. Firefox only exists by selling the search bar and being a non-profit.
Chrome definitely isn't a multi-billion dollar company. There is no revenue stream there. Firefox only exists by selling the search bar and being a non-profit.