This is a shellacking by Justice and the Plaintiffs against Google. I honestly don't know how Chrome survives on its own without search attached—ironically, perhaps as a non-profit foundation? That'd be pretty funny.
Ostensibly advertisers would still want preferential access to the dominant browser, in whatever shape it ends up, but then...wouldn't it baldly just be an ad viewing apparatus?
This is an unbelievable opportunity for Mozilla, which I have every confidence they can fumble.