If the plaintiff pays 500 million to the judge and the defendant goes to jail, there's no proof that the judge wouldn't have made the same decision without the 500 million. If you're a fool, you'll sneer and ask "Where's the proof?"
Why would there be any proof?
Well if you bring up law how about: innocent until proven guilty?
Google is not bribing Mozilla...they probably keep them alive to avoid all kinds of monopoly lawsuits. With their market share however, you would need more prove to justify further conspiracies...