Facbook recieved the mother of all fines of 5 Bn USD and lost 725 Mn USD in lawsuits over Cambridge Analytica despite there not being any evidence Facebook new of the firm's connection to Russia.
Any notion that they profited from that scandal or would do so in the future is pretty absurd.
China is hostile. They're a military expansionist dictatorship who routinely expesses malcontent towards the USA amd allies. They would pay good money to fuck us over.
Yeah, Waterfox is just another browser built on top of the Mozilla's GECKO engine. But without all the AI dickriding.