I have no idea. What I'm saying is that it doesn't, in practice, actually matter for those companies, but it does matter for Mozilla. Let's say, hypothetically, the CEO of Apple|Microsoft|Oracle had donated to Proposition 8; that doesn't affect their ability to do their job, because their job has nothing to do with protecting the civil liberties of others. Those companies purpose is to turn a profit for their owners. That is outside of the realm of ethics; it is outside of the realm of what one perceives to be good or bad.

Mozilla, on the other hand, is an organization that is meant to protect people from oppression. For that reason, it is absolutely fundamental that a Mozilla leader have a provably clean civil rights record.

(and I'm pretty sure that Tim Cook doesn't oppose gay rights since he's openly gay.)