I would think about it a little differently. What are the incentives we have to do the right thing? Those incentives aren't just limited to business issues. Mozilla Corporation is a public benefit company. We do not have a set of stockholders for whom we need to maximize revenue. That's a critical component of why, in the end, we make the decisions that we make.
We also have a user base that really cares about its privacy, and a set of developers who work with us who also care a lot about its privacy. That factor really influences our decisions.
In the end, one of the biggest challenges we face as an industry is that, thus far, not enough of the user base really makes decisions based on its privacy. That is a little less true of us, because we have a user base that I think has demonstrated, through using Firefox, that this is something it cares about. In the rest of the industry, that hasn't proven to be the case thus far, and we might be at a tipping point where it might be changing. I think we'd all like that to change.
However, regarding the incentives for a company such as Facebook, until Facebook users really demand something better, it's going to be hard for Facebook to deliver something better in terms of privacy. Our users do demand something better. They expect something better, and that allows us to deliver that.