I think they could do worse, strategically, than take a strong, consistent stance throughout their product(s) and communications, to make Mozilla the browser and email client of choice for those who don't want to leave a huge slimy trail of cookies and web bugs for anyone who's interested to track.
Worth noting this is not saying that either Safari or Chrome are worse browsers in general, or that they have security holes to feed the NSA machine - but any piece of data that a US company has about you is a piece of data that could be passed to the NSA under a FISA order, or even a future law change a decade away from now.
The fewer of those pieces of data you create, the better, imho.