Everyone is right to complain about these terms. Why can't Mozilla just make software that doesn't collect user data at all? How hard is that?

However, I have a feeling that many of those complaining have never read the Windows EULA and all the other legal bullshit included by reference. The extreme disregard for personal privacy, as well as proprietary business data expressed in those documents is appalling. If more people read them, Microsoft would go bankrupt.