Firefox

If the concession removes somebody's privacy, it is a privacy invalidating concession. Your definition not mine

Software running on my computer, should be my agent, representing my interests, and if I just want to display data transmitted over the network, and not send any data back, that should be within my explicit control. Not even talking about privacy, talking about agency.

If open source software, written by a non-profit, wants to violate my agency with opt outs rather than explicit consensual opt-ins. At the very least it's not respecting my privacy, and at worst it's trying to lie to me, remove my agency from my own devices.

You can say there's a social contract, that people online have to feed the advertising machines, and I'm happy to debate you about that. There is utility there for sure, but saying you're an extremist if you don't want to participate is also an extreme position. And I don't think it's reasonable