Firefox also cares about profit (the Mozilla Corporation makes Firefox and is a for-profit entity), that’s why they take that money from Google, try to get people to pay for email aliases and VPN, etc.

That does seem a lot better to me than crypto and ad networks.

Afaik the focus is repairability and sustainability, not privacy.

None with the same set of features out there afaik. I use uBlock Origin with dynamic filtering.

Just in case you didn’t know, umatrix development ended 2 years ago and there are unpatched vulnerabilities :(