GPC sounds cute but we all know companies will ignore it unti heads start literally rolling. It’s in their nature. Anyway, what do Tor Browser and Librewolf say about it? I could not find any reference in Librewolf site about GPC ,and it’s important to know if and how much does toggling the signal raise your fingerprint profile.

Just disallow cookies at visitation. No need to pretend to opt out.

“GPC is just going to be layered in on top of the existing consent-management platform,” Butler said. If a user sends a GPC opt-out request to a website through a browser but then engages with the provider on a different platform or on a system with a different configuration, “it can get legitimately confusing.”

No it doesn’t. I opted out. I never opted back in. Just because I stopped sending you the signal on one device doesn’t mean you get to start tracking me again. Turns out the only solution to your problem is to stop fucking tracking everything everyone is doing.

Selling personal data won’t stop until companies start getting fines that are a significant percentage of gross revenue and their executives start getting prison sentences for selling the data without explicit consent.