It’s been here since more than a year. https://blog.mozilla.org/en/mozilla/firefox-androids-new-privacy-feature-total-cookie-protection-stops-companies-from-keeping-tabs-on-your-moves/

It’s there on mobile. Check the details tab in tracking protection. You should see it mentioned there.

They said PWA. Chrome and Chrome like browsers can install pwa as native apps, aka webapks on your android. Firefox can only add a shortcut where sites can run full screen.

That €20 is for remove ads. Update the app and check the sidebar

They won’t need too. Chrome is the standard.

Firefox could get litigated for ad fraud and these trusted 3rd parties could block firefox from accessing the sites. It won’t work.

Youtube premium, Netflix and Amazon prime.