"Regardless of Firefox abiding by the standards (or doing what Chrome does) or not, this was always going to be the case, and so it isn't that big a deal." The

"Regardless of Firefox abiding by the standards (or doing what Chrome does) or not, this was always going to be the case, and so it isn't that big a deal." The "dealedness" of this isn't a binary. One may tolerate a small amount while rejecting a large amount. I point this out more to put the idea out there (it's an important concept even in your day-to-day job) than because I disagree with the main thrust being made here; as a uMatrix use I traded security for a functional web a long time ago. Breaking trackers is a feature, not a bug, for me. If that breaks your website, goodbye.