Wish I had seen your comments previously!
yoasif
I agree - so the question is if anything changed -- Mozilla has said that they are just clarifying their existing usage of data. Hence my read. Yes, this implies that Mozilla was previously deceptive and is being more transparent today, but that is also what they are saying.
If you disagree, I'd be curious to see where we see that Mozilla has explained that the new Privacy Notice is describing new practices by Mozilla rather than a clarification of their existing practice -- basically, why do you believe that.
I'm a little confused about where we disagree - but it might make it simpler to clarify that I said "shared", not sold. That seems to be exactly what they are saying in the privacy notices from both 2017 and today.
Whether it was sold and what that entailed isn't something we're going to be able to know without Mozilla telling us.
You have to remember that sometimes when that shiny new CSS feature comes out, it is underspecced, with unhandled corner cases -- "just do what Chromium does" is not a standard -- or is it? Having multiple implementations of a spec prove that it is interoperable - without that, you might have a good spec, or you might have a spec that says "whatever Chrome does is what is expected". Not sure that is what we want from new CSS (or any) features.
I actually wanted to help make Firefox a better product. 🤷