The other link discussion is focusing "terms of use" part, which requires at least some legal knowledge to understand - and there is a great discussion if this matters or not.
This submission is about very simple change in the website. While it is undoubtedly related to terms of use change, then changes are in the accessible English, and it is much easier to talk about. You don't need to know anything about US law to see how one day there was a promise and next day it is gone without trace.
I think that "no more promises" is very important by itself, and merging it with "tos" discussion will make it less visible.
> Mozilla doesn’t sell data about you (in the way that most people think about “selling data”)
> (CCPA) defines “sale” as the [...] in exchange for “monetary” or “other valuable consideration.”
> Whenever we share data with our partners, we put a lot of work into making sure that the data that we share is stripped of potentially identifying information, or shared only in the aggregate, or is put through our privacy preserving technologies
So... they are "sharing data with partners" + "in exchange for “monetary” or “other valuable consideration.”". Sounds like "selling data" to me, and I am not sure who are those "most people" who would think otherwise.
(the fact that the data is stripped from PII is nice, but does not really change much, it's still selling my data)
Like, for example, "we have this many users in this, that and that countries" - information which ads brokers might require to draw up a contract.
I suppose this is a change from the original "never and nothing" promise, but still a fair distance from the idea of selling of data that most people would imagine, like tracking and sharing your individual browser history.
[I guess I'm biased in favor of Mozilla. If they kick it, among full-featured browser engines only Chromium remains.]
And note that they don't tell anything about future or current data usage, they are just giving _examples_, which are, by definition, not the whole set. For all that I know they might be selling slightly stripped data already or plan to start very soon - the message does not contradict this.