This is bonkers, utter insanity. Read defensively (which is the only safe way to read legal text), this renders Firefox unsuitable for any sensitive communication: prima facie, accepting this means I violate FERPA when I talk to my students via email through Firefox. Most likely health professionals would violate HIPAA by using Firefox in a similar manner. Furthermore, this has to violate at least the spirit of GDPR in the EU where I am located.

What is this absolute clusterfuck? No, I do not consent to any of that. Which, if any, update, informed me of this change in policy? And how on earth do my data, and which data, pass through Mozilla's servers?