The Privacy Notice doesn't say anything problematic at all, why is everyone acting like Mozilla is going to be feeding every keystroke into a database/AI? It's just saying that they're allowed use your inputs to browse to the sites you've asked for, and to give the form data/uploads/mic/whatever to the sites you're using.
A few words cherry picked from the middle of a sentence isn't how legal stuff works.
My pleasure! Answering your question is a good motivation to actually document my setup.
Also, if you're moving configs over, you might find podlet useful.