The whole thing confuses me is that why would Firefox as an browser (user agent) need that legal jargon to work. Hopefully Legal Eagle or similar channels would cover this, but they are too busy with politics at the moment?
Well, no, see that's a great example of why this is a problem. If Intel sells you a CPU, it doesn't need a license to your data, because you give your data to your CPU in your computer. It would, in fact, be a huge red flag if Intel suddenly wanted a license to process your data, because they only need that if they're sending your data to them for processing.
(IANAL, corrections welcome if you can actually point to a law that says otherwise)