Firefox

You do not need to give Firefox or Mozilla permission to “do” anything when you simply navigate to a website or perform a search, because the only entities involved in that transaction are yourself, your ISP and the website. NOT Mozilla.

Again, as I've already pointed out this is not correct. You don't interact with websites directly; you interact with them through your web browser.

To be super clear here: Yes, Firefox as an installed application has complete and total access and permission on anything you ever do or say or send, and always has done since day 1. And that is absolutely fine, because that data did not go back to Mozilla.

Except you don't know that. You can't say what expectations you might have had with whatever data you provided because there was no policy published to say what Mozilla might have done with it. Now, there is.