Here's the clarification from Mozilla:
We need a license to allow us to make some of the basic functionality of Firefox possible. Without it, we couldn’t use information typed into Firefox, for example. It does NOT give us ownership of your data or a right to use it for anything other than what is described in the Privacy Notice.
The new policy merely allows Firefox to function as it always did, to help users visit web pages, allow the browser permission to store your personal information such as form data, or to access a file that you wanted to upload to a website.Just say why and be done with it.
What is the legal meaning of “full”?
Surely I only want to grant a limited non-exclusive licence where the limit is for the use of the browser and the expiry is immediately after I stop using the browser.
Firefox is being enshittified.
The onus is on them to use clear phrases. A dialogue would be alright (We meant... You interpret... Let's rephrase...). But single-handedly blaming the other side? Considering that amount of backslash? That's nothing but lame.