From the new terms:
When you upload or input information through Firefox, you hereby grant us a nonexclusive, royalty-free, worldwide license to use that information to help you navigate, experience, and interact with online content as you indicate with your use of Firefox.
Looks like FF is on track for enshittification, I (unfortunately and with great sadness) called it last year (and was downvoted for it lol)
It’s long past time to burn the bird again. Mozilla, the organization, has been stumbling around with its pants on its head for a while. But this? Jesus fuck, there’s nothing I hate more than ‘by doing X you agree to Y.’
Zero information I “input through Firefox” should make it back to Mozilla. Zilch! Not one byte! It’s my computer, running my copy of this FOSS software, talking to a server that’s none of your goddamn business.