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.
And be vocal about it! People are usually surprised in how I run services. Many many people won’t be able to, but many people can, so let them know they don’t have to be locked into paying for services.
For example “ugh Google, I hate paying for drive every month”
What do you use it for?
Why not just an external hard drive then, or there are more expandable options out there.