Firefox’s free VPN will offer 50 gigabytes of monthly data, which is pretty generous for a browser-based VPN. A Mozilla account is required to make use of it, which isn’t a hardship (they’re free), but is a point of friction some may wish to know upfront.
It depends on the country you are living in. There are plenty of people with restricted and surveilled internet.
Sure, but do you think they’re going to allow Firefox if it comes with a built-in VPN?
Texas and Florida haven’t banned it yet.