mozilla isn't "shady". they have ventured into providing some optional 'paid' services so they can generate some revenue outside of their long-standing google deal to be the default search.. because if that deal disappears, so does the vast majority of their funding.

you'd have the same 'concerns' with any vpn provider.

afaik, mozilla just resells a branded mullvad service.

do you trust them? do you trust them more than google? apple? your telco or cable company or satellite provider? more than motorola, samsung, or other mass-market handset makers? you should. mozilla is on your side--the others? nope. not a one.

When someone shows you who they are, you'd better pay attention. ✊🏼