Doesn't autofill on Firefox, nor does Firefox show that the app is signed onto or in use. Making this nearly as useless as Nord VPN -- had contact with their support staff. Again, completely nonfunctional expensive junk. Doesn't work at all. Nothing they do can fix it. Reading other reviews, the crap app has had problems with Firefox from the start. NordPass and NordVPN has ripped me off for the last. They're out at end of contract. DON'T BUY THIS CRAP.