I am not 100% sure but Firefox VPN is an actual VPN based on mullvad. On the main product page[1], it says it is built with Wireguard which is a VPN software.

I am not 100% sure but Firefox VPN is an actual VPN based on mullvad. On the main product page[1], it says it is built with Wireguard which is a VPN software. [1]: https://www.mozilla.org/fr/products/vpn/ https://www.mozilla.org/fr/products/vpn/