There is a glut of VPN providers out there, including Firefox's own. I have had nothing but success with Proton's VPN service. Is it better than the others? I have no idea. The UI can be a little overbearing, especially on the mobile app, but its core functionality is solid.

fast and secure - recommend it

nice

Great features. Sometimes the UI can be unstable and it lacks features that you get from standalone vpn application but I do like that it only really needs to be on top of my web browsing rather than all my traffic. I'd like to see profiles added to the extension as maybe an easy feature that the extension is lacking.

Funciona muy bien. simple, ágil y seguro

We want a lifetime package for Proton VPN.

its fast and secure

Works fasts and offers real privacy. Be aware, it requires an account to function, as stated in the description.