Interesting new add-on for Firefox that sends your browser traffic through a VPN without the pain of subscribing to & setting up a formal VPN service. Also, it’s free (for now), though it’s only available to users in the US (for now).
That said, because the Firefox service only encrypts browser traffic, I’d still recommend an actual VPN service for people who travel and/or use public WiFi a lot. I use NordVPN and like it a lot.