Much to my surprise, this actually works and works well. Split tunneling (disable VPN by domain) is working. If you are a NordVPN client, I recommend this extension.

Nord is the best VPN I've used to date. Its Threat Protection is great too — very well rounded service.

It's OK as extension, but in the desktop version is more robust and surely much more secure since the "kill switch" runs all the time in the background as a service of the system. Thus... in case of any interruption or break of the VPN then instantly internet connection is cut-off. No way for your real IP to be exposed. Obviously it is a paid VPN because nothing real good is for free.

Fast and secure vpn

It has a setting to "auto-connect" which it repeatedly turns off. So if you're not paying attention you can find yourself exposed when it has disabled the auto and not bothered its ass engaging the VPN, as such it becomes a bit of a security risk.

Excellent VPN.

Used on an Arch Linux desktop, dual-boot (linux/Windows laptop & Windows laptop - install and forget.

works good, very convenient plugin.