Can I use NordVPN app and NordVPN extension simultaneously?

It is not recommended to connect to both extension and app at the same time since it would create a double connection and can slow your traffic down.

However, if you want to use the NordVPN browser extension and app at the same time, you could exclude your browser app (e.g Chrome, Firefox, Edge) from VPN traffic on Windows OS split tunneling feature, connect to VPN on the NordVPN App and NordVPN extension at the same time.