Ledger Hardware Wallet not connecting

Hi, I have installed Metamask extension on Firefox. When I try to connect to my Ledger Hardware Wallet, my Ledger Nano S is not detected, however properly connected through Usb and opened up to the Ethereum app.
Any help would be appreciated.
Previous to my debian KDE plasma install, I had windows on this laptop and Metamask did recognise ledger usb ( so the usb port is working).