I will have a look at the profile managers, that might be quite useful for now, thanks for the tips; As for the "unique device id", you can check it here where

I will have a look at the profile managers, that might be quite useful for now, thanks for the tips; As for the "unique device id", you can check it here where they also describe how to turn it off in Firefox: https://browserleaks.com/webrtc https://browserleaks.com/webrtc