Functionality is mostly smooth and good, except for a few pages where user/pw fields are not correctly detected. An autosave-option for passwords created but not saved would be great. My main point for criticism is that the only ways to lock the addon are to either use an (only) 6-digit PIN, or to entirely log out of the proton account. I guess that the former option was provided to allow quick access, however, it is very unsafe in my opinion - I would prefer to have the choice to use e.g. longer PINs or an aaddon-password, etc. ...