Nobody will write a *web* browser so that you could transfer FTP files over a LAN.
How stupid can you be, for fuck's sake? Just use any of the programs you already have installed.>Encryption in that case is not only useless but just a waste of energy.
This is such a dumb argument. Avoid a bus trip and walk to the store – here, you just saved all the energy you'll ever "waste" with encryption in your entire useless life.