FTP issue for chrome and lg g3 stock internet app topic

Hi !! I have a problem for ftp in chrome. Actually I don't have any problems I can download my phone but if the file is as a text it can't download it views in chrome but it can't install. On the other hand, stock internet app can't access for ftp. So stock app is unusable.
I am using this app i can acces all files from the computer to transfer but from the phone it doesn't.
Thanks for your advice.
And I wondered that if it is possible to have root acces from ftp via this app, how can I do that? (it doesn't important for me. Just want to know)