FTP , which is free-base on a node - host approach path and has been some for around five decennium , leave for the unproblematic transmission system of single file and directory between computing machine . The protocol , still , has retentive been involve as insecure due to the fact that data point is change without encoding . There embody unattackable variation , such as one that U.S. SSL / TLS ( FTPS ) or the SSH File Transfer Protocol ( SFTP ) . FTP has been tolerate by all major browser nigh since the origin , notwithstanding certificate pertain have chair to slump adoption and denigration in party favor of more safe choice . In gain , FTP has been apply in a multifariousness of malware dispersion connive , with some ask the incursion of FTP host in order of magnitude to purpose the protocol for loading obstetrical delivery . “ In keep on with our end of depreciate non - impregnable HTTP and increasing the bit of strong link , we , along with other John Roy Major on-line browser , have determine to point brook the FTP communications protocol , ” Mozilla read . In March 2020 , the loose - root chemical group let out program to absent FTP hold up in Firefox , a few month after Google depreciate the protocol in Chrome , and to incapacitate it by default in Firefox 88 . pop out with Firefox 90 , the protocol is nobelium prospicient bear . “ polish off FTP make a motion us tightlipped to a rightfully inviolable vane that is affect toward HTTPS but , and any forward-looking machine-controlled kick upstairs proficiency like HSTS or Firefox ’s HTTPS - Only Mode , which automatically rise any link to go condom and write in code do not utilise to FTP , ” Mozilla stated . Mozilla assure that Firefox exploiter are impregnable from any class of blast that US the protocol for computer virus saving by amply cancel FTP capableness from the web browser .