The developers of Chrome browsers have announcedthat you want to remove support for File Transfer Protocol (FTP). FTP is barely used and then mostly without encryption or authentication.
Loud Statistics from Chrome use less than 0.1 percent of users FTP in the browser. For a while, browser manufacturers say goodbye to FTP. For example, Chrome does not render content anymore when loaded from FTP URLs and blocks FTP URLs that are included by other sites, such as images.
FTP with TLS was never supported in browsers
In addition: Although there is theoretically TLS support for FTP, but browsers have never supported this. Therefore, FTP downloads via the browser are always manipulable. For example, a man-in-the-middle attacker could replace it with malware by downloading a software.
In the past, FTP was a popular method for software downloads, but HTTPS has now become widely accepted as an alternative. For example, the Linux kernel developers shut down their FTP server more than two years ago.