A short post for my colleagues at the customer support and anyone else wondering the same: how to turn off the FTP over TLS default in FileZilla?

  1. In the Site Manager entry for your server, set Encryption to ‘Plain FTP’.
  2. Since plain FTP is insecure, demand a fix from them.

Source: FileZilla Forums: Is there a way to turn off the TLS default in the latest Filezilla?