In filezilla latest version’s you may get an error “Directory listing failed” and this version’s will ask permission for FTP over TLS connection. To avoid FTP over TLS you just have to change a setting at site manager. follow the steps,
1. Open Filezilla. Click on File -> Site Manager
2. Click on New site and add Host Name and Port
3. Protocol : FTP, Encryption : Require Explicit FTP over TLS
4. Log on type Normal and put user and password.