If you are getting error “failed to retrieve directory listing” so you need to follow below steps:

Go to Edit->settings->Click on FTP->Choose Passive->Click on ok.
Go to File->Site Manager->click on New Site
Go to General->Host=domain Name, Protocol=FTP, Encryption=Only use plain FTP, user AND Password
Go to Transfer->choose active->click on connect

Hope above tips will help you to access website files from filezilla.