Acessando o 4shared via webdav

Follow the instructions to set up WebFolder in Linux

Go to "Places" -> "Connect to Server..."
Choose "WebDAV (HTTP)" from the Service type drop list
Enter "webdav.4shared.com" in the Server input box
Click "Connect"
Enter username and password in the next dialog.

Source: http://www.4shared.com/faq.jsp#q36