2. Enter the command gconftool --type=bool --set system/gnome-vfs/use-http-proxy "TRUE"
3. Enter the command gconftool --type=string --set /system/gnome-vfs/http-proxy-host "your-proxy-url"
4. Enter the command gconftool --type=int --set /system/gnome-vfs/http-proxy-port "8080"