*. Supports both HTTP and FTP protocols.
*. Download your files faster than the ones that comes with web browsers (300% times faster!).
*. Resume, Pause, Stop downloads.
*. Easy to use GUI.
*. Set automatic sound notifiers.
*. Manually change downloading speed limits, etc.
If you use Ubuntu then you can easily install Downloader for X by entering the below command in your Terminal window.
sudo apt-get install d4x