Users can add features and change functionality in Songbird by installing extensions. Community coded extensions are available on Songbird's add-ons support page. Known community designed extensions are: Qloud Tagging & Search, eMusic Integration, iTunes Importer, iPod Device, Artist Tracker, Library File Organizer, Audioscrobbler Notifier, Wikipedia Artist Display, SHOUTcast Radio Directory, UnPlug, Adblock Plus (install.rdf must be modified), Taglib metadata handler and Minimize-to-Systemtray.Skins are referred to as "feathers" in Songbird.