Youtube to MP3 Converter which places an "MP3 it" Button on Youtube Video Pages.
With Just One Click, A New Tab Loads without Disruption of your viewing Experience Where you can Downloaded your Converted 256k MP3 File.
Adds download link/button to all soundcloud tracks.
AddThis for Firefox is the best add-on to make sharing and bookmarking simple. Have all your favorite web 2.0 social networking, bookmarking, blogging, and e-mail services at your fingertips. Share any page, anytime, with anyone.
Facebook Messenger lets you bring a Facebook Messenger right into your browser to chat with your friends.