YouTube Center contains all kind of different useful functions which makes your visit on YouTube much more entertaining.
Use twitter right from the sidebar of Firefox as you browse the web. No need to go to twitter.com to send and receive tweets. Share sites as you browse with just a click. Send & receive tweets, dms, retweets, and more. Twitter timeline to go.
Collecties zijn groepen verwante add-ons die iedereen kan aanmaken en delen.Collecties verkennen