Mozilla Extend Firefox Grand Prize Award Winners - http://blog.mozilla.com/extendfirefox/ Judged by: Garrett Camp, Brendan Eich, Jesse James Garrett, Joshua Schachter, Gina Trapani, etc
When you find something on the web that you want to view later, put it in Pocket. It automatically syncs to your phone, tablet or computer so you can view it at any time, even without an internet connection.
Shareaholic is the easiest way to share & bookmark great content from anywhere on the web from one simple ALL-IN-ONE add-on. Works with Facebook, Twitter, Pinterest, Google, LinkedIn, E-mail and 200+ additional services.
Pencil is a Firefox add-on to do GUI prototyping and simple sketching
Bookmark Previews adds an album view and thumbnail view to the bookmarks manager.
HandyTag simply providing a complete set of most relevant keywords in the bookmark's edition panel. These keywords are retrieved from many different sources.
This add-ons adds a set of icons to the quick bookmarks, allowing you to quickly add tags to your bookmarks by clicking on each icon.