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 interesting links using Facebook, Twitter, Google Mail, Reader, Bookmarks, Evernote, Bitly, StumbleUpon, and more... from one simple ALL-IN-ONE add-on. This is the ultimate tool for the link sharing addict!
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.
Firefox 3 lets you tag your bookmarks, but it doesn't give you a great way to browse your bookmarks by their tags. TagSifter tries to. Select a group of tags in the sidebar or menu, and TagSifter shows you all the related tags and bookmarks. Or searc...
HandyTag simply providing a complete set of most relevant keywords in the bookmark's edition panel. These keywords are retrieved from many different sources.