Extend Firefox 3 has wrapped up and we’re very excited to announce the winners! We received well over 100 entries, representing hundreds of hours of hard work from people around the world.

This contest had an extraordinary group of judges of which we would like to thank, including Dr. Jun Murai, Toby Padilla, Gina Trapani, Brendan Eich, Mike Connor, Mike Beltzner and our sponsors, including Last.fm, ActiveState, and VMWare.

Many of these extensions are in their early stages of experimental development, however we have seen some powerful new tools and prototypes that we are excited to share. It was hard to determine the winners, but at last, here they are.

Best New Add-on

Grand Prize Winners (3)

Pencil by Dương Thành An

GUI prototyping and diagramming that everyone can use.

The Pencil Project’s unique mission is to extend Firefox 3 to an opensource tool for making diagrams and GUI prototyping that everyone can use. Pencil makes uses of the SVG support in Firefox 3 to implement all the shape rendering and scripting.

Tagmarks by Felipe Tassario Gomes

One click bookmark tagging

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.

HandyTag by Rémi Szymkowiak

Automatic bookmark tagging

HandyTag simply providing a complete set of most relevant keywords in the bookmark’s edition panel. These keywords are retrieved from many different sources.

Runners up (6)

• Webchunks by Daniel Glazman – Firefox implementation of the Internet Explorer Webslices feature, plus more!
• Badges on Favicons by Pau Tomàs – Add informational badges to the tab favicons
• Devo by Abimanyu Raja – A command launcher for Firefox
• Close ‘N Forget by Benoit Bailleux – close the current tab and forget about the visit
• Callout by László Bácsi – Makes the notification services of the Operating System available for web pages and Greasemonkey scripts
• Reasy by Robert Hinchliff – An RSVP reader

Best Updated Add-on

Grand Prize Winners (3)

Read it Later by Nate Weiner

Save pages of interest for later reading

Read It Later allows you to save pages of interest to read later. It eliminates cluttering of bookmarks with sites that are merely of a one-time interest. Features include offline reading, sync between computers, and RSS feed creation.

TagSifter by Chiisai Tsu

Browse your bookmarks by their tags

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.

Bookmark Previews by John Marshall

Adds an album view and thumbnail view to the bookmarks manager

Along with an album view (like cover flow) and a thumbnail view (with drag and drop), this extension also adds previews to the tooltips in the bookmarks sidebar. Just hover over a bookmark in the sidebar to see the previews.

Best Music Add-on

Grand Prize Winner (1)

Fire.fm by Jorge Villalobos and Jose Enrique Bolaños

Direct access to the extensive music library on Last.fm

Listen to music related to your favorite artist, and discover new artists and music in the process. Listen to your friends’ favorite music. Find Last.fm users with musical taste similar to your own. Quickly access your favorite stations by just typing a few letters into the location bar.

We truly appreciate the efforts of all the participants and their support of the Mozilla Community! Thanks again for such a great contest!