Jetpack lets you build Firefox (and more!) extensions with the same skill-set you already know from building on the open Web: Javascript, HTML, and CSS. We've even got jQuery included by default to ease you into it.

Jetpack is a newly formed experiment in using open Web technologies to enhance the browser, with the goal of allowing anyone who can build a Web site to participate in making the Web a better place to work, communicate and play.

Briefly, Jetpack is an API that will allow you to build Firefox add-ons using only the web technologies you are already familiar with.

Requirements:

· Firefox: 3.5 – 3.7a1pre
· Thunderbird: 3.0b3 – 3.0

What's New in This Release: [ read full changelog ]

· Updated the Bespin component so that it now works with Windows and Linux.
· Added jetpackgallery.mozillalabs.com to the whitelist so we no longer see the big red box of doom.