What, you ask, is Jetpack?
Right now, it's just an add-on for Mozilla Firefox. But it could also represent the future of browser-based extensions as we know it, depending on how much developers can twist and craft this new open framework to their advantage. Unlike normal Firefox add-ons, which require a decently skilled knowledge of Javascript and XUL, Jetpack add-ons use a combination of HTML, CSS, and Javascript to deliver new features and functionality directly through the browser. According to Mozilla, one could theoretically write an easy-to-use Jetpack add-on in "under a dozen lines of code." And the benefit for the casual Web browser? Jetpack add-ons promise universal compatibility with different versions of Firefox and, the kicker, require no browser restart to function.
Mozilla just launched the official gallery for this new framework last week. As you might expect, there aren't a ton of browser add-ons to play with. However, I'm going to take a look at five of the more innovative, interesting, and downright install-worthy of the Jetpack add-ons that are currently available in this week's freeware roundup. And remember--you can install and uninstall these add-ons without mucking up your browser session whatsoever, so feel free to be a Firefox Rocketeer and grab as many as you want to try out!
Read on for our picks!