I see a mention of what differentiates Jetpack: No, that’s not correct. Jetpack has access to the browser chrome - that is, the stuff surrounding the page you’

I see a mention of what differentiates Jetpack: No, that’s not correct. Jetpack has access to the browser chrome - that is, the stuff surrounding the page you’re viewing - with simplifying APIs wrapping the more complex native APIs add-on developers usually deal with. This is about more easily authoring Firefox add-ons, not just tweaking page content. http://www.techcrunch.com/2009/05/20/strap-in-mozillas-jetpack-may-be-the-next-step-in-browser-extensions/#comment-2758706 http://www.techcrunch.com/2009/05/20/strap-in-mozillas-jetpa... [Edit: citation] I still think adding that to Greasemonkey would have been more productive. It sounds like Jetpack users run Firebug just like Greasemonkey users do, so I don't see the added value.