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Jetpack 0.4, now with audio recording and page mods
Jetpack is Mozilla's new favorite power tool for customizing the browsing experience. As Lee has explained here on Download Squad, Jetpack makes creating Mozilla add-ons easier, allow developers to build using HTML, CSS and Javascript. The latest Jetpack release, 0.4, includes APIs for audio recording and encoding, as well as a page modification API.
Audio can be recorded directly to Ogg-Vorbis, which is the sound format of choice for Firefox 3.5's audio tag. That means you can allow recording and embedding, straight from the browser and all within Jetpack's APIs. There's a voice memo demo you can check out to get an idea of the way these features can be useful.
The page mod API makes it easy to implement Greasemonkey-style modifications to web pages. Some code examples are posted, including a little page mod that blacklists a site for a set amount of time to deter proscrastination.
