Jetpack

A recent project over at Mozilla Labs, has recently grabbed my attention and hasn't quite let go yet. It's a very interesting concept: Allow people to create simple extensions to the browser using web languages (HTML, CSS, and JavaScript). In effect, allowing extensions to be built by people without knowledge of more complex programming languages. The effect? More useful extensions with a much lower footprint.

One extension that I've admired for quite some time now is GMail Checker by James Nisbet. What it does is quite simple, but yet it replaces another addon I used to use (GMail Manager). What's even more amazing is that it's programmed in CSS, JavaScript, and HTML, which means it's very lightweight. As of its latest version, it also has support for Google Apps hosted e-mail.

I think everyone should head over to Jetpack.MozillaLabs.com and watch the video about it, which explains the extension a little bit better.