Add-ons have always been important to Mozilla, and they're one of the big reasons a lot of users decide to browse with Firefox.

We've seen a number of innovations recently, like Jetpack and the introduction of Collections (don't forget to check the Downloadsquad Collection out if you haven't already). Mozilla's never been content to sit still - which is why they're always encouraging the community to get involved.

Take the Extend Firefox 3.5 challenge, for example. If you can come up with a creative, innovative, or just plain cool, you could just win yourself a MacBook Pro - or one of several other kick-ass prizes.

Last year's winners included Pencil and Read It Later. Who knows, your creation could very well take the blue ribbon this year!

The contest runs through October 2nd, so get cracking!