We’ve put together a list of 30+ must-have Firefox 3 extensions that we know you’ll enjoy, whether you’ve upgraded to Firefox 3 and are looking for something new to add to your browser, or have yet to make the upgrade and are looking for a reason.

We cover everything from useful tools to social bookmarking and more. Let us know which extensions are your favorites.

* ColorfulTabs - Having too many tabs open can lead to a lot of confusion, but this extension will assign your tabs different colors so you can tell them apart easier.

* Adblock Plus - The popular, yet controversial extension has been updated to work with the latest version of the browser, and it’s still doing what it does best: blocking ads.

* ChatZilla - Add an IRC client to your browser so you can chat in it directly without having to open any other applications.

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