CCK Wizard Beta for Firefox 4

Update: Beta 2 available to fix a bug with adding prefs

Have you ever needed to customize Firefox for deployment with in your organization or even to your family? That's what the CCK Wizard is all about. It allows you to create an add-on that customizes Firefox. You can learn more about what it does at

I've recently updated the CCK Wizard for Firefox 4 and have made a beta available. You can click here to install it. Once everything looks good with the beta, I'll put it on AMO.

So what's the future of the CCK Wizard?

Running Add-on Code at First Run (and Upgrade)

Running code when your add-on is first installed or upgraded is pretty common. You might need to install a toolbar button or display a web page. I've seen a few different ways to do this, so I thought I'd show how I do it in my add-ons.

The best way to demonstrate this is with some sample code. I'll make some comments on at the end.