how to make an add-on compatible with Firefox 3 Beta?

At the time of testing for the first time the new beta version of Firefox 3 I loved especially for the speed and that made a big difference, but what made me think twice is that the add-ons did not work beacuse they were not compatible with this beta verion, but I found a way to make almost all my add-ons compatible simply using another extension.

This extension is Nightly Tester Tools, this extension will be able to run your add-ons again in Firefox 3 beta. Obviously not all the add-ons are going to be compatible, but most of them.

With this extension we have everything to make Firefox 3 beta our default browser.