Help Make the Next Version of Firefox

Firefox 4 beta 3 is available recently,we can download it from Mozilla.Firefox is giving us better experience with the release of new version.So,what can we do to contriute to the development of Firefox?

In my opinion,the most realistic and inexpensive way to do that must be proving feedback,which is easy to achieve thanks to the Feedback Add-on .Once you have installed the Firefox 4 Beta, you will notice the Feedback Add-on in the upper right corner. You can use this to provide instant feedback at any time.