Firefox 4 Beta 1 has been released. And as we have expected, it is better than the previous versions. But it is not yet that stable so the feedback button is still fixed in the browser. We can help Mozilla by using the beta version and sending feedback to them.
You can view screenshots of Firefox 4 Beta 1 below. How does it differ from the previous versions? The question can be answered at the bottom part of this page.
Screenshots of Firefox 4 Beta 1
Features of Firefox 4 Beta 1