Firefox 4 Beta 1 Portable Edition Download
Firefox 4 Beta 1 has just been officially released with many improvements, including a completely different interface design. You can download and install it to take a look at it yourself, but if you don’t want to install it, you can download the portable edition.
Firefox 4 Beta 1 Portable Edition has a larger size compared to the installer. It is available for download in numerous languages at PortableApps.
Download Portable Firefox 4 Beta 1 from hereLijit Search