Firefox 3.5 RC is the upcoming release of the new Firefox browser that offers many changes over its previous version including Private Surfing mode (implemented firstly in Safari, now in IE 8 and Chrome) for controlling your private data, Location Aware Browsing, new JavaScript engine TraceMonkey for better performance and more speed (you can certainly notice this), support for new web technologies, and more.

If you are using Firefox 3.5 beta or RC1 version, now you can upgrade it to RC2. You can download it for Windows, Linux and Mac from here (eng) or here for other languages.