If you are Firefox addicted like me, then you must try Firefox 4 RC (Release Candidate). Direct download link is here.
Apart from the all new look and feel the page loading is much faster then the previous versions.
But as it is not the stable version, their are certain bug in it. Like
- Some old plug-in might now work. For me the Kaspersky URL advisor is not working.
- You might get trouble while opening pdf files and watching online videos.
If you face any problem inform to firefox team. just navigate to help –> Submit feedback section.