Advantages of mozilla firefox :
->  Available in a variety of OS platforms.
     This application is available for various 
     platforms, Windows, Linux and Mac 
     OS X
->  Standard Compliant
->  Have a maximum Tab 
->  Prevent the existence of phishing activity 
     to your computer
     Phishing is an attempt to steal a person's
     personal identity that you have that you
     usually put on the computer
->  Can be used as a Portable Application 
->  Many of the add-on that can be integrated
->  You can add a variety of add-on that will add to the functionality of firefox etc.

Ok, please download mozilla firefox on the link below.
Link : Mozilla Firefox 7.0