Why firefox is said to have more security than IE ?

People always say that firefox is more secure than internet explorer, I am using norton internet security 2006 and IE as browser. Doesnt that mean that i am secure ?

Why firefox is said to have more security than IE ?microsoft excel

Firefox-

-Blocks pop-ups

-Checks Security Certificates of websites

-Warns you about malicious activities

-has Tabbed view

IE doesn't have all those features.

Why firefox is said to have more security than IE ?microsoft updates internet explorer

Your secure but you have to setup your security in IE and fire fox will set all by it self and the other thing is the new look of Fire fox and some cool way to browse so that makes fire ox better then IE.
In my own opinion, FireFox is more secure and more user-friendly.

Too much trouble with IE