Firefox as main browser

Go to Tools Menu, Select Options. Under Main tab, check the bottom corner. You will see a Check Now button. Click on that button and select Yes. That should make FireFox your default Browser. :)

As Shuja has pointed out, you can set Firefox to your default browser. No matter what, you can't delete Internet Explorer. It is built into Windows since Windows 95. Explorer.exe is the same thing as Internet Explorer.exe with a few minor variations.
As a matter of fact, as pointed out in the post above this. Explorer.exe does work as Internet Explorer too. Just open the Explorer and in the address bar type www.google.com and you will see that the explorer turns into an internet explorer.

Hey David. I did notice that behavior few times and was surprised to see that the sites open in IE rather than FF.

Thanks a lot fellas, much appreciated. :cool:

As Shuja has pointed out, you can set Firefox to your default browser. No matter what, you can't delete Internet Explorer. It is built into Windows since Windows 95. Explorer.exe is the same thing as Internet Explorer.exe with a few minor variations.
Since Windows 98.
Windows 95 explorer had no IE in it!
Nevertheless, IIRC, some components of IE can be removed from Windows 98, but not all.