Thanks everyone for helping me out
This is what I saw even though I reinstalled Firefox
http://i30.tinypic.com/211qd1g.pngBut I fixed this problem
Actually I did the following to have Firefox 4 installed beside the stable Firefox
1. Create a folder for that version of Firefox, like maybe C:\Program Files\Mozilla\Firefox 3.6b2\
2. Extract the Zip file into the folder that you created,
3. Right-click the firefox.exe file and Send to > Desktop (create shortcut)
4. Create an empty folder where you want the new Profile for this version to be located, like maybe C:\Program Files\Mozilla\07-13-10\ to keep it near the Firefox program files. The name of that Profile would be 07-13-10.
5. Modify the Target line of the Desktop shortcut that you created like this:
~firefox.exe" -profile C:\Program Files\Mozilla\07-13-10 (there has to be a space between .exe" and -profile)
Then click apply.
6. Double-click that Desktop shortcut to launch the new version you just installed and a new Profile will be created upon Startup.
So, whenever I lauched my Firefox 4, it started with
http://files/Minefield/07-13-10And since, it is not a valid site, it was redirected to files.com
Thanks Again!