Type the URL “
https://addons.mozilla.org/en-US/firefox/addon/2221 ” in the browser and
download the Firefox add-on to your computer.
Restart Firefox
After restarting, go to tools optionsMain tab
In this tab—you have “Add-ons”- click on “Manage Add-ons”
Go to “New tab Urloptions” ------- Set default Url as
WWW.GOOGLE.COM
Save and exit.