Firefox : How to set default page to open when opening new tab ?

Problem I am facing a problem when I open a new tab in mozilla firefox,  it is not opening the default home page which I have set in the Internet Options. Solution Type "about:config" in address bar and press enter. Click button "I 'll be careful". It will open the configuration parameters. Modify the URL for the property "browser.newtab.url" by right click.