Fixefox is launched but not able to navigate to any URL using testcomplete

Also, check for the patches in the link: https://support.smartbear.com/testcomplete/downloads/firefox-patches/

But, I don't see patch provided for the version which I am using.

Additional Info: Tried to record the script and the code is generated in the below format.

I am trying to give URL: https://smartbear.com/, but it's taking as blank.

function Test3()
{
Browsers.Item(btFirefox).Run("about:blank");
}

Any suggestions would be of great help!

Regards,

Nandini.