This batch script is nothing more than a simple pass of command arguments to firefox to open a web page with whois data. Modify as needed.

Code:
@echo off
 setlocal

:Check_Program_Path
if exist "%ProgramFiles%\Mozilla Firefox\firefox.exe" goto :Check_Command_ARG
goto :ERROR_1

:Check_Command_ARG
if [%~1]==[] goto :ERROR_2

:: ELSE---
:Set_VARS
set FireFox_and_Check="%ProgramFiles%\Mozilla Firefox\firefox.exe"
set Address=http://whois.domaintools.com/%~1

:Run_FireFox_DirectPage_2_IP_LookUp
Start %FireFox_and_Check% %Address%
goto :EOF

:ERROR_1
echo.FireFox.exe was not found in your path!!!
goto :EOF

:ERROR_2
echo.No Address was specified!!!
echo.
echo.USAGE: %~0 google.com
goto :EOF