## Create a file named .mozconfig using notepad or someother editor and place it in the mozilla directory. The contents for this file can be obtained from the Configure Build FireFox Optionspage at the Mozzilla.org developer center[ http://developer.mozilla.org/en/docs/Configuring_Build_Options#Firefox_Optimized_Static]. The last line of the .mozconfig file disables the installer thus which will makes NSIS is not requiredunnecessary. If this line is missing or omitted then NSIS must be installed within it's own directory and not the bin directory. Which ## This must be added to the path.