The W3C standard makes this statement:
If an element permits content (e.g., the div element) but an instance of that element has no content (e.g., an empty section), DO NOT use the "minimized" tag syntax (e.g., <div />).
It would seem that this syntax violates the standard and is unexpected in Firefox. It serves no purpose in the file and should be removed. why would you specify a null script? The minimized tag syntax is specific for items that have on content and must only be used for those forms.
I believe you should forward your findings to bain for correction. Both errors.
Dale