What to exclude while capturing Mozilla Firefox
While capturing Mozilla fire fox (pure EXE via install recommended few folders like syswow64 is captured it's necessary to include or exclude
It depends on the kind of files in the folder ofcourse.
But it looks like you are repackaging a 32 bit app on a 64 bit platform. Just repackage on a 32 bit system and then distribute to a 64 bit system. If your package is good on the 32 bit box the placement of 32 bit files on your 64 bit systems is managed automaticaly.