Firefox Portable and Firemin - does Firemin break portability ?

ok, probably not the best title for the thread, but ....

I recently found out about a (freeware) program called Firemin that is supposed to reduce Firefox's memory use.

http://datum-forensics.com/2012/05/firemin/

and having tried it, it appears to work on Firefox Portable (15.0.1)

using Windows XP (SP3) Task Manager, with Firemin running my Firefox Portable VM Size is about 327,000K and the Mem Usage at 'idle' is about 2K and doesn't seem to get much over 35K when Firefox is active. (I'm pretty sure that is a good thing :-p)

I don't know if Firemin would be a candidate for a PortableApp (not 100% sure on the license and I could not get it to run off a USB drive - blocked for security reasons, I think), but I'm seriously considering adding Firemin to my computer at home.

I was wondering if anyone can tell/test if Firemin 'breaks' any of 'portability' for FF Portable? (and/or if it is worth using with FF Portable?)