I was looking for the same thing for my 2010 FX. Come to find out, the 2010 FX has a cargo mat either with or without a cargo box.The total for both is $225 on my invoice. It is called a "cargo organizer and protector". There is no factory rubberized mat. The factory protector is a close woven mat which works well but will not take spills and grime well especially if you have the light camel interior. I took out the cargo organizer (it attaches with some clips) and left the protector. I think the organizer which folds flat still protrudes and it is completely useless. I have carried garden supplies and the factory woven mat is easy to take out and clean but it is not rubberized.
There are a couple of places with rubberized mats like
http://www.jcwhitney.com/cargo...58625
which appear to be customized to the second gen FX but with shipping they are all about $150. I would suggest one of these if you didn't spend the $225 for the factory protector and organizer. Good luck!