The portable delete profile of installed version every time!! It's normal ?

This is the situation...... i have installed Firefox 64bit on c:\programmi\ etc .etc........ our profile it's normally in %APPDATA%\Mozilla etc etc.

For sometime i have an idea to setup an addiction version of Firefox and a idea to add a portable configuration..... i have download the 6.0.1 and i have "extracted" on D:\PortableApps\FirefoxPortable.

Apparently all it's work............. but there's a LITTLE trouble. Every time i run this portable setup i LOST everythings on the "installed" version..... because there's append ??

How i can fix ? Or How i can check on my current subfolder of portable edition ? I thinks the profiles can be stored in subfolders instead right ? Because all it's be saved on %Appdata% ?