Find Missing Firmware, load ROM that requires it

What steps will reproduce the problem?
1. Have Firmware missing that is critical for a game to work.  The FDS BIOS is 
a good option as it is required.  Or Super Gameboy.
2. Open an FDS ROM.
3. When Asked "Would you like to open the firmware manager now and configure 
your firmwares?"  Select, Yes.
4. Setup the FDS Firmware (make sure it's Green in the Firmware Dialog)
5. Problem

What is the expected output? What do you see instead?
I would like EmuHawk to be smart and recognize that I setup the missing 
firmware and I would like it to continue to play the game if I have 
successfully setup the missing firmware file(s) that are required.

Instead the Core is disposed after I close the Firmware Dialog.

What version of the product are you using? On what operating system?
r8215

Please provide any additional information below.
I am unsure if this is an Enhancement or Defect.

Original issue reported on code.google.com by hegyak on 20 Nov 2014 at 12:03

geovas01 / bizhawk

Find Missing Firmware, load ROM that requires it #317