Image Execution Control/My Own Safe Files is broken

When I put firefox.exe or firefox folder in the safe file list, when I run firefox, but I still get alerts about firefox.exe trying to access protected objects. If I manually add firefox.exe as Trusted Applications in Computer Security Policy, I do not get D+ alerts and firefox runs properly. Therefore, My Own Safe Files list doesn’t work as claimed - "Files added to this area are automatically given Defense+ trusted status.

I need someone to confirm this issue. When you try to confirm this, please be sure the executable you are testing is not listed in Computer Security Policy and All Applications rule is removed from the policy as well.

If you think I should get alerts even the executable is in safe list, then please tell me what does “trusted status” mean.