diff --git a/MdePkg/Include/Protocol/FormBrowser2.h b/MdePkg/Include/Protocol/FormBrowser2.h
index 934f88d316..976ffb8a7c 100644
--- a/MdePkg/Include/Protocol/FormBrowser2.h
+++ b/MdePkg/Include/Protocol/FormBrowser2.h
@@ -59,6 +59,10 @@ typedef UINTN EFI_BROWSER_ACTION_REQUEST;
 #define EFI_BROWSER_ACTION_REQUEST_RESET  1
 #define EFI_BROWSER_ACTION_REQUEST_SUBMIT 2
 #define EFI_BROWSER_ACTION_REQUEST_EXIT   3
+#define EFI_BROWSER_ACTION_REQUEST_FORM_SUBMIT_EXIT  4
+#define EFI_BROWSER_ACTION_REQUEST_FORM_DISCARD_EXIT 5
+#define EFI_BROWSER_ACTION_REQUEST_FORM_APPLY        6
+#define EFI_BROWSER_ACTION_REQUEST_FORM_DISCARD      7
 
 
 /**
diff --git a/MdePkg/Include/Protocol/HiiConfigAccess.h b/MdePkg/Include/Protocol/HiiConfigAccess.h
index 0a8cccc89e..12d6f815f1 100644
--- a/MdePkg/Include/Protocol/HiiConfigAccess.h
+++ b/MdePkg/Include/Protocol/HiiConfigAccess.h
@@ -34,6 +34,12 @@ typedef UINTN EFI_BROWSER_ACTION;
 #define EFI_BROWSER_ACTION_RETRIEVE   2
 #define EFI_BROWSER_ACTION_FORM_OPEN  3
 #define EFI_BROWSER_ACTION_FORM_CLOSE 4
+#define EFI_BROWSER_ACTION_DEFAULT_STANDARD      0x1000
+#define EFI_BROWSER_ACTION_DEFAULT_MANUFACTURING 0x1001
+#define EFI_BROWSER_ACTION_DEFAULT_SAFE          0x1002
+#define EFI_BROWSER_ACTION_DEFAULT_PLATFORM      0x2000
+#define EFI_BROWSER_ACTION_DEFAULT_HARDWARE      0x3000
+#define EFI_BROWSER_ACTION_DEFAULT_FIRMWARE      0x4000
 
 /**