diff --git a/mozilla/embedding/qa/testembed/Makefile.in b/mozilla/embedding/qa/testembed/Makefile.in
index ab4a54498b6..cf1f275b195 100644
--- a/mozilla/embedding/qa/testembed/Makefile.in
+++ b/mozilla/embedding/qa/testembed/Makefile.in
@@ -143,7 +143,7 @@ LDFLAGS += /HEAP:0x40000
 
 include $(topsrcdir)/config/rules.mk
 
-CXXFLAGS	+= /D "_AFXDLL" /D "USE_SINGLE_SIGN_ON"
+CXXFLAGS	+= /D "_AFXDLL" /D "USE_SINGLE_SIGN_ON" -DMOZILLA_VERSION=\"$(MOZILLA_VERSION)\"
 LDFLAGS		+= -SUBSYSTEM:windows
 
 libs:: testembed.htm
diff --git a/mozilla/embedding/qa/testembed/winEmbedFileLocProvider.cpp b/mozilla/embedding/qa/testembed/winEmbedFileLocProvider.cpp
index e6bc950f9df..d1219f13e0b 100644
--- a/mozilla/embedding/qa/testembed/winEmbedFileLocProvider.cpp
+++ b/mozilla/embedding/qa/testembed/winEmbedFileLocProvider.cpp
@@ -197,7 +197,7 @@ static char * GetGreLocationFromRegistry()
     // Please see http://www.mozilla.org/projects/embedding/MRE.html for
     // more info.
     //
-    strcpy(szKey, "Software\\Mozilla\\GRE\\1.3a");
+    strcpy(szKey, "Software\\Mozilla\\GRE\\" MOZILLA_VERSION);
 
     if (::RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_QUERY_VALUE, &hRegKey) == ERROR_SUCCESS) 
     {
diff --git a/mozilla/embedding/tests/mfcembed/Makefile.in b/mozilla/embedding/tests/mfcembed/Makefile.in
index aa83514499d..17e66a1e0fc 100644
--- a/mozilla/embedding/tests/mfcembed/Makefile.in
+++ b/mozilla/embedding/tests/mfcembed/Makefile.in
@@ -116,7 +116,7 @@ LDFLAGS += /HEAP:0x40000
 
 include $(topsrcdir)/config/rules.mk
 
-CXXFLAGS	+= /D "_AFXDLL" /D "USE_SINGLE_SIGN_ON"
+CXXFLAGS	+= /D "_AFXDLL" /D "USE_SINGLE_SIGN_ON" -DMOZILLA_VERSION=\"$(MOZILLA_VERSION)\"
 LDFLAGS		+= -SUBSYSTEM:windows
 
 libs:: mfcembed.htm
diff --git a/mozilla/embedding/tests/mfcembed/winEmbedFileLocProvider.cpp b/mozilla/embedding/tests/mfcembed/winEmbedFileLocProvider.cpp
index b66b0f58dc3..69f7f8533e4 100644
--- a/mozilla/embedding/tests/mfcembed/winEmbedFileLocProvider.cpp
+++ b/mozilla/embedding/tests/mfcembed/winEmbedFileLocProvider.cpp
@@ -204,7 +204,7 @@ char * winEmbedFileLocProvider::GetGreLocationFromRegistry()
     // Please see http://www.mozilla.org/projects/embedding/MRE.html for
     // more info.
     //
-    strcpy(szKey, "Software\\mozilla.org\\GRE\\1.3a");
+    strcpy(szKey, "Software\\mozilla.org\\GRE\\" MOZILLA_VERSION);
 
     if (::RegOpenKeyEx(HKEY_LOCAL_MACHINE, szKey, 0, KEY_QUERY_VALUE, &hRegKey) == ERROR_SUCCESS) 
     {