diff --git a/modules/plugin/base/src/nsPluginHostImpl.cpp b/modules/plugin/base/src/nsPluginHostImpl.cpp
index 341a89bf76b..d3fb9d20a0c 100644
--- a/modules/plugin/base/src/nsPluginHostImpl.cpp
+++ b/modules/plugin/base/src/nsPluginHostImpl.cpp
@@ -3824,19 +3824,13 @@ static PRBool isUnwantedPlugin(nsPluginTag * tag)
 
     if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"application/x-director"))
       return PR_FALSE;
-
-    // these are Quicktime-only types so that wav and midi will register indirectly
-    if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"image/x-quicktime"))
-      return PR_FALSE;
-
-    if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"image/x-macpaint"))
-      return PR_FALSE;
-
-    if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"video/quicktime"))
-      return PR_FALSE;
-
   }
 
+  // On Windows, we also want to include the Quicktime plugin from the 4.x directory
+  // But because it spans several DLL's, the best check for now is by filename
+  if (nsnull != PL_strcasestr(tag->mFileName,"npqtplugin"))
+    return PR_FALSE;
+
   return PR_TRUE;
 }
 
diff --git a/modules/plugin/nglsrc/nsPluginHostImpl.cpp b/modules/plugin/nglsrc/nsPluginHostImpl.cpp
index 341a89bf76b..d3fb9d20a0c 100644
--- a/modules/plugin/nglsrc/nsPluginHostImpl.cpp
+++ b/modules/plugin/nglsrc/nsPluginHostImpl.cpp
@@ -3824,19 +3824,13 @@ static PRBool isUnwantedPlugin(nsPluginTag * tag)
 
     if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"application/x-director"))
       return PR_FALSE;
-
-    // these are Quicktime-only types so that wav and midi will register indirectly
-    if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"image/x-quicktime"))
-      return PR_FALSE;
-
-    if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"image/x-macpaint"))
-      return PR_FALSE;
-
-    if(nsnull == PL_strcasecmp(tag->mMimeTypeArray[i],"video/quicktime"))
-      return PR_FALSE;
-
   }
 
+  // On Windows, we also want to include the Quicktime plugin from the 4.x directory
+  // But because it spans several DLL's, the best check for now is by filename
+  if (nsnull != PL_strcasestr(tag->mFileName,"npqtplugin"))
+    return PR_FALSE;
+
   return PR_TRUE;
 }