1 files changed, 8 insertions, 0 deletions
diff --git a/widget/GfxInfoBase.cpp b/widget/GfxInfoBase.cpp
index ae0878c757..ed47355367 100644
--- a/widget/GfxInfoBase.cpp
+++ b/widget/GfxInfoBase.cpp
@@ -1,3 +1,4 @@
+/* vim: se cin sw=2 ts=2 et : */
 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
@@ -645,6 +646,13 @@ MatchingOperatingSystems(OperatingSystem aBlockedOS, OperatingSystem aSystemOS)
   }
 #endif
 
+#if defined (XP_MACOSX)
+  if (aBlockedOS == OperatingSystem::OSX) {
+    // We do want even "unknown" aSystemOS to fall under "all OS X"
+    return true;
+  }
+#endif
+
   return aSystemOS == aBlockedOS;
 }