1 files changed, 0 insertions, 10 deletions
diff --git a/dom/media/platforms/wmf/WMFUtils.cpp b/dom/media/platforms/wmf/WMFUtils.cpp
index 8aec8a8af..208131fef 100644
--- a/dom/media/platforms/wmf/WMFUtils.cpp
+++ b/dom/media/platforms/wmf/WMFUtils.cpp
@@ -205,16 +205,6 @@ LoadDLLs()
 HRESULT
 MFStartup()
 {
-  if (!IsVistaOrLater() || IsWin7AndPre2000Compatible()) {
-    // *Only* use WMF on Vista and later, as if Firefox is run in Windows 95
-    // compatibility mode on Windows 7 (it does happen!) we may crash trying
-    // to startup WMF. So we need to detect the OS version here, as in
-    // compatibility mode IsVistaOrLater() and friends behave as if we're on
-    // the emulated version of Windows. See bug 1279171.
-    // Using GetVersionEx API which takes compatibility mode into account.
-    return E_FAIL;
-  }
-
   HRESULT hr = LoadDLLs();
   if (FAILED(hr)) {
     return hr;