--- a/dom/media/platforms/wmf/WMFVideoMFTManager.cpp
+++ b/dom/media/platforms/wmf/WMFVideoMFTManager.cpp
@@ -158,16 +158,18 @@ struct BlacklistedD3D11DLL
   DWORD ls;
 };
 #define DLLVER(a, b, c, d) \
         ((DWORD(a) << 16) | DWORD(b)),  ((DWORD(c) << 16) | DWORD(d))
 static const BlacklistedD3D11DLL sBlacklistedD3D11DLL[] =
 {
   // Keep same DLL names together.
   { L"igd10umd32.dll", DLLVER(9,17,10,2857) },
+  { L"isonyvideoprocessor.dll", DLLVER(4,1,2247,8090) },
+  { L"isonyvideoprocessor.dll", DLLVER(4,1,2153,6200) },
   { L"tosqep.dll", DLLVER(1,2,15,526) },
   { L"tosqep.dll", DLLVER(1,1,12,201) },
   { L"tosqep.dll", DLLVER(1,0,11,318) },
   { L"tosqep.dll", DLLVER(1,0,11,215) },
   { L"tosqep64.dll", DLLVER(1,1,12,201) },
   { L"tosqep64.dll", DLLVER(1,0,11,215) },
   // Keep this last.
   { nullptr, 0u, 0u }