--- a/dom/media/webrtc/MediaEngineCameraVideoSource.cpp
+++ b/dom/media/webrtc/MediaEngineCameraVideoSource.cpp
@@ -341,16 +341,28 @@ MediaEngineCameraVideoSource::SetName(ns
 #endif // ANDROID
 #ifdef XP_MACOSX
   // Kludge to test user-facing cameras on OSX.
   if (aName.Find(NS_LITERAL_STRING("Face")) != -1) {
     hasFacingMode = true;
     facingMode = VideoFacingModeEnum::User;
   }
 #endif
+#ifdef XP_WIN
+  // The cameras' name of Surface book are "Microsoft Camera Front" and
+  // "Microsoft Camera Rear" respectively.
+
+  if (aName.Find(NS_LITERAL_STRING("Front")) != kNotFound) {
+    hasFacingMode = true;
+    facingMode = VideoFacingModeEnum::User;
+  } else if (aName.Find(NS_LITERAL_STRING("Rear")) != kNotFound) {
+    hasFacingMode = true;
+    facingMode = VideoFacingModeEnum::Environment;
+  }
+#endif // WINDOWS
   if (hasFacingMode) {
     mFacingMode.Assign(NS_ConvertUTF8toUTF16(
         VideoFacingModeEnumValues::strings[uint32_t(facingMode)].value));
   } else {
     mFacingMode.Truncate();
   }
 }