--- a/dom/media/gmp/GMPServiceParent.cpp
+++ b/dom/media/gmp/GMPServiceParent.cpp
@@ -970,22 +970,20 @@ static void Dummy(RefPtr<GMPParent>& aOn
 }
 
 void
 GeckoMediaPluginServiceParent::PluginTerminated(const RefPtr<GMPParent>& aPlugin)
 {
   MOZ_ASSERT(mGMPThread->EventTarget()->IsOnCurrentThread());
 
   if (aPlugin->IsMarkedForDeletion()) {
-    nsCString path8;
+    nsString path;
     RefPtr<nsIFile> dir = aPlugin->GetDirectory();
-    nsresult rv = dir->GetNativePath(path8);
+    nsresult rv = dir->GetPath(path);
     NS_ENSURE_SUCCESS_VOID(rv);
-
-    nsString path = NS_ConvertUTF8toUTF16(path8);
     if (mPluginsWaitingForDeletion.Contains(path)) {
       RemoveOnGMPThread(path, true /* delete */, true /* can defer */);
     }
   }
 }
 
 void
 GeckoMediaPluginServiceParent::ReAddOnGMPThread(const RefPtr<GMPParent>& aOld)