--- a/dom/base/nsGlobalWindow.cpp
+++ b/dom/base/nsGlobalWindow.cpp
@@ -10636,17 +10636,17 @@ void nsGlobalWindow::SetIsBackground(boo
 
   if (inner && changed) {
     inner->mTimeoutManager->UpdateBackgroundState();
   }
 
   if (aIsBackground) {
     // Notify gamepadManager we are at the background window,
     // we need to stop vibrate.
-    if (inner) {
+    if (inner && changed) {
       inner->StopGamepadHaptics();
     }
     return;
   }
 
   if (inner) {
     inner->SyncGamepadState();
   }