diff --git a/docs/framework/react/guides/window-focus-refetching.md b/docs/framework/react/guides/window-focus-refetching.md
index b2a4cbd3e5..1691c166ff 100644
--- a/docs/framework/react/guides/window-focus-refetching.md
+++ b/docs/framework/react/guides/window-focus-refetching.md
@@ -103,3 +103,9 @@ focusManager.setFocused(undefined)
 ```
 
 [//]: # 'Example4'
+
+## Troubleshooting
+
+If stale queries do not refetch when you return to a tab, check whether **Emulate a focused page** is enabled in Chrome DevTools. This setting keeps `document.visibilityState` set to `visible` and prevents `visibilitychange` events, which TanStack Query uses for its default focus handling.
+
+Disable **Emulate a focused page** in the DevTools **Rendering** panel, then switch to another tab and return to test window focus refetching. See the [Chrome DevTools documentation](https://developer.chrome.com/docs/devtools/rendering/apply-effects#emulate_a_focused_page) for more details.