diff --git a/frontend/src/views/Player/EmulatorJS/Base.vue b/frontend/src/views/Player/EmulatorJS/Base.vue
index 9e7f4c86d..c1830cd98 100644
--- a/frontend/src/views/Player/EmulatorJS/Base.vue
+++ b/frontend/src/views/Player/EmulatorJS/Base.vue
@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { useLocalStorage } from "@vueuse/core";
+import { useEventListener, useLocalStorage } from "@vueuse/core";
 import type { Emitter } from "mitt";
 import { storeToRefs } from "pinia";
 import { computed, inject, onBeforeUnmount, onMounted, ref, watch } from "vue";
@@ -41,6 +41,15 @@ const supportedCores = ref<string[]>([]);
 const gameRunning = ref(false);
 const fullScreenOnPlay = useLocalStorage("emulation.fullScreenOnPlay", true);
 
+declare global {
+  interface Navigator {
+    keyboard: {
+      lock: (keys: string[]) => Promise<void>;
+      unlock: () => void;
+    };
+  }
+}
+
 const compatibleStates = computed(
   () =>
     rom.value?.user_states.filter(
@@ -173,6 +182,18 @@ onMounted(async () => {
   emitter?.on("saveSelected", selectSave);
   emitter?.on("stateSelected", selectState);
 
+  if ("keyboard" in navigator) {
+    useEventListener(document, "fullscreenchange", () => {
+      if (document.fullscreenElement) {
+        navigator.keyboard
+          .lock(["Escape", "Tab", "AltLeft", "ControlLeft", "MetaLeft"])
+          .catch(() => {});
+      } else {
+        navigator.keyboard.unlock();
+      }
+    });
+  }
+
   // Determine default tab and selection (mutually exclusive)
   const compatibleStates = rom.value.user_states.filter(
     (s) => !s.emulator || s.emulator === supportedCores.value[0],