diff --git a/src/inject/player/auto-full-screen.ts b/src/inject/player/auto-full-screen.ts
index 1de659d..6bdde34 100644
--- a/src/inject/player/auto-full-screen.ts
+++ b/src/inject/player/auto-full-screen.ts
@@ -19,12 +19,7 @@ export class AutoFullScreen<T extends HTMLDivElement> extends BaseModel<T> {
   private async init() {
     await this.subscribeToPreference(FULL_SCREEN.key, FULL_SCREEN.default, this.setPermition);
     await this.subscribeToPreference(AUTO_PLAY_VIDEO.key, AUTO_PLAY_VIDEO.default, this.setAutoPlayPermition);
-    await this.subscribeToPreference(NEXT_EPISODE_LAST_TRIGGER_TIME.key, NEXT_EPISODE_LAST_TRIGGER_TIME.default, (lastTriggerTime) => {
-      // @ts-ignore
-      if (lastTriggerTime && (new Date() - new Date(lastTriggerTime)) < TOLERATE_AUTO_FULL_SCREEN_IN_MS) {
-        this.nextEpisodeLastTriggerTimeFitsTime = true;
-      }
-    });
+    await this.subscribeToPreference(NEXT_EPISODE_LAST_TRIGGER_TIME.key, NEXT_EPISODE_LAST_TRIGGER_TIME.default, this.handleLastTriggerTime);
 
     this.onDomAdd(this.validate, this.action);
   }
@@ -37,6 +32,13 @@ export class AutoFullScreen<T extends HTMLDivElement> extends BaseModel<T> {
     this.autoPlayPermitted = permission;
   }
 
+  private handleLastTriggerTime = (lastTriggerTime) => {
+    // @ts-ignore
+    if (lastTriggerTime && (new Date() - new Date(lastTriggerTime)) < TOLERATE_AUTO_FULL_SCREEN_IN_MS) {
+      this.nextEpisodeLastTriggerTimeFitsTime = true;
+    }
+  }
+
   private validate = (element: T) => {
     return (
       this.permitted
@@ -53,8 +55,14 @@ export class AutoFullScreen<T extends HTMLDivElement> extends BaseModel<T> {
 
     const bodyElement = document.querySelector("body");
     bodyElement.classList.add(CSS_FULL_SCREEN_CLASS);
+
     document.addEventListener("mousedown", this.exitCssFullScreen);
-    document.addEventListener("keyup", this.exitCssFullScreen);
+    document.addEventListener("keyup", (e) => {
+      // F11's keycode = 122
+      if (e.keyCode !== 122) {
+        this.exitCssFullScreen();
+      }
+    });
   }
 
   private exitCssFullScreen = () => {