diff --git a/packages/pl-fe/src/features/ui/util/fullscreen.ts b/packages/pl-fe/src/features/ui/util/fullscreen.ts
index 389dd0817..5eddf60e6 100644
--- a/packages/pl-fe/src/features/ui/util/fullscreen.ts
+++ b/packages/pl-fe/src/features/ui/util/fullscreen.ts
@@ -4,9 +4,7 @@
 const isFullscreen = (): boolean => Boolean(
   document.fullscreenElement ||
     // @ts-ignore
-    document.webkitFullscreenElement ||
-    // @ts-ignore
-    document.mozFullScreenElement,
+    document.webkitFullscreenElement,
 );
 
 const exitFullscreen = (): void => {
@@ -15,9 +13,6 @@ const exitFullscreen = (): void => {
   } else if ('webkitExitFullscreen' in document) {
     // @ts-ignore
     document.webkitExitFullscreen();
-  } else if ('mozCancelFullScreen' in document) {
-    // @ts-ignore
-    document.mozCancelFullScreen();
   }
 };
 
@@ -27,9 +22,6 @@ const requestFullscreen = (el: Element): void => {
   } else if ('webkitRequestFullscreen' in el) {
     // @ts-ignore
     el.webkitRequestFullscreen();
-  } else if ('mozRequestFullScreen' in el) {
-    // @ts-ignore
-    el.mozRequestFullScreen();
   }
 };