diff --git a/app/assets/javascripts/discourse/app/components/scrolling-post-stream.js b/app/assets/javascripts/discourse/app/components/scrolling-post-stream.js
index da490bb0b39..8234c21b363 100644
--- a/app/assets/javascripts/discourse/app/components/scrolling-post-stream.js
+++ b/app/assets/javascripts/discourse/app/components/scrolling-post-stream.js
@@ -77,7 +77,12 @@ export default MountWidget.extend({
     if (this.isDestroyed || this.isDestroying) {
       return;
     }
-    if (isWorkaroundActive()) {
+
+    if (
+      isWorkaroundActive() ||
+      document.webkitFullscreenElement ||
+      document.fullscreenElement
+    ) {
       return;
     }