diff --git a/src/Index.scss b/src/Index.scss
index afa176d..4aaa201 100644
--- a/src/Index.scss
+++ b/src/Index.scss
@@ -1,3 +1,14 @@
+// Platform Support
+/// requestPictureInPicture() - Firefox Not Supported
+/// https://developer.mozilla.org/en-US/docs/Web/API/HTMLVideoElement/requestPictureInPicture
+@-moz-document url-prefix() {
+    #vc-pip {
+        display: none;
+    }
+}
+  
+
+// Zorn Player
 .video-container {
     position: relative;
     .video-controls, video {