--- a/toolkit/content/widgets/videocontrols.xml
+++ b/toolkit/content/widgets/videocontrols.xml
@@ -994,25 +994,27 @@
 
       animationProps: {
         clickToPlay: {
           keyframes: [
             { transform: "scale(3)", opacity: 0 },
             { transform: "scale(1)", opacity: 0.55 }
           ],
           options: {
+            easing: "ease",
             duration: 400
           }
         },
         controlBar: {
           keyframes: [
             { opacity: 0 },
             { opacity: 1 }
           ],
           options: {
+            easing: "ease",
             duration: 200
           }
         },
         statusOverlay: {
           keyframes: [
             { opacity: 0 },
             { opacity: 0, offset: .72 }, // ~750ms into animation
             { opacity: 1 }