--- a/toolkit/content/widgets/videocontrols.js
+++ b/toolkit/content/widgets/videocontrols.js
@@ -73,18 +73,16 @@ this.VideoControlsImplPageWidget = class
   constructor(shadowRoot) {
     this.shadowRoot = shadowRoot;
     this.element = shadowRoot.host;
     this.document = this.element.ownerDocument;
     this.window = this.document.defaultView;
 
     this.generateContent();
 
-    this.randomID = 0;
-
     this.Utils = {
       debug: false,
       video: null,
       videocontrols: null,
       controlBar: null,
       playButton: null,
       muteButton: null,
       volumeControl: null,
@@ -96,17 +94,16 @@ this.VideoControlsImplPageWidget = class
       statusOverlay: null,
       controlsSpacer: null,
       clickToPlay: null,
       controlsOverlay: null,
       fullscreenButton: null,
       layoutControls: null,
 
       textTracksCount: 0,
-      randomID: 0,
       videoEvents: ["play", "pause", "ended", "volumechange", "loadeddata",
                     "loadstart", "timeupdate", "progress",
                     "playing", "waiting", "canplay", "canplaythrough",
                     "seeking", "seeked", "emptied", "loadedmetadata",
                     "error", "suspend", "stalled",
                     "mozvideoonlyseekbegin", "mozvideoonlyseekcompleted"],
 
       showHours: false,
@@ -180,19 +177,16 @@ this.VideoControlsImplPageWidget = class
 
       /*
       * Set the initial state of the controls. The binding is normally created along
       * with video element, but could be attached at any point (eg, if the video is
       * removed from the document and then reinserted). Thus, some one-time events may
       * have already fired, and so we'll need to explicitly check the initial state.
       */
       setupInitialState() {
-        this.randomID = Math.random();
-        this.videocontrols.randomID = this.randomID;
-
         this.setPlayButtonState(this.video.paused);
 
         this.setFullscreenButtonState();
 
         var duration = Math.round(this.video.duration * 1000); // in ms
         var currentTime = Math.round(this.video.currentTime * 1000); // in ms
         this.log("Initial playback position is at " + currentTime + " of " + duration);
         // It would be nice to retain maxCurrentTimeSeen, but it would be difficult
@@ -416,23 +410,16 @@ this.VideoControlsImplPageWidget = class
       handleEvent(aEvent) {
         if (!aEvent.isTrusted) {
           this.log("Drop untrusted event ----> " + aEvent.type);
           return;
         }
 
         this.log("Got event ----> " + aEvent.type);
 
-        // If the binding is detached (or has been replaced by a
-        // newer instance of the binding), nuke our event-listeners.
-        if (this.videocontrols.randomID != this.randomID) {
-          this.terminate();
-          return;
-        }
-
         if (this.videoEvents.includes(aEvent.type)) {
           this.handleVideoEvent(aEvent);
         } else {
           this.handleControlEvent(aEvent);
         }
       },
 
       handleVideoEvent(aEvent) {
@@ -2042,20 +2029,16 @@ this.VideoControlsImplPageWidget = class
                 this.Utils.video.play();
                 this.firstShow = false;
               }
               this.toggleControls();
             }
 
             break;
         }
-
-        if (this.videocontrols.randomID != this.Utils.randomID) {
-          this.terminate();
-        }
       },
 
       terminate() {
         try {
           for (let { el, type, mozSystemGroup = true } of this.controlsEvents) {
             el.removeEventListener(type, this, { mozSystemGroup });
           }
         } catch (ex) {}
@@ -2182,21 +2165,16 @@ this.VideoControlsImplPageWidget = class
       </div>`, "application/xml");
     this.shadowRoot.importNodeAndAppendChildAt(this.shadowRoot, parserDoc.documentElement, true);
   }
 
   destructor() {
     this.Utils.terminate();
     this.TouchUtils.terminate();
     this.Utils.updateOrientationState(false);
-    // randomID used to be a <field>, which meant that the XBL machinery
-    // undefined the property when the element was unbound. The code in
-    // this file actually depends on this, so now that randomID is an
-    // expando, we need to make sure to explicitly delete it.
-    delete this.randomID;
   }
 
   _setupEventListeners() {
     this.shadowRoot.firstChild.addEventListener("mouseover", event => {
       if (!this.isTouchControls) {
         this.Utils.onMouseInOut(event);
       }
     });
@@ -2219,19 +2197,17 @@ this.NoControlsImplPageWidget = class {
   constructor(shadowRoot) {
     this.shadowRoot = shadowRoot;
     this.element = shadowRoot.host;
     this.document = this.element.ownerDocument;
     this.window = this.document.defaultView;
 
     this.generateContent();
 
-    this.randomID = 0;
     this.Utils = {
-      randomID: 0,
       videoEvents: ["play",
                     "playing",
                     "MozNoControlsBlockedVideo"],
       terminate() {
         for (let event of this.videoEvents) {
           try {
             this.video.removeEventListener(event, this, {
               capture: true,
@@ -2245,23 +2221,16 @@ this.NoControlsImplPageWidget = class {
         } catch (ex) {}
       },
 
       hasError() {
         return (this.video.error != null || this.video.networkState == this.video.NETWORK_NO_SOURCE);
       },
 
       handleEvent(aEvent) {
-        // If the binding is detached (or has been replaced by a
-        // newer instance of the binding), nuke our event-listeners.
-        if (this.videocontrols.randomID != this.randomID) {
-          this.terminate();
-          return;
-        }
-
         switch (aEvent.type) {
           case "play":
             this.noControlsOverlay.hidden = true;
             break;
           case "playing":
             this.noControlsOverlay.hidden = true;
             break;
           case "MozNoControlsBlockedVideo":
@@ -2269,49 +2238,40 @@ this.NoControlsImplPageWidget = class {
             break;
           case "click":
             this.clickToPlayClickHandler(aEvent);
             break;
         }
       },
 
       blockedVideoHandler() {
-        if (this.videocontrols.randomID != this.randomID) {
-          this.terminate();
-          return;
-        } else if (this.hasError()) {
+        if (this.hasError()) {
           this.noControlsOverlay.hidden = true;
           return;
         }
         this.noControlsOverlay.hidden = false;
       },
 
       clickToPlayClickHandler(e) {
-        if (this.videocontrols.randomID != this.randomID) {
-          this.terminate();
-          return;
-        } else if (e.button != 0) {
+        if (e.button != 0) {
           return;
         }
 
         this.noControlsOverlay.hidden = true;
         this.video.play();
       },
 
       init(shadowRoot) {
         this.shadowRoot = shadowRoot;
         this.video = shadowRoot.host;
         this.videocontrols = shadowRoot.firstChild;
         this.document = this.videocontrols.ownerDocument;
         this.window = this.document.defaultView;
         this.shadowRoot = shadowRoot;
 
-        this.randomID = Math.random();
-        this.videocontrols.randomID = this.randomID;
-
         this.controlsContainer = this.shadowRoot.getElementById("controlsContainer");
         this.clickToPlay = this.shadowRoot.getElementById("clickToPlay");
         this.noControlsOverlay = this.shadowRoot.getElementById("controlsContainer");
 
         let isMobile = this.window.navigator.appVersion.includes("Android");
         if (isMobile) {
           this.controlsContainer.classList.add("mobile");
         }
@@ -2333,21 +2293,16 @@ this.NoControlsImplPageWidget = class {
       }
     };
     this.Utils.init(this.shadowRoot);
     this.Utils.video.dispatchEvent(new this.window.CustomEvent("MozNoControlsVideoBindingAttached"));
   }
 
   destructor() {
     this.Utils.terminate();
-    // randomID used to be a <field>, which meant that the XBL machinery
-    // undefined the property when the element was unbound. The code in
-    // this file actually depends on this, so now that randomID is an
-    // expando, we need to make sure to explicitly delete it.
-    delete this.randomID;
   }
 
   generateContent() {
     /*
      * Pass the markup through XML parser purely for the reason of loading the localization DTD.
      * Remove it when migrate to Fluent.
      */
     const parser = new this.window.DOMParser();