diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_animation_2.js b/browser/base/content/test/trackingUI/browser_trackingUI_animation_2.js
index 54fff9180396..510e3c44d10c 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_animation_2.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_animation_2.js
@@ -1,4 +1,3 @@
-/* eslint-disable mozilla/no-arbitrary-setTimeout */
 /*
  * Test that the Content Blocking icon is properly animated in the identity
  * block when loading tabs and switching between tabs.
@@ -31,7 +30,7 @@ function waitForSecurityChange(tabbrowser, numChanges = 1) {
         info("Received onSecurityChange event " + n + " of " + numChanges);
         if (n >= numChanges) {
           tabbrowser.removeProgressListener(listener);
-          resolve(n);
+          resolve();
         }
       },
     };
@@ -86,7 +85,7 @@ async function testTrackingProtectionAnimation(tabbrowser) {
   ok(!ContentBlocking.iconBox.hasAttribute("animate"), "iconBox not animating");
 
   info("Reload tracking cookies tab");
-  securityChanged = waitForSecurityChange(tabbrowser, 3);
+  securityChanged = waitForSecurityChange(tabbrowser, 4);
   tabbrowser.reload();
   await securityChanged;
 
@@ -95,7 +94,7 @@ async function testTrackingProtectionAnimation(tabbrowser) {
   await BrowserTestUtils.waitForEvent(ContentBlocking.animatedIcon, "animationend");
 
   info("Reload tracking tab");
-  securityChanged = waitForSecurityChange(tabbrowser, 4);
+  securityChanged = waitForSecurityChange(tabbrowser, 5);
   tabbrowser.selectedTab = trackingTab;
   tabbrowser.reload();
   await securityChanged;
@@ -105,27 +104,23 @@ async function testTrackingProtectionAnimation(tabbrowser) {
   await BrowserTestUtils.waitForEvent(ContentBlocking.animatedIcon, "animationend");
 
   info("Inject tracking cookie inside tracking tab");
-  securityChanged = waitForSecurityChange(tabbrowser);
-  let timeoutPromise = new Promise(resolve => setTimeout(resolve, 500));
+  securityChanged = waitForSecurityChange(tabbrowser, 2);
   await ContentTask.spawn(tabbrowser.selectedBrowser, {},
                           function() {
     content.postMessage("cookie", "*");
   });
-  let result = await Promise.race([securityChanged, timeoutPromise]);
-  is(result, undefined, "No securityChange events should be received");
+  await securityChanged;
 
   ok(ContentBlocking.iconBox.hasAttribute("active"), "iconBox active");
   ok(!ContentBlocking.iconBox.hasAttribute("animate"), "iconBox not animating");
 
   info("Inject tracking element inside tracking tab");
   securityChanged = waitForSecurityChange(tabbrowser);
-  timeoutPromise = new Promise(resolve => setTimeout(resolve, 500));
   await ContentTask.spawn(tabbrowser.selectedBrowser, {},
                           function() {
     content.postMessage("tracking", "*");
   });
-  result = await Promise.race([securityChanged, timeoutPromise]);
-  is(result, undefined, "No securityChange events should be received");
+  await securityChanged;
 
   ok(ContentBlocking.iconBox.hasAttribute("active"), "iconBox active");
   ok(!ContentBlocking.iconBox.hasAttribute("animate"), "iconBox not animating");
@@ -133,27 +128,23 @@ async function testTrackingProtectionAnimation(tabbrowser) {
   tabbrowser.selectedTab = trackingCookiesTab;
 
   info("Inject tracking cookie inside tracking cookies tab");
-  securityChanged = waitForSecurityChange(tabbrowser);
-  timeoutPromise = new Promise(resolve => setTimeout(resolve, 500));
+  securityChanged = waitForSecurityChange(tabbrowser, 2);
   await ContentTask.spawn(tabbrowser.selectedBrowser, {},
                           function() {
     content.postMessage("cookie", "*");
   });
-  result = await Promise.race([securityChanged, timeoutPromise]);
-  is(result, undefined, "No securityChange events should be received");
+  await securityChanged;
 
   ok(ContentBlocking.iconBox.hasAttribute("active"), "iconBox active");
   ok(!ContentBlocking.iconBox.hasAttribute("animate"), "iconBox not animating");
 
   info("Inject tracking element inside tracking cookies tab");
-  securityChanged = waitForSecurityChange(tabbrowser);
-  timeoutPromise = new Promise(resolve => setTimeout(resolve, 500));
+  securityChanged = waitForSecurityChange(tabbrowser, 2);
   await ContentTask.spawn(tabbrowser.selectedBrowser, {},
                           function() {
     content.postMessage("tracking", "*");
   });
-  result = await Promise.race([securityChanged, timeoutPromise]);
-  is(result, undefined, "No securityChange events should be received");
+  await securityChanged;
 
   ok(ContentBlocking.iconBox.hasAttribute("active"), "iconBox active");
   ok(!ContentBlocking.iconBox.hasAttribute("animate"), "iconBox not animating");
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_trackers_subview.js b/browser/base/content/test/trackingUI/browser_trackingUI_trackers_subview.js
index 57e544e9d36f..de64e27f246b 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_trackers_subview.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_trackers_subview.js
@@ -1,4 +1,3 @@
-/* eslint-disable mozilla/no-arbitrary-setTimeout */
 /* Any copyright is dedicated to the Public Domain.
  * http://creativecommons.org/publicdomain/zero/1.0/ */
 
@@ -28,7 +27,7 @@ function waitForSecurityChange(counter) {
       onSecurityChange: (webProgress, request, oldState, state) => {
         if (--counter == 0) {
           gBrowser.removeProgressListener(webProgressListener);
-          resolve(counter);
+          resolve();
         }
       },
       onProgressChange: () => {},
@@ -68,15 +67,13 @@ async function assertSitesListed(blocked) {
 
     ok(true, "Main view was shown");
 
-    let change = waitForSecurityChange(1);
-    let timeoutPromise = new Promise(resolve => setTimeout(resolve, 500));
+    let change = waitForSecurityChange(2);
 
     await ContentTask.spawn(browser, {}, function() {
       content.postMessage("more-tracking", "*");
     });
 
-    let result = await Promise.race([change, timeoutPromise]);
-    is(result, undefined, "No securityChange events should be received");
+    await change;
 
     viewShown = BrowserTestUtils.waitForEvent(trackersView, "ViewShown");
     categoryItem.click();
diff --git a/dom/base/nsGlobalWindowOuter.cpp b/dom/base/nsGlobalWindowOuter.cpp
index 07b12491e3f5..a54c3b9cb595 100644
--- a/dom/base/nsGlobalWindowOuter.cpp
+++ b/dom/base/nsGlobalWindowOuter.cpp
@@ -5394,11 +5394,6 @@ nsGlobalWindowOuter::NotifyContentBlockingState(unsigned aState,
     state &= ~aState;
   }
 
-  if (state == oldState) {
-    // Avoid dispatching repeated notifications when nothing has changed
-    return;
-  }
-
   eventSink->OnSecurityChange(aChannel, oldState, state, doc->GetContentBlockingLog());
 }