diff --git a/browser/base/content/browser-contentblocking.js b/browser/base/content/browser-contentblocking.js
index 1af597875017..91d50e4035d4 100644
--- a/browser/base/content/browser-contentblocking.js
+++ b/browser/base/content/browser-contentblocking.js
@@ -129,7 +129,6 @@ var ThirdPartyCookies = {
 var ContentBlocking = {
   // If the user ignores the doorhanger, we stop showing it after some time.
   MAX_INTROS: 20,
-  PREF_ENABLED: "browser.contentblocking.enabled",
   PREF_ANIMATIONS_ENABLED: "toolkit.cosmeticAnimations.enabled",
   PREF_REPORT_BREAKAGE_ENABLED: "browser.contentblocking.reportBreakage.enabled",
   PREF_REPORT_BREAKAGE_URL: "browser.contentblocking.reportBreakage.url",
@@ -216,13 +215,9 @@ var ContentBlocking = {
 
     Services.prefs.addObserver(this.PREF_ANIMATIONS_ENABLED, this.updateAnimationsEnabled);
 
-    XPCOMUtils.defineLazyPreferenceGetter(this, "contentBlockingEnabled", this.PREF_ENABLED, false,
-      this.updateEnabled.bind(this));
     XPCOMUtils.defineLazyPreferenceGetter(this, "reportBreakageEnabled",
       this.PREF_REPORT_BREAKAGE_ENABLED, false);
 
-    this.updateEnabled();
-
     this.appMenuLabel.setAttribute("label", this.strings.appMenuTitle);
     this.appMenuLabel.setAttribute("tooltiptext", this.strings.appMenuTooltip);
 
@@ -242,19 +237,6 @@ var ContentBlocking = {
     Services.prefs.removeObserver(this.PREF_ANIMATIONS_ENABLED, this.updateAnimationsEnabled);
   },
 
-  get enabled() {
-    return this.contentBlockingEnabled;
-  },
-
-  updateEnabled() {
-    this.content.toggleAttribute("enabled", this.enabled);
-
-    // The enabled state of blockers may also change since it depends on this.enabled.
-    for (let blocker of this.blockers) {
-      blocker.categoryItem.classList.toggle("blocked", this.enabled && blocker.enabled);
-    }
-  },
-
   hideIdentityPopupAndReload() {
     document.getElementById("identity-popup").hidePopup();
     BrowserReload();
@@ -366,7 +348,7 @@ var ContentBlocking = {
       // dialog should only be able to open in the currently selected tab and onSecurityChange
       // runs on tab switch, so we can avoid associating the data with the document directly.
       blocker.activated = blocker.isBlockerActivated(state);
-      blocker.categoryItem.classList.toggle("blocked", this.enabled && blocker.enabled);
+      blocker.categoryItem.classList.toggle("blocked", blocker.enabled);
       blocker.categoryItem.hidden = !blocker.visible;
       anyBlockerActivated = anyBlockerActivated || blocker.activated;
     }
@@ -375,7 +357,7 @@ var ContentBlocking = {
     // occurs on the page.  Note that merely allowing the loading of content that
     // we could have blocked does not trigger the appearance of the shield.
     // This state will be overriden later if there's an exception set for this site.
-    let active = this.enabled && anyBlockerActivated;
+    let active = anyBlockerActivated;
     let isAllowing = state & Ci.nsIWebProgressListener.STATE_LOADED_TRACKING_CONTENT;
     let detected = anyBlockerActivated || isAllowing;
 
@@ -391,7 +373,7 @@ var ContentBlocking = {
     this.content.toggleAttribute("active", active);
 
     this.iconBox.toggleAttribute("active", active);
-    this.iconBox.toggleAttribute("hasException", this.enabled && hasException);
+    this.iconBox.toggleAttribute("hasException", hasException);
 
     // For release (due to the large volume) we only want to receive reports
     // for breakage that is directly related to third party cookie blocking.
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 534ab7dd7c53..89c8de9b84f5 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_animation_2.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_animation_2.js
@@ -4,7 +4,6 @@
  * See also Bug 1175858.
  */
 
-const CB_PREF = "browser.contentblocking.enabled";
 const TP_PREF = "privacy.trackingprotection.enabled";
 const TP_PB_PREF = "privacy.trackingprotection.enabled";
 const NCB_PREF = "network.cookie.cookieBehavior";
@@ -17,7 +16,6 @@ registerCleanupFunction(function() {
   Services.prefs.clearUserPref(TP_PREF);
   Services.prefs.clearUserPref(TP_PB_PREF);
   Services.prefs.clearUserPref(NCB_PREF);
-  Services.prefs.clearUserPref(CB_PREF);
   Services.prefs.clearUserPref(ContentBlocking.prefIntroCount);
 });
 
@@ -168,8 +166,6 @@ add_task(async function testNormalBrowsing() {
   ok(TrackingProtection.enabled, "TP is enabled after setting the pref");
   Services.prefs.setIntPref(NCB_PREF, Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER);
   ok(ThirdPartyCookies.enabled, "ThirdPartyCookies is enabled after setting the pref");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(ContentBlocking.enabled, "CB is enabled after setting the pref");
   Services.prefs.setIntPref(ContentBlocking.prefIntroCount, ContentBlocking.MAX_INTROS);
 
   await testTrackingProtectionAnimation(gBrowser);
@@ -190,8 +186,6 @@ add_task(async function testPrivateBrowsing() {
   ok(TrackingProtection.enabled, "TP is enabled after setting the pref");
   Services.prefs.setIntPref(NCB_PREF, Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER);
   ok(ThirdPartyCookies.enabled, "ThirdPartyCookies is enabled after setting the pref");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(TrackingProtection.enabled, "CB is enabled after setting the pref");
   Services.prefs.setIntPref(ContentBlocking.prefIntroCount, ContentBlocking.MAX_INTROS);
 
   await testTrackingProtectionAnimation(tabbrowser);
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_fetch.js b/browser/base/content/test/trackingUI/browser_trackingUI_fetch.js
index 558bee7bc3ad..45a846c4d8a3 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_fetch.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_fetch.js
@@ -20,7 +20,6 @@ function waitForSecurityChange(numChanges = 1) {
 add_task(async function test_fetch() {
   await SpecialPowers.pushPrefEnv({ set: [
     ["privacy.trackingprotection.enabled", true],
-    ["browser.contentblocking.enabled", true],
   ]});
 
   await BrowserTestUtils.withNewTab({ gBrowser, url: URL }, async function(newTabBrowser) {
@@ -34,7 +33,6 @@ add_task(async function test_fetch() {
 
     let ContentBlocking = newTabBrowser.ownerGlobal.ContentBlocking;
     ok(ContentBlocking, "got CB object");
-    ok(ContentBlocking.enabled, "CB is enabled");
 
     ok(ContentBlocking.content.hasAttribute("detected"), "has detected content blocking");
     ok(ContentBlocking.iconBox.hasAttribute("active"), "icon box is active");
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_open_preferences.js b/browser/base/content/test/trackingUI/browser_trackingUI_open_preferences.js
index 3d906c485f67..d2bb3df028ac 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_open_preferences.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_open_preferences.js
@@ -3,7 +3,6 @@
 
 "use strict";
 
-const CB_PREF = "browser.contentblocking.enabled";
 const TP_PREF = "privacy.trackingprotection.enabled";
 const FB_PREF = "browser.fastblock.enabled";
 const TPC_PREF = "network.cookie.cookieBehavior";
@@ -67,7 +66,6 @@ add_task(async function testOpenPreferencesFromPrefsButton() {
 // links to about:preferences
 add_task(async function testOpenPreferencesFromAddBlockingButtons() {
   SpecialPowers.pushPrefEnv({set: [
-    [CB_PREF, true],
     [FB_PREF, false],
     [TP_PREF, false],
     [TPC_PREF, Ci.nsICookieService.BEHAVIOR_ACCEPT],
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_pbmode_exceptions.js b/browser/base/content/test/trackingUI/browser_trackingUI_pbmode_exceptions.js
index 8fd5cef3e2ab..c462c3ab9255 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_pbmode_exceptions.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_pbmode_exceptions.js
@@ -4,7 +4,6 @@
 // Test that sites added to the Tracking Protection whitelist in private
 // browsing mode don't persist once the private browsing window closes.
 
-const CB_PREF = "browser.contentblocking.enabled";
 const TP_PB_PREF = "privacy.trackingprotection.enabled";
 const TRACKING_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/trackingPage.html";
 var TrackingProtection = null;
@@ -13,7 +12,6 @@ var browser = null;
 
 registerCleanupFunction(function() {
   Services.prefs.clearUserPref(TP_PB_PREF);
-  Services.prefs.clearUserPref(CB_PREF);
   ContentBlocking = TrackingProtection = browser = null;
   UrlClassifierTestUtils.cleanupTestTrackers();
 });
@@ -105,8 +103,6 @@ add_task(async function testExceptionAddition() {
 
   Services.prefs.setBoolPref(TP_PB_PREF, true);
   ok(TrackingProtection.enabled, "TP is enabled after setting the pref");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(TrackingProtection.enabled, "CB is enabled after setting the pref");
 
   info("Load a test page containing tracking elements");
   await promiseTabLoadEvent(tab, TRACKING_PAGE);
@@ -142,7 +138,6 @@ add_task(async function testExceptionPersistence() {
   TrackingProtection = browser.ownerGlobal.TrackingProtection;
   ok(TrackingProtection, "TP is attached to the private window");
 
-  ok(ContentBlocking.enabled, "CB is still enabled");
   ok(TrackingProtection.enabled, "TP is still enabled");
 
   info("Load a test page containing tracking elements");
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_report_breakage.js b/browser/base/content/test/trackingUI/browser_trackingUI_report_breakage.js
index 1921e216312c..9ba428231ec7 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_report_breakage.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_report_breakage.js
@@ -7,7 +7,6 @@ const TRACKING_PAGE = "http://tracking.example.org/browser/browser/base/content/
 const BENIGN_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/benignPage.html";
 const COOKIE_PAGE = "http://not-tracking.example.com/browser/browser/base/content/test/trackingUI/cookiePage.html";
 
-const CB_PREF = "browser.contentblocking.enabled";
 const TP_PREF = "privacy.trackingprotection.enabled";
 const PREF_REPORT_BREAKAGE_ENABLED = "browser.contentblocking.reportBreakage.enabled";
 const PREF_REPORT_BREAKAGE_URL = "browser.contentblocking.reportBreakage.url";
@@ -39,7 +38,6 @@ add_task(async function testReportBreakageVisibility() {
     {
       url: TRACKING_PAGE,
       prefs: {
-        "browser.contentblocking.enabled": true,
         "privacy.trackingprotection.enabled": true,
         "browser.contentblocking.reportBreakage.enabled": true,
       },
@@ -49,7 +47,6 @@ add_task(async function testReportBreakageVisibility() {
       url: TRACKING_PAGE,
       hasException: true,
       prefs: {
-        "browser.contentblocking.enabled": true,
         "privacy.trackingprotection.enabled": true,
         "browser.contentblocking.reportBreakage.enabled": true,
       },
@@ -58,16 +55,6 @@ add_task(async function testReportBreakageVisibility() {
     {
       url: TRACKING_PAGE,
       prefs: {
-        "browser.contentblocking.enabled": false,
-        "privacy.trackingprotection.enabled": true,
-        "browser.contentblocking.reportBreakage.enabled": true,
-      },
-      buttonVisible: false,
-    },
-    {
-      url: TRACKING_PAGE,
-      prefs: {
-        "browser.contentblocking.enabled": true,
         "privacy.trackingprotection.enabled": true,
         "browser.contentblocking.reportBreakage.enabled": false,
       },
@@ -76,7 +63,6 @@ add_task(async function testReportBreakageVisibility() {
     {
       url: BENIGN_PAGE,
       prefs: {
-        "browser.contentblocking.enabled": true,
         "privacy.trackingprotection.enabled": true,
         "browser.contentblocking.reportBreakage.enabled": true,
       },
@@ -85,7 +71,6 @@ add_task(async function testReportBreakageVisibility() {
     {
       url: COOKIE_PAGE,
       prefs: {
-        "browser.contentblocking.enabled": true,
         "privacy.trackingprotection.enabled": false,
         "network.cookie.cookieBehavior": Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER,
         "browser.contentblocking.reportBreakage.enabled": false,
@@ -122,7 +107,6 @@ add_task(async function testReportBreakageVisibility() {
 
 add_task(async function testReportBreakageCancel() {
   Services.prefs.setBoolPref(TP_PREF, true);
-  Services.prefs.setBoolPref(CB_PREF, true);
   Services.prefs.setBoolPref(PREF_REPORT_BREAKAGE_ENABLED, true);
 
   await BrowserTestUtils.withNewTab(TRACKING_PAGE, async function() {
@@ -153,7 +137,6 @@ add_task(async function testReportBreakageCancel() {
     ok(true, "Main view was shown");
   });
 
-  Services.prefs.clearUserPref(CB_PREF);
   Services.prefs.clearUserPref(TP_PREF);
   Services.prefs.clearUserPref(PREF_REPORT_BREAKAGE_ENABLED);
 });
@@ -166,7 +149,6 @@ add_task(async function testReportBreakage() {
   let path = i.primaryScheme + "://" + i.primaryHost + ":" + i.primaryPort + "/";
 
   Services.prefs.setBoolPref(TP_PREF, true);
-  Services.prefs.setBoolPref(CB_PREF, true);
   Services.prefs.setBoolPref(PREF_REPORT_BREAKAGE_ENABLED, true);
   Services.prefs.setStringPref(PREF_REPORT_BREAKAGE_URL, path);
 
@@ -248,7 +230,6 @@ add_task(async function testReportBreakage() {
   // Stop the server.
   await new Promise(r => server.stop(r));
 
-  Services.prefs.clearUserPref(CB_PREF);
   Services.prefs.clearUserPref(TP_PREF);
   Services.prefs.clearUserPref(PREF_REPORT_BREAKAGE_ENABLED);
   Services.prefs.clearUserPref(PREF_REPORT_BREAKAGE_URL);
@@ -256,7 +237,6 @@ add_task(async function testReportBreakage() {
 
 add_task(async function cleanup() {
   // Clear prefs that are touched in this test again for sanity.
-  Services.prefs.clearUserPref(CB_PREF);
   Services.prefs.clearUserPref(TP_PREF);
   Services.prefs.clearUserPref(PREF_REPORT_BREAKAGE_ENABLED);
   Services.prefs.clearUserPref(PREF_REPORT_BREAKAGE_URL);
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_state.js b/browser/base/content/test/trackingUI/browser_trackingUI_state.js
index 7a9b8c4bf9bc..9a00d88691ea 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_state.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_state.js
@@ -14,7 +14,6 @@
  * See also Bugs 1175327, 1043801, 1178985
  */
 
-const CB_PREF = "browser.contentblocking.enabled";
 const TP_PREF = "privacy.trackingprotection.enabled";
 const TP_PB_PREF = "privacy.trackingprotection.pbmode.enabled";
 const TPC_PREF = "network.cookie.cookieBehavior";
@@ -33,7 +32,6 @@ registerCleanupFunction(function() {
   UrlClassifierTestUtils.cleanupTestTrackers();
   Services.prefs.clearUserPref(TP_PREF);
   Services.prefs.clearUserPref(TP_PB_PREF);
-  Services.prefs.clearUserPref(CB_PREF);
   Services.prefs.clearUserPref(TPC_PREF);
 });
 
@@ -67,8 +65,7 @@ function testBenignPage() {
   ok(BrowserTestUtils.is_hidden(ContentBlocking.iconBox), "icon box is hidden");
   ok(hidden("#tracking-action-block"), "blockButton is hidden");
   ok(hidden("#tracking-action-unblock"), "unblockButton is hidden");
-  is(!hidden("#identity-popup-content-blocking-disabled-label"), !ContentBlocking.enabled,
-    "disabled label is visible if CB is off");
+  ok(hidden("#identity-popup-content-blocking-disabled-label"), "disabled label is not visible");
 
   ok(!hidden("#identity-popup-content-blocking-not-detected"), "blocking not detected label is visible");
   ok(hidden("#identity-popup-content-blocking-detected"), "blocking detected label is hidden");
@@ -82,15 +79,12 @@ function testBenignPageWithException() {
   ok(!ContentBlocking.content.hasAttribute("active"), "content is not active");
 
   ok(!ContentBlocking.iconBox.hasAttribute("active"), "shield is not active");
-  is(ContentBlocking.iconBox.hasAttribute("hasException"), ContentBlocking.enabled,
-    "shield shows exception if CB is on");
+  ok(ContentBlocking.iconBox.hasAttribute("hasException"), "shield shows exception");
   is(ContentBlocking.iconBox.getAttribute("tooltiptext"),
      gNavigatorBundle.getString("trackingProtection.icon.disabledTooltip"), "correct tooltip");
 
-  is(!BrowserTestUtils.is_hidden(ContentBlocking.iconBox), ContentBlocking.enabled,
-    "icon box is not hidden if CB is on");
-  is(!hidden("#tracking-action-block"), ContentBlocking.enabled,
-     "blockButton is visible if CB is on");
+  ok(!BrowserTestUtils.is_hidden(ContentBlocking.iconBox), "icon box is not hidden");
+  ok(!hidden("#tracking-action-block"), "blockButton is visible");
   ok(hidden("#tracking-action-unblock"), "unblockButton is hidden");
   ok(!hidden("#identity-popup-content-blocking-disabled-label"), "disabled label is visible");
 
@@ -100,11 +94,8 @@ function testBenignPageWithException() {
 }
 
 function areTrackersBlocked(isPrivateBrowsing) {
-  let cbEnabled = Services.prefs.getBoolPref(CB_PREF);
-  let blockedByTP = cbEnabled &&
-                    Services.prefs.getBoolPref(isPrivateBrowsing ? TP_PB_PREF : TP_PREF);
-  let blockedByTPC = cbEnabled &&
-                     Services.prefs.getIntPref(TPC_PREF) == Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER;
+  let blockedByTP = Services.prefs.getBoolPref(isPrivateBrowsing ? TP_PB_PREF : TP_PREF);
+  let blockedByTPC = Services.prefs.getIntPref(TPC_PREF) == Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER;
   return blockedByTP || blockedByTPC;
 }
 
@@ -169,18 +160,14 @@ function testTrackingPageUnblocked(blockedByTP, window) {
   ok(ContentBlocking.content.hasAttribute("detected"), "trackers are detected");
   ok(ContentBlocking.content.hasAttribute("hasException"), "content shows exception");
 
-  let blockingEnabled = Services.prefs.getBoolPref(CB_PREF);
   ok(!ContentBlocking.content.hasAttribute("active"), "content is not active");
   ok(!ContentBlocking.iconBox.hasAttribute("active"), "shield is not active");
-  is(ContentBlocking.iconBox.hasAttribute("hasException"), blockingEnabled,
-     "shield" + (blockingEnabled ? " shows" : " doesn't show") + " exception");
+  ok(ContentBlocking.iconBox.hasAttribute("hasException"), "shield shows exception");
   is(ContentBlocking.iconBox.getAttribute("tooltiptext"),
      gNavigatorBundle.getString("trackingProtection.icon.disabledTooltip"), "correct tooltip");
 
-  is(BrowserTestUtils.is_visible(ContentBlocking.iconBox), blockingEnabled,
-     "icon box is" + (blockingEnabled ? "" : " not") + " visible");
-  is(hidden("#tracking-action-block"), !blockingEnabled,
-     "blockButton is" + (blockingEnabled ? " not" : "") + " visible");
+  ok(BrowserTestUtils.is_visible(ContentBlocking.iconBox), "icon box is visible");
+  ok(!hidden("#tracking-action-block"), "blockButton is visible");
   ok(hidden("#tracking-action-unblock"), "unblockButton is hidden");
   ok(!hidden("#identity-popup-content-blocking-disabled-label"), "disabled label is visible");
 
@@ -198,32 +185,7 @@ function testTrackingPageUnblocked(blockedByTP, window) {
     "TP category item is not set to blocked");
 }
 
-function testTrackingPageWithCBDisabled() {
-  info("Tracking content must be white-listed and not blocked");
-  ok(ContentBlocking.content.hasAttribute("detected"), "trackers are detected");
-  ok(!ContentBlocking.content.hasAttribute("hasException"), "content shows no exception");
-  ok(!ContentBlocking.content.hasAttribute("active"), "content is not active");
-
-  ok(!ContentBlocking.iconBox.hasAttribute("active"), "shield is not active");
-  ok(!ContentBlocking.iconBox.hasAttribute("hasException"), "shield shows no exception");
-  ok(!ContentBlocking.iconBox.getAttribute("tooltiptext"), "icon box has no tooltip");
-
-  ok(BrowserTestUtils.is_hidden(ContentBlocking.iconBox), "icon box is hidden");
-  ok(hidden("#tracking-action-block"), "blockButton is hidden");
-  ok(hidden("#tracking-action-unblock"), "unblockButton is hidden");
-  ok(!hidden("#identity-popup-content-blocking-disabled-label"), "disabled label is visible");
-
-  ok(hidden("#identity-popup-content-blocking-not-detected"), "blocking not detected label is hidden");
-  ok(!hidden("#identity-popup-content-blocking-detected"), "blocking detected label is visible");
-
-  ok(!hidden("#identity-popup-content-blocking-category-list"), "category list is visible");
-  ok(!hidden("#identity-popup-content-blocking-category-tracking-protection > .identity-popup-content-blocking-category-add-blocking"),
-    "TP category item is showing add blocking");
-  ok(hidden("#identity-popup-content-blocking-category-tracking-protection > .identity-popup-content-blocking-category-state-label"),
-    "TP category item is not set to blocked");
-}
-
-async function testContentBlockingEnabled(tab) {
+async function testContentBlocking(tab) {
   info("Testing with Tracking Protection ENABLED.");
 
   info("Load a test page not containing tracking elements");
@@ -266,36 +228,6 @@ async function testContentBlockingEnabled(tab) {
   testTrackingPage(tab.ownerGlobal);
 }
 
-async function testContentBlockingDisabled(tab) {
-  info("Testing with Tracking Protection DISABLED.");
-
-  info("Load a test page not containing tracking elements");
-  await promiseTabLoadEvent(tab, BENIGN_PAGE);
-  testBenignPage();
-
-  info("Load a test page not containing tracking elements which has an exception.");
-  let isPrivateBrowsing = PrivateBrowsingUtils.isWindowPrivate(tab.ownerGlobal);
-  let uri = Services.io.newURI("https://example.org/");
-  if (isPrivateBrowsing) {
-    PrivateBrowsingUtils.addToTrackingAllowlist(uri);
-  } else {
-    Services.perms.add(uri, "trackingprotection", Services.perms.ALLOW_ACTION);
-  }
-
-  await promiseTabLoadEvent(tab, uri.spec);
-  testBenignPageWithException();
-
-  if (isPrivateBrowsing) {
-    PrivateBrowsingUtils.removeFromTrackingAllowlist(uri);
-  } else {
-    Services.perms.remove(uri, "trackingprotection");
-  }
-
-  info("Load a test page containing tracking elements");
-  await promiseTabLoadEvent(tab, gTrackingPageURL);
-  testTrackingPageWithCBDisabled();
-}
-
 add_task(async function testNormalBrowsing() {
   await UrlClassifierTestUtils.addTestTrackers();
 
@@ -311,24 +243,12 @@ add_task(async function testNormalBrowsing() {
 
   Services.prefs.setIntPref(TPC_PREF, Ci.nsICookieService.BEHAVIOR_ACCEPT);
 
-  await testContentBlockingEnabled(tab);
-
-  Services.prefs.setBoolPref(CB_PREF, false);
-  ok(!ContentBlocking.enabled, "CB is disabled after setting the pref");
-
-  await testContentBlockingDisabled(tab);
+  await testContentBlocking(tab);
 
   Services.prefs.setBoolPref(TP_PREF, true);
   ok(TrackingProtection.enabled, "TP is enabled after setting the pref");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(ContentBlocking.enabled, "CB is enabled after setting the pref");
 
-  await testContentBlockingEnabled(tab);
-
-  Services.prefs.setBoolPref(CB_PREF, false);
-  ok(!ContentBlocking.enabled, "CB is disabled after setting the pref");
-
-  await testContentBlockingDisabled(tab);
+  await testContentBlocking(tab);
 
   gBrowser.removeCurrentTab();
 
@@ -352,24 +272,12 @@ add_task(async function testPrivateBrowsing() {
   is(TrackingProtection.enabled, Services.prefs.getBoolPref(TP_PB_PREF),
      "TP.enabled is based on the pb pref value");
 
-  await testContentBlockingEnabled(tab);
-
-  Services.prefs.setBoolPref(CB_PREF, false);
-  ok(!ContentBlocking.enabled, "CB is disabled after setting the pref");
-
-  await testContentBlockingDisabled(tab);
+  await testContentBlocking(tab);
 
   Services.prefs.setBoolPref(TP_PB_PREF, true);
   ok(TrackingProtection.enabled, "TP is enabled after setting the pref");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(TrackingProtection.enabled, "CB is enabled after setting the pref");
 
-  await testContentBlockingEnabled(tab);
-
-  Services.prefs.setBoolPref(CB_PREF, false);
-  ok(!ContentBlocking.enabled, "CB is disabled after setting the pref");
-
-  await testContentBlockingDisabled(tab);
+  await testContentBlocking(tab);
 
   privateWin.close();
 
@@ -390,27 +298,13 @@ add_task(async function testThirdPartyCookies() {
   is(ThirdPartyCookies.enabled,
      Services.prefs.getIntPref(TPC_PREF) == Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER,
      "TPC.enabled is based on the original pref value");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(ContentBlocking.enabled, "CB is enabled after setting the pref");
 
-  await testContentBlockingEnabled(tab);
-
-  Services.prefs.setBoolPref(CB_PREF, false);
-  ok(!ContentBlocking.enabled, "CB is disabled after setting the pref");
-
-  await testContentBlockingDisabled(tab);
+  await testContentBlocking(tab);
 
   Services.prefs.setIntPref(TPC_PREF, Ci.nsICookieService.BEHAVIOR_REJECT_TRACKER);
   ok(ThirdPartyCookies.enabled, "TPC is enabled after setting the pref");
-  Services.prefs.setBoolPref(CB_PREF, true);
-  ok(ContentBlocking.enabled, "CB is enabled after setting the pref");
 
-  await testContentBlockingEnabled(tab);
-
-  Services.prefs.setBoolPref(CB_PREF, false);
-  ok(!ContentBlocking.enabled, "CB is disabled after setting the pref");
-
-  await testContentBlockingDisabled(tab);
+  await testContentBlocking(tab);
 
   Services.prefs.clearUserPref(TPC_PREF);
   gBrowser.removeCurrentTab();
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_state_all_disabled.js b/browser/base/content/test/trackingUI/browser_trackingUI_state_all_disabled.js
index 469d0435a371..08926de29cc5 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_state_all_disabled.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_state_all_disabled.js
@@ -5,7 +5,6 @@
 
 const TRACKING_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/trackingPage.html";
 const BENIGN_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/benignPage.html";
-const CB_PREF = "browser.contentblocking.enabled";
 const TP_PREF = "privacy.trackingprotection.enabled";
 const FB_PREF = "browser.fastblock.enabled";
 const COOKIE_PREF = "network.cookie.cookieBehavior";
@@ -15,7 +14,6 @@ const ANIMATIONS_PREF = "toolkit.cosmeticAnimations.enabled";
 // categories are turned off, even when content blocking is on.
 add_task(async function testContentBlockingAllDisabled() {
   await SpecialPowers.pushPrefEnv({set: [
-    [CB_PREF, true],
     [TP_PREF, false],
     [FB_PREF, false],
     [COOKIE_PREF, Ci.nsICookieService.BEHAVIOR_ACCEPT],
diff --git a/browser/base/content/test/trackingUI/browser_trackingUI_telemetry.js b/browser/base/content/test/trackingUI/browser_trackingUI_telemetry.js
index 19b4110deef8..ce7e19689374 100644
--- a/browser/base/content/test/trackingUI/browser_trackingUI_telemetry.js
+++ b/browser/base/content/test/trackingUI/browser_trackingUI_telemetry.js
@@ -39,8 +39,6 @@ add_task(async function setup() {
   let scalars = Services.telemetry.snapshotScalars(
     Ci.nsITelemetry.DATASET_RELEASE_CHANNEL_OPTOUT, false).parent;
 
-  is(scalars["contentblocking.enabled"], Services.prefs.getBoolPref("browser.contentblocking.enabled"),
-    "CB enabled status was recorded at startup");
   is(scalars["contentblocking.exceptions"], 0, "no CB exceptions at startup");
 });
 
diff --git a/browser/components/nsBrowserGlue.js b/browser/components/nsBrowserGlue.js
index 669afc8d57c5..73be5c71141e 100644
--- a/browser/components/nsBrowserGlue.js
+++ b/browser/components/nsBrowserGlue.js
@@ -1364,9 +1364,6 @@ BrowserGlue.prototype = {
     let cookieBehavior = Services.prefs.getIntPref("network.cookie.cookieBehavior");
     Services.telemetry.getHistogramById("COOKIE_BEHAVIOR").add(cookieBehavior);
 
-    let contentBlockingEnabled = Services.prefs.getBoolPref("browser.contentblocking.enabled");
-    Services.telemetry.scalarSet("contentblocking.enabled", contentBlockingEnabled);
-
     let exceptions = 0;
     for (let permission of Services.perms.enumerator) {
       if (permission.type == "trackingprotection") {
diff --git a/browser/components/uitour/test/browser_contentBlocking.js b/browser/components/uitour/test/browser_contentBlocking.js
index 56a46feb053a..e9fa1b032a33 100644
--- a/browser/components/uitour/test/browser_contentBlocking.js
+++ b/browser/components/uitour/test/browser_contentBlocking.js
@@ -1,7 +1,6 @@
 "use strict";
 
 const PREF_INTRO_COUNT = "browser.contentblocking.introCount";
-const PREF_CB_ENABLED = "browser.contentblocking.enabled";
 const PREF_TP_ENABLED = "privacy.trackingprotection.enabled";
 const BENIGN_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/benignPage.html";
 const TRACKING_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/trackingPage.html";
@@ -12,7 +11,6 @@ var {UrlClassifierTestUtils} = ChromeUtils.import("resource://testing-common/Url
 
 registerCleanupFunction(function() {
   UrlClassifierTestUtils.cleanupTestTrackers();
-  Services.prefs.clearUserPref(PREF_CB_ENABLED);
   Services.prefs.clearUserPref(PREF_TP_ENABLED);
   Services.prefs.clearUserPref(PREF_INTRO_COUNT);
 });
@@ -22,7 +20,6 @@ function allowOneIntro() {
 }
 
 add_task(async function setup_test() {
-  Services.prefs.setBoolPref(PREF_CB_ENABLED, true);
   Services.prefs.setBoolPref(PREF_TP_ENABLED, true);
   await UrlClassifierTestUtils.addTestTrackers();
 });
diff --git a/browser/components/uitour/test/browser_trackingProtection.js b/browser/components/uitour/test/browser_trackingProtection.js
index 3e3d620c84f9..353309c1cf27 100644
--- a/browser/components/uitour/test/browser_trackingProtection.js
+++ b/browser/components/uitour/test/browser_trackingProtection.js
@@ -1,7 +1,6 @@
 "use strict";
 
 const PREF_INTRO_COUNT = "browser.contentblocking.introCount";
-const PREF_CB_ENABLED = "browser.contentblocking.enabled";
 const PREF_TP_ENABLED = "privacy.trackingprotection.enabled";
 const BENIGN_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/benignPage.html";
 const TRACKING_PAGE = "http://tracking.example.org/browser/browser/base/content/test/trackingUI/trackingPage.html";
@@ -12,7 +11,6 @@ var {UrlClassifierTestUtils} = ChromeUtils.import("resource://testing-common/Url
 
 registerCleanupFunction(function() {
   UrlClassifierTestUtils.cleanupTestTrackers();
-  Services.prefs.clearUserPref(PREF_CB_ENABLED);
   Services.prefs.clearUserPref(PREF_TP_ENABLED);
 });
 
@@ -21,7 +19,6 @@ function allowOneIntro() {
 }
 
 add_task(async function setup_test() {
-  Services.prefs.setBoolPref(PREF_CB_ENABLED, true);
   Services.prefs.setBoolPref(PREF_TP_ENABLED, true);
   await UrlClassifierTestUtils.addTestTrackers();
 });
diff --git a/browser/themes/shared/controlcenter/panel.inc.css b/browser/themes/shared/controlcenter/panel.inc.css
index 3ef6b62360c0..dcce5116daaa 100644
--- a/browser/themes/shared/controlcenter/panel.inc.css
+++ b/browser/themes/shared/controlcenter/panel.inc.css
@@ -400,17 +400,7 @@ description#identity-popup-content-verifier,
   stroke: #d7b600;
 }
 
-#identity-popup-content-blocking-content[enabled][hasException] #identity-popup-content-blocking-disabled-label-global {
-  display: none;
-}
-
-#identity-popup-content-blocking-content:not([enabled]) #identity-popup-content-blocking-disabled-label {
-  display: -moz-box;
-  background-color: #d70022;
-  stroke: #d70022;
-}
-
-#identity-popup-content-blocking-content:not([enabled]) #identity-popup-content-blocking-disabled-label-exception {
+#identity-popup-content-blocking-content[hasException] #identity-popup-content-blocking-disabled-label-global {
   display: none;
 }
 
@@ -444,7 +434,7 @@ description#identity-popup-content-verifier,
   display: none;
 }
 
-#identity-popup-content-blocking-content[enabled][hasException] .identity-popup-content-blocking-category-state-label,
+#identity-popup-content-blocking-content[hasException] .identity-popup-content-blocking-category-state-label,
 .identity-popup-content-blocking-category:not(.blocked) .identity-popup-content-blocking-category-state-label {
   display: none;
 }
@@ -480,10 +470,9 @@ description#identity-popup-content-verifier,
   margin-top: 6px;
 }
 
-/* Hide the "report breakage" button if TP is off or we have not detected any
- * trackers (except if the user added an exception, in which case they might
- * still (especially!) want to report the breakage). */
-#identity-popup-content-blocking-content:not([enabled]) #identity-popup-content-blocking-report-breakage,
+/* Hide the "report breakage" button if we have not detected any trackers
+ * (except if the user added an exception, in which case they might still
+ * (especially!) want to report the breakage). */
 #identity-popup-content-blocking-content:not([active]):not([hasException]) #identity-popup-content-blocking-report-breakage {
   display: none;
 }
@@ -494,7 +483,7 @@ description#identity-popup-content-verifier,
 /* Offer to permanently add an exception in normal mode. */
 #main-window[privatebrowsingmode] #identity-popup-content-blocking-content[active]:not([hasException]) > #tracking-action-unblock-private,
 /* If there's an exception just offer to remove the exception again. */
-#identity-popup-content-blocking-content[enabled][hasException] > #tracking-action-block {
+#identity-popup-content-blocking-content[hasException] > #tracking-action-block {
   display: -moz-box;
 }
 
diff --git a/toolkit/components/telemetry/Scalars.yaml b/toolkit/components/telemetry/Scalars.yaml
index 110b63ccd6b0..64dc611325ee 100644
--- a/toolkit/components/telemetry/Scalars.yaml
+++ b/toolkit/components/telemetry/Scalars.yaml
@@ -442,20 +442,6 @@ security:
       - main
 
 contentblocking:
-  enabled:
-    bug_numbers:
-      - 1484251
-    description: >
-      Whether content blocking was enabled at startup.
-    expires: never
-    kind: boolean
-    notification_emails:
-      - jhofmann@mozilla.com
-      - pdol@mozilla.com
-      - seceng-telemetry@mozilla.com
-    release_channel_collection: opt-out
-    record_in_processes:
-      - main
   exceptions:
     bug_numbers:
       - 1484251