diff --git a/browser/base/content/test/permissions/browser_canvas_fingerprinting_resistance.js b/browser/base/content/test/permissions/browser_canvas_fingerprinting_resistance.js
index 2834618cbe5b..7a8a2931dbf1 100644
--- a/browser/base/content/test/permissions/browser_canvas_fingerprinting_resistance.js
+++ b/browser/base/content/test/permissions/browser_canvas_fingerprinting_resistance.js
@@ -3,9 +3,7 @@
  * required for canvas data extraction.
  * This tests whether the site permission prompt for canvas data extraction
  * works properly.
- * When "privacy.resistFingerprinting.randomDataOnCanvasExtract" is true,
- * canvas data extraction results in random data, and when it is false, canvas
- * data extraction results in all-white data.
+ * Canvas data extraction should result in random data.
  */
 "use strict";
 
@@ -48,8 +46,6 @@ function initTab() {
     return canvas;
   };
 
-  let placeholder = drawCanvas("white");
-  contentWindow.kPlaceholderData = placeholder.toDataURL();
   let canvas = drawCanvas("cyan", "canvas-id-canvas");
   contentWindow.kPlacedData = canvas.toDataURL();
   is(
@@ -57,17 +53,9 @@ function initTab() {
     contentWindow.kPlacedData,
     "privacy.resistFingerprinting = false, canvas data == placed data"
   );
-  isnot(
-    canvas.toDataURL(),
-    contentWindow.kPlaceholderData,
-    "privacy.resistFingerprinting = false, canvas data != placeholder data"
-  );
 }
 
-function enableResistFingerprinting(
-  randomDataOnCanvasExtract,
-  autoDeclineNoInput
-) {
+function enableResistFingerprinting(autoDeclineNoInput) {
   return SpecialPowers.pushPrefEnv({
     set: [
       ["privacy.fingerprintingProtection", true],
@@ -78,10 +66,6 @@ function enableResistFingerprinting(
             ? ",+CanvasExtractionBeforeUserInputIsBlocked"
             : ""),
       ],
-      [
-        "privacy.resistFingerprinting.randomDataOnCanvasExtract",
-        randomDataOnCanvasExtract,
-      ],
     ],
   });
 }
@@ -94,7 +78,7 @@ function promisePopupHidden() {
   return BrowserTestUtils.waitForEvent(PopupNotifications.panel, "popuphidden");
 }
 
-function extractCanvasData(randomDataOnCanvasExtract, grantPermission) {
+function extractCanvasData(grantPermission) {
   let contentWindow = content.wrappedJSObject;
   let canvas = contentWindow.document.getElementById("canvas-id-canvas");
   let canvasData = canvas.toDataURL();
@@ -104,51 +88,18 @@ function extractCanvasData(randomDataOnCanvasExtract, grantPermission) {
       contentWindow.kPlacedData,
       "privacy.resistFingerprinting = true, permission granted, canvas data == placed data"
     );
-    if (!randomDataOnCanvasExtract) {
-      isnot(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = false, permission granted, canvas data != placeholderdata"
-      );
-    }
   } else if (grantPermission === false) {
     isnot(
       canvasData,
       contentWindow.kPlacedData,
       "privacy.resistFingerprinting = true, permission denied, canvas data != placed data"
     );
-    if (!randomDataOnCanvasExtract) {
-      is(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = false, permission denied, canvas data == placeholderdata"
-      );
-    } else {
-      isnot(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = true, permission denied, canvas data != placeholderdata"
-      );
-    }
   } else {
     isnot(
       canvasData,
       contentWindow.kPlacedData,
       "privacy.resistFingerprinting = true, requesting permission, canvas data != placed data"
     );
-    if (!randomDataOnCanvasExtract) {
-      is(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = false, requesting permission, canvas data == placeholderdata"
-      );
-    } else {
-      isnot(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = true, requesting permission, canvas data != placeholderdata"
-      );
-    }
   }
 }
 
@@ -170,19 +121,11 @@ function testPermission() {
   return Services.perms.testPermissionFromPrincipal(kPrincipal, kPermission);
 }
 
-async function withNewTabNoInput(
-  randomDataOnCanvasExtract,
-  grantPermission,
-  browser
-) {
+async function withNewTabNoInput(grantPermission, browser) {
   await SpecialPowers.spawn(browser, [], initTab);
-  await enableResistFingerprinting(randomDataOnCanvasExtract, false);
+  await enableResistFingerprinting(false);
   let popupShown = promisePopupShown();
-  await SpecialPowers.spawn(
-    browser,
-    [randomDataOnCanvasExtract],
-    extractCanvasData
-  );
+  await SpecialPowers.spawn(browser, [], extractCanvasData);
   await popupShown;
   let popupHidden = promisePopupHidden();
   if (grantPermission) {
@@ -194,34 +137,28 @@ async function withNewTabNoInput(
     await popupHidden;
     is(testPermission(), Services.perms.DENY_ACTION, "permission denied");
   }
-  await SpecialPowers.spawn(
-    browser,
-    [randomDataOnCanvasExtract, grantPermission],
-    extractCanvasData
-  );
+  await SpecialPowers.spawn(browser, [grantPermission], extractCanvasData);
   await SpecialPowers.popPrefEnv();
 }
 
-async function doTestNoInput(randomDataOnCanvasExtract, grantPermission) {
+async function doTestNoInput(grantPermission) {
   await BrowserTestUtils.withNewTab(
     kUrl,
-    withNewTabNoInput.bind(null, randomDataOnCanvasExtract, grantPermission)
+    withNewTabNoInput.bind(null, grantPermission)
   );
   Services.perms.removeFromPrincipal(kPrincipal, kPermission);
 }
 
 // With auto-declining disabled (not the default)
 // Tests clicking "Don't Allow" button of the permission prompt.
-add_task(doTestNoInput.bind(null, true, false));
-add_task(doTestNoInput.bind(null, false, false));
+add_task(doTestNoInput.bind(null, false));
 
 // Tests clicking "Allow" button of the permission prompt.
-add_task(doTestNoInput.bind(null, true, true));
-add_task(doTestNoInput.bind(null, false, true));
+add_task(doTestNoInput.bind(null, true));
 
-async function withNewTabAutoBlockNoInput(randomDataOnCanvasExtract, browser) {
+async function withNewTabAutoBlockNoInput(browser) {
   await SpecialPowers.spawn(browser, [], initTab);
-  await enableResistFingerprinting(randomDataOnCanvasExtract, true);
+  await enableResistFingerprinting(true);
 
   let noShowHandler = () => {
     ok(false, "The popup notification should not show in this case.");
@@ -235,11 +172,7 @@ async function withNewTabAutoBlockNoInput(randomDataOnCanvasExtract, browser) {
   );
 
   // Try to extract canvas data without user inputs.
-  await SpecialPowers.spawn(
-    browser,
-    [randomDataOnCanvasExtract],
-    extractCanvasData
-  );
+  await SpecialPowers.spawn(browser, [], extractCanvasData);
 
   await promisePopupObserver;
   info("There should be no popup shown on the panel.");
@@ -260,20 +193,16 @@ async function withNewTabAutoBlockNoInput(randomDataOnCanvasExtract, browser) {
   await SpecialPowers.popPrefEnv();
 }
 
-async function doTestAutoBlockNoInput(randomDataOnCanvasExtract) {
+async function doTestAutoBlockNoInput() {
   await BrowserTestUtils.withNewTab(
     kUrl,
-    withNewTabAutoBlockNoInput.bind(null, randomDataOnCanvasExtract)
+    withNewTabAutoBlockNoInput.bind(null)
   );
 }
 
-add_task(doTestAutoBlockNoInput.bind(null, true));
-add_task(doTestAutoBlockNoInput.bind(null, false));
+add_task(doTestAutoBlockNoInput.bind(null));
 
-function extractCanvasDataUserInput(
-  randomDataOnCanvasExtract,
-  grantPermission
-) {
+function extractCanvasDataUserInput(grantPermission) {
   let contentWindow = content.wrappedJSObject;
   let canvas = contentWindow.document.getElementById("canvas-id-canvas");
   let canvasData = canvas.toDataURL();
@@ -283,61 +212,24 @@ function extractCanvasDataUserInput(
       contentWindow.kPlacedData,
       "privacy.resistFingerprinting = true, permission granted, canvas data == placed data"
     );
-    if (!randomDataOnCanvasExtract) {
-      isnot(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = false, permission granted, canvas data != placeholderdata"
-      );
-    }
   } else if (grantPermission === false) {
     isnot(
       canvasData,
       contentWindow.kPlacedData,
       "privacy.resistFingerprinting = true, permission denied, canvas data != placed data"
     );
-    if (!randomDataOnCanvasExtract) {
-      is(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = false, permission denied, canvas data == placeholderdata"
-      );
-    } else {
-      isnot(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = true, permission denied, canvas data != placeholderdata"
-      );
-    }
   } else {
     isnot(
       canvasData,
       contentWindow.kPlacedData,
       "privacy.resistFingerprinting = true, requesting permission, canvas data != placed data"
     );
-    if (!randomDataOnCanvasExtract) {
-      is(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = false, requesting permission, canvas data == placeholderdata"
-      );
-    } else {
-      isnot(
-        canvasData,
-        contentWindow.kPlaceholderData,
-        "privacy.resistFingerprinting = true and randomDataOnCanvasExtract = true, requesting permission, canvas data != placeholderdata"
-      );
-    }
   }
 }
 
-async function withNewTabInput(
-  randomDataOnCanvasExtract,
-  grantPermission,
-  browser
-) {
+async function withNewTabInput(grantPermission, browser) {
   await SpecialPowers.spawn(browser, [], initTab);
-  await enableResistFingerprinting(randomDataOnCanvasExtract, true);
+  await enableResistFingerprinting(true);
   let popupShown = promisePopupShown();
   await SpecialPowers.spawn(browser, [], function () {
     E10SUtils.wrapHandlingUserInput(content, true, function () {
@@ -358,25 +250,23 @@ async function withNewTabInput(
   }
   await SpecialPowers.spawn(
     browser,
-    [randomDataOnCanvasExtract, grantPermission],
+    [grantPermission],
     extractCanvasDataUserInput
   );
   await SpecialPowers.popPrefEnv();
 }
 
-async function doTestInput(randomDataOnCanvasExtract, grantPermission) {
+async function doTestInput(grantPermission) {
   await BrowserTestUtils.withNewTab(
     kUrl,
-    withNewTabInput.bind(null, randomDataOnCanvasExtract, grantPermission)
+    withNewTabInput.bind(null, grantPermission)
   );
   Services.perms.removeFromPrincipal(kPrincipal, kPermission);
 }
 
 // With auto-declining enabled (the default)
 // Tests clicking "Don't Allow" button of the permission prompt.
-add_task(doTestInput.bind(null, true, false));
-add_task(doTestInput.bind(null, false, false));
+add_task(doTestInput.bind(null, false));
 
 // Tests clicking "Allow" button of the permission prompt.
-add_task(doTestInput.bind(null, true, true));
-add_task(doTestInput.bind(null, false, true));
+add_task(doTestInput.bind(null, true));
diff --git a/dom/canvas/GeneratePlaceholderCanvasData.h b/dom/canvas/GeneratePlaceholderCanvasData.h
index 87650e182764..4982ab5a96fe 100644
--- a/dom/canvas/GeneratePlaceholderCanvasData.h
+++ b/dom/canvas/GeneratePlaceholderCanvasData.h
@@ -17,18 +17,13 @@
 namespace mozilla::dom {
 
 /**
- * When privacy.resistFingerprinting.randomDataOnCanvasExtract is true, tries
- * to generate random data for placeholder canvas by sampling
- * RANDOM_BYTES_TO_SAMPLE bytes and then returning it. If this fails or if
- * privacy.resistFingerprinting.randomDataOnCanvasExtract is false, returns
- * nullptr.
+ * This function tries to generate random data for placeholder canvas by
+ * sampling RANDOM_BYTES_TO_SAMPLE bytes and then returning it. If it fails,
+ * returns nullptr.
  *
  * @return uint8_t*  output buffer
  */
 inline uint8_t* TryToGenerateRandomDataForPlaceholderCanvasData() {
-  if (!StaticPrefs::privacy_resistFingerprinting_randomDataOnCanvasExtract()) {
-    return nullptr;
-  }
   nsresult rv;
   nsCOMPtr<nsIRandomGenerator> rg =
       do_GetService("@mozilla.org/security/random-generator;1", &rv);
diff --git a/modules/libpref/init/StaticPrefList.yaml b/modules/libpref/init/StaticPrefList.yaml
index b719ccca63d3..2b41c4ed9b9b 100644
--- a/modules/libpref/init/StaticPrefList.yaml
+++ b/modules/libpref/init/StaticPrefList.yaml
@@ -14953,13 +14953,6 @@
   value: false
   mirror: always
 
-# Whether canvas extraction should result in random data. If false, canvas
-# extraction results in all-white, opaque pixel data.
-- name: privacy.resistFingerprinting.randomDataOnCanvasExtract
-  type: RelaxedAtomicBool
-  value: true
-  mirror: always
-
 # The log level for browser console messages logged in RFPHelper.sys.mjs. Change to
 # 'All' and restart to see the messages.
 - name: privacy.resistFingerprinting.jsmloglevel