diff --git a/browser/components/resistfingerprinting/test/browser/browser.ini b/browser/components/resistfingerprinting/test/browser/browser.ini
index 485bcbf62067..e879420910df 100644
--- a/browser/components/resistfingerprinting/test/browser/browser.ini
+++ b/browser/components/resistfingerprinting/test/browser/browser.ini
@@ -53,28 +53,6 @@ https_first_disabled = true
 [browser_roundedWindow_open_max_inner.js]
 [browser_roundedWindow_open_mid_inner.js]
 [browser_roundedWindow_open_min_inner.js]
-[browser_roundedWindow_windowSetting_max_inner.js]
-skip-if =
-  os == 'linux' && socketprocess_networking
-  os == "linux" && fission && !swgl # high frequency intermittent
-[browser_roundedWindow_windowSetting_max_outer.js]
-skip-if =
-  os == 'linux' && socketprocess_networking
-  os == "linux" && fission && !swgl # high frequency intermittent
-[browser_roundedWindow_windowSetting_mid_inner.js]
-skip-if =
-  os == 'linux' && socketprocess_networking
-  os == "linux" && fission && !swgl # high frequency intermittent
-[browser_roundedWindow_windowSetting_mid_outer.js]
-skip-if = os == "linux" && bits == 64 && os_version == "18.04"
-[browser_roundedWindow_windowSetting_min_inner.js]
-skip-if =
-  os == 'linux' && socketprocess_networking
-  os == "linux" && fission && !swgl # high frequency intermittent
-[browser_roundedWindow_windowSetting_min_outer.js]
-skip-if =
-  os == 'linux' && socketprocess_networking
-  os == "linux" && fission && !swgl # high frequency intermittent
 [browser_spoofing_keyboard_event.js]
 skip-if = (debug || asan) && os == "linux" && bits == 64 #Bug 1518179
 [browser_timezone.js]
diff --git a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_max_inner.js b/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_max_inner.js
deleted file mode 100644
index c0147be3fc3e..000000000000
--- a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_max_inner.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Bug 1330882 - A test case for setting window size through window.innerWidth/Height
- *   when fingerprinting resistance is enabled. This test is for maximum values.
- */
-
-WindowSettingTest.run(
-  [
-    {
-      settingWidth: 1025,
-      settingHeight: 1050,
-      targetWidth: 1000,
-      targetHeight: 1000,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 9999,
-      settingHeight: 9999,
-      targetWidth: 1000,
-      targetHeight: 1000,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 999,
-      settingHeight: 999,
-      targetWidth: 1000,
-      targetHeight: 1000,
-      initWidth: 200,
-      initHeight: 100,
-    },
-  ],
-  false
-);
diff --git a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_max_outer.js b/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_max_outer.js
deleted file mode 100644
index d06a55b5d238..000000000000
--- a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_max_outer.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Bug 1330882 - A test case for setting window size through window.outerWidth/Height
- *   when fingerprinting resistance is enabled. This test is for maximum values.
- */
-
-WindowSettingTest.run(
-  [
-    {
-      settingWidth: 1025,
-      settingHeight: 1050,
-      targetWidth: 1000,
-      targetHeight: 1000,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 9999,
-      settingHeight: 9999,
-      targetWidth: 1000,
-      targetHeight: 1000,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 999,
-      settingHeight: 999,
-      targetWidth: 1000,
-      targetHeight: 1000,
-      initWidth: 200,
-      initHeight: 100,
-    },
-  ],
-  true
-);
diff --git a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_mid_inner.js b/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_mid_inner.js
deleted file mode 100644
index 097e911f4423..000000000000
--- a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_mid_inner.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Bug 1330882 - A test case for setting window size through window.innerWidth/Height
- *   when fingerprinting resistance is enabled. This test is for middle values.
- */
-
-WindowSettingTest.run(
-  [
-    {
-      settingWidth: 600,
-      settingHeight: 600,
-      targetWidth: 600,
-      targetHeight: 600,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 599,
-      settingHeight: 599,
-      targetWidth: 600,
-      targetHeight: 600,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 401,
-      settingHeight: 501,
-      targetWidth: 600,
-      targetHeight: 600,
-      initWidth: 200,
-      initHeight: 100,
-    },
-  ],
-  false
-);
diff --git a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_mid_outer.js b/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_mid_outer.js
deleted file mode 100644
index b50d30b33f0c..000000000000
--- a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_mid_outer.js
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Bug 1330882 - A test case for setting window size through window.outerWidth/Height
- *   when fingerprinting resistance is enabled. This test is for middle values.
- */
-
-WindowSettingTest.run(
-  [
-    {
-      settingWidth: 600,
-      settingHeight: 600,
-      targetWidth: 600,
-      targetHeight: 600,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 599,
-      settingHeight: 599,
-      targetWidth: 600,
-      targetHeight: 600,
-      initWidth: 200,
-      initHeight: 100,
-    },
-    {
-      settingWidth: 401,
-      settingHeight: 501,
-      targetWidth: 600,
-      targetHeight: 600,
-      initWidth: 200,
-      initHeight: 100,
-    },
-  ],
-  true
-);
diff --git a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_min_inner.js b/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_min_inner.js
deleted file mode 100644
index f79e46e78f42..000000000000
--- a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_min_inner.js
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Bug 1330882 - A test case for setting window size through window.innerWidth/Height
- *   when fingerprinting resistance is enabled. This test is for minimum values.
- */
-
-WindowSettingTest.run(
-  [
-    {
-      settingWidth: 199,
-      settingHeight: 99,
-      targetWidth: 200,
-      targetHeight: 100,
-      initWidth: 1000,
-      initHeight: 1000,
-    },
-    {
-      settingWidth: 10,
-      settingHeight: 10,
-      targetWidth: 200,
-      targetHeight: 100,
-      initWidth: 1000,
-      initHeight: 1000,
-    },
-  ],
-  false
-);
diff --git a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_min_outer.js b/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_min_outer.js
deleted file mode 100644
index 76b5e40f827b..000000000000
--- a/browser/components/resistfingerprinting/test/browser/browser_roundedWindow_windowSetting_min_outer.js
+++ /dev/null
@@ -1,26 +0,0 @@
-/*
- * Bug 1330882 - A test case for setting window size through window.outerWidth/Height
- *   when fingerprinting resistance is enabled. This test is for minimum values.
- */
-
-WindowSettingTest.run(
-  [
-    {
-      settingWidth: 199,
-      settingHeight: 99,
-      targetWidth: 200,
-      targetHeight: 100,
-      initWidth: 1000,
-      initHeight: 1000,
-    },
-    {
-      settingWidth: 10,
-      settingHeight: 10,
-      targetWidth: 200,
-      targetHeight: 100,
-      initWidth: 1000,
-      initHeight: 1000,
-    },
-  ],
-  true
-);
diff --git a/dom/base/nsGlobalWindowInner.cpp b/dom/base/nsGlobalWindowInner.cpp
index 7825471ea7d7..2c513b1dbbe0 100644
--- a/dom/base/nsGlobalWindowInner.cpp
+++ b/dom/base/nsGlobalWindowInner.cpp
@@ -7608,78 +7608,6 @@ void nsGlobalWindowInner::SetReplaceableWindowCoord(
     return;
   }
 
-  if (ShouldResistFingerprinting()) {
-    bool innerWidthSpecified = false;
-    bool innerHeightSpecified = false;
-    bool outerWidthSpecified = false;
-    bool outerHeightSpecified = false;
-
-    if (strcmp(aPropName, "innerWidth") == 0) {
-      innerWidthSpecified = true;
-    } else if (strcmp(aPropName, "innerHeight") == 0) {
-      innerHeightSpecified = true;
-    } else if (strcmp(aPropName, "outerWidth") == 0) {
-      outerWidthSpecified = true;
-    } else if (strcmp(aPropName, "outerHeight") == 0) {
-      outerHeightSpecified = true;
-    }
-
-    if (innerWidthSpecified || innerHeightSpecified || outerWidthSpecified ||
-        outerHeightSpecified) {
-      nsCOMPtr<nsIBaseWindow> treeOwnerAsWin = outer->GetTreeOwnerWindow();
-      nsCOMPtr<nsIScreenManager> screenMgr(
-          do_GetService("@mozilla.org/gfx/screenmanager;1"));
-
-      if (treeOwnerAsWin && screenMgr) {
-        // Acquire current window size.
-        //
-        // FIXME: This needs to account for full zoom like the outer window code
-        // does! Ideally move there?
-        auto cssScale = treeOwnerAsWin->UnscaledDevicePixelsPerCSSPixel();
-        LayoutDeviceIntRect devWinRect = treeOwnerAsWin->GetPositionAndSize();
-        CSSIntRect cssWinRect = RoundedToInt(devWinRect / cssScale);
-
-        // Acquire content window size.
-        CSSSize contentSize;
-        outer->GetInnerSize(contentSize);
-
-        nsCOMPtr<nsIScreen> screen = screenMgr->ScreenForRect(RoundedToInt(
-            devWinRect / treeOwnerAsWin->DevicePixelsPerDesktopPixel()));
-        if (screen) {
-          int32_t roundedValue = std::round(value);
-          int32_t* targetContentWidth = nullptr;
-          int32_t* targetContentHeight = nullptr;
-          int32_t inputWidth = 0;
-          int32_t inputHeight = 0;
-          int32_t unused = 0;
-
-          CSSIntSize availScreenSize =
-              RoundedToInt(screen->GetAvailRect().Size() / cssScale);
-
-          // Calculate the chrome UI size.
-          CSSIntSize chromeSize = cssWinRect.Size() - RoundedToInt(contentSize);
-
-          if (innerWidthSpecified || outerWidthSpecified) {
-            inputWidth = value;
-            targetContentWidth = &roundedValue;
-            targetContentHeight = &unused;
-          } else if (innerHeightSpecified || outerHeightSpecified) {
-            inputHeight = value;
-            targetContentWidth = &unused;
-            targetContentHeight = &roundedValue;
-          }
-
-          nsContentUtils::CalcRoundedWindowSizeForResistingFingerprinting(
-              chromeSize.width, chromeSize.height, availScreenSize.width,
-              availScreenSize.height, inputWidth, inputHeight,
-              outerWidthSpecified, outerHeightSpecified, targetContentWidth,
-              targetContentHeight);
-          value = T(roundedValue);
-        }
-      }
-    }
-  }
-
   (this->*aSetter)(value, aCallerType, aError);
 }