diff --git a/accessible/base/nsAccessibilityService.cpp b/accessible/base/nsAccessibilityService.cpp
index 926919109361..25ce125ad767 100644
--- a/accessible/base/nsAccessibilityService.cpp
+++ b/accessible/base/nsAccessibilityService.cpp
@@ -197,8 +197,6 @@ static bool MustBeGenericAccessible(nsIContent* aContent,
                                     DocAccessible* aDocument) {
   nsIFrame* frame = aContent->GetPrimaryFrame();
   MOZ_ASSERT(frame);
-  nsAutoCString overflow;
-  frame->Style()->GetComputedPropertyValue(eCSSProperty_overflow, overflow);
   // If the frame has been transformed, and the content has any children, we
   // should create an Accessible so that we can account for the transform when
   // calculating the Accessible's bounds using the parent process cache.
@@ -209,8 +207,7 @@ static bool MustBeGenericAccessible(nsIContent* aContent,
   return aContent->HasChildren() && !aContent->IsXULElement() &&
          (frame->IsTransformed() || frame->IsStickyPositioned() ||
           (frame->StyleDisplay()->mPosition == StylePositionProperty::Fixed &&
-           nsLayoutUtils::IsReallyFixedPos(frame)) ||
-          overflow.Equals("hidden"_ns));
+           nsLayoutUtils::IsReallyFixedPos(frame)));
 }
 
 /**
diff --git a/accessible/generic/LocalAccessible.cpp b/accessible/generic/LocalAccessible.cpp
index 21e1978b07c4..b09cf86b2588 100644
--- a/accessible/generic/LocalAccessible.cpp
+++ b/accessible/generic/LocalAccessible.cpp
@@ -3619,17 +3619,6 @@ already_AddRefed<AccAttributes> LocalAccessible::BundleFieldsForCache(
     } else if (aUpdateType != CacheUpdateType::Initial) {
       fields->SetAttribute(nsGkAtoms::position, DeleteEntry());
     }
-
-    if (frame) {
-      nsAutoCString overflow;
-      frame->Style()->GetComputedPropertyValue(eCSSProperty_overflow, overflow);
-      RefPtr<nsAtom> overflowAtom = NS_Atomize(overflow);
-      if (overflowAtom == nsGkAtoms::hidden) {
-        fields->SetAttribute(nsGkAtoms::overflow, nsGkAtoms::hidden);
-      } else if (aUpdateType != CacheUpdateType::Initial) {
-        fields->SetAttribute(nsGkAtoms::overflow, DeleteEntry());
-      }
-    }
   }
 
   if (aCacheDomain & CacheDomain::Table) {
@@ -3834,19 +3823,6 @@ void LocalAccessible::MaybeQueueCacheUpdateForStyleChanges() {
   if (nsIFrame* frame = GetFrame()) {
     const ComputedStyle* newStyle = frame->Style();
 
-    nsAutoCString oldOverflow, newOverflow;
-    mOldComputedStyle->GetComputedPropertyValue(eCSSProperty_overflow,
-                                                oldOverflow);
-    newStyle->GetComputedPropertyValue(eCSSProperty_overflow, newOverflow);
-
-    if (oldOverflow != newOverflow) {
-      RefPtr<nsAtom> oldAtom = NS_Atomize(oldOverflow);
-      RefPtr<nsAtom> newAtom = NS_Atomize(newOverflow);
-      if (oldAtom == nsGkAtoms::hidden || newAtom == nsGkAtoms::hidden) {
-        mDoc->QueueCacheUpdate(this, CacheDomain::Style);
-      }
-    }
-
     nsAutoCString oldDisplay, newDisplay;
     mOldComputedStyle->GetComputedPropertyValue(eCSSProperty_display,
                                                 oldDisplay);
diff --git a/accessible/ipc/RemoteAccessibleBase.cpp b/accessible/ipc/RemoteAccessibleBase.cpp
index 45c3422c6a1c..0d932f7e21f8 100644
--- a/accessible/ipc/RemoteAccessibleBase.cpp
+++ b/accessible/ipc/RemoteAccessibleBase.cpp
@@ -629,17 +629,6 @@ bool RemoteAccessibleBase<Derived>::IsFixedPos() const {
   return false;
 }
 
-template <class Derived>
-bool RemoteAccessibleBase<Derived>::IsOverflowHidden() const {
-  MOZ_ASSERT(mCachedFields);
-  if (auto maybeOverflow =
-          mCachedFields->GetAttribute<RefPtr<nsAtom>>(nsGkAtoms::overflow)) {
-    return *maybeOverflow == nsGkAtoms::hidden;
-  }
-
-  return false;
-}
-
 template <class Derived>
 LayoutDeviceIntRect RemoteAccessibleBase<Derived>::BoundsWithOffset(
     Maybe<nsRect> aOffset, bool aBoundsAreForHittesting) const {
@@ -720,12 +709,11 @@ LayoutDeviceIntRect RemoteAccessibleBase<Derived>::BoundsWithOffset(
           // that the bounds we've calculated so far are constrained to the
           // bounds of the scroll area. Without this, we'll "hit" the off-screen
           // portions of accs that are are partially (but not fully) within the
-          // scroll area. This is also a problem for accs with overflow:hidden;
-          if (aBoundsAreForHittesting &&
-              (hasScrollArea || remoteAcc->IsOverflowHidden())) {
-            nsRect selfRelativeVisibleBounds(0, 0, remoteBounds.width,
-                                             remoteBounds.height);
-            bounds = bounds.SafeIntersect(selfRelativeVisibleBounds);
+          // scroll area.
+          if (aBoundsAreForHittesting && hasScrollArea) {
+            nsRect selfRelativeScrollBounds(0, 0, remoteBounds.width,
+                                            remoteBounds.height);
+            bounds = bounds.SafeIntersect(selfRelativeScrollBounds);
           }
         }
         if (remoteAcc->IsDoc()) {
diff --git a/accessible/ipc/RemoteAccessibleBase.h b/accessible/ipc/RemoteAccessibleBase.h
index b2fb411a3e41..30a0891bd26e 100644
--- a/accessible/ipc/RemoteAccessibleBase.h
+++ b/accessible/ipc/RemoteAccessibleBase.h
@@ -443,7 +443,6 @@ class RemoteAccessibleBase : public Accessible, public HyperTextAccessibleBase {
   LayoutDeviceIntRect BoundsWithOffset(
       Maybe<nsRect> aOffset, bool aBoundsAreForHittesting = false) const;
   bool IsFixedPos() const;
-  bool IsOverflowHidden() const;
 
   // This function is used exclusively for hit testing.
   bool ContainsPoint(int32_t aX, int32_t aY);
diff --git a/accessible/tests/browser/hittest/browser_test_general.js b/accessible/tests/browser/hittest/browser_test_general.js
index 16f8369da063..af8f6ac94e2d 100644
--- a/accessible/tests/browser/hittest/browser_test_general.js
+++ b/accessible/tests/browser/hittest/browser_test_general.js
@@ -232,47 +232,3 @@ addAccessibleTask(
     iframeAttrs: { style: "width: 600px; height: 600px; padding: 10px;" },
   }
 );
-
-/**
- * Verify that hit testing returns the proper accessible when one acc content
- * is partially hidden due to overflow:hidden;
- */
-addAccessibleTask(
-  `
-  <style>
-    div div {
-      overflow: hidden;
-      font-family: monospace;
-      width: 2ch;
-    }
-  </style>
-  <div id="container" style="display: flex; flex-direction: row-reverse;">
-    <div id="aNode">abcde</div><div id="fNode">fghij</div>
-  </div>`,
-  async function(browser, docAcc) {
-    const container = findAccessibleChildByID(docAcc, "container");
-    const aNode = findAccessibleChildByID(docAcc, "aNode");
-    const fNode = findAccessibleChildByID(docAcc, "fNode");
-    const dpr = await getContentDPR(browser);
-    const [, , containerWidth] = Layout.getBounds(container, dpr);
-    const [, , aNodeWidth] = Layout.getBounds(aNode, dpr);
-
-    await testChildAtPoint(
-      dpr,
-      containerWidth - 1,
-      1,
-      container,
-      aNode,
-      aNode.firstChild
-    );
-    await testChildAtPoint(
-      dpr,
-      containerWidth - aNodeWidth - 1,
-      1,
-      container,
-      fNode,
-      fNode.firstChild
-    );
-  },
-  { chrome: true, iframe: true, remoteIframe: true }
-);
diff --git a/accessible/tests/browser/tree/browser.ini b/accessible/tests/browser/tree/browser.ini
index bb4aedd1492d..62b45623eda1 100644
--- a/accessible/tests/browser/tree/browser.ini
+++ b/accessible/tests/browser/tree/browser.ini
@@ -12,7 +12,6 @@ prefs =
 skip-if = true || (verify && !debug && (os == 'linux')) #Bug 1445513
 [browser_browser_element.js]
 [browser_css_content_visibility.js]
-[browser_general.js]
 [browser_lazy_tabs.js]
 [browser_searchbar.js]
 [browser_shadowdom.js]
diff --git a/accessible/tests/browser/tree/browser_general.js b/accessible/tests/browser/tree/browser_general.js
deleted file mode 100644
index da23982899bf..000000000000
--- a/accessible/tests/browser/tree/browser_general.js
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Any copyright is dedicated to the Public Domain.
- * http://creativecommons.org/publicdomain/zero/1.0/ */
-
-"use strict";
-
-/* import-globals-from ../../mochitest/role.js */
-loadScripts({ name: "role.js", dir: MOCHITESTS_DIR });
-
-/**
- * Verify adding `overflow:hidden;` styling to a div causes it to
- * get an accessible.
- */
-addAccessibleTask(`<p>hello world</p>`, async function(browser, docAcc) {
-  const originalTree = { DOCUMENT: [{ PARAGRAPH: [{ TEXT_LEAF: [] }] }] };
-
-  testAccessibleTree(docAcc, originalTree);
-  info("Adding div element");
-  await contentSpawnMutation(
-    browser,
-    { unexpected: [[EVENT_REORDER, docAcc]] },
-    function() {
-      const d = content.document.createElement("div");
-      content.document.body.appendChild(d);
-    }
-  );
-
-  testAccessibleTree(docAcc, originalTree);
-  info("Adding overflow:hidden styling to div");
-  await contentSpawnMutation(
-    browser,
-    { expected: [[EVENT_REORDER, docAcc]] },
-    function() {
-      content.document.body.lastElementChild.setAttribute(
-        "style",
-        "overflow:hidden;"
-      );
-    }
-  );
-
-  testAccessibleTree(docAcc, {
-    DOCUMENT: [{ PARAGRAPH: [{ TEXT_LEAF: [] }] }, { SECTION: [] }],
-  });
-});