diff --git a/android/java/org/chromium/chrome/browser/app/BraveActivity.java b/android/java/org/chromium/chrome/browser/app/BraveActivity.java
index a702a54a05a4..ba02e7e49232 100644
--- a/android/java/org/chromium/chrome/browser/app/BraveActivity.java
+++ b/android/java/org/chromium/chrome/browser/app/BraveActivity.java
@@ -113,6 +113,7 @@
 import org.chromium.chrome.browser.crypto_wallet.util.Utils;
 import org.chromium.chrome.browser.crypto_wallet.util.WalletUtils;
 import org.chromium.chrome.browser.custom_layout.popup_window_tooltip.PopupWindowTooltip;
+import org.chromium.chrome.browser.customtabs.CustomTabActivity;
 import org.chromium.chrome.browser.dependency_injection.ChromeActivityComponent;
 import org.chromium.chrome.browser.flags.ChromeFeatureList;
 import org.chromium.chrome.browser.flags.ChromeSwitches;
@@ -1653,23 +1654,29 @@ public void showDormantUsersEngagementDialog(String notificationType) {
         }
     }
 
-    static public ChromeTabbedActivity getChromeTabbedActivity() {
+    private static Activity getActivityOfType(Class<?> classOfActivity) {
         for (Activity ref : ApplicationStatus.getRunningActivities()) {
-            if (!(ref instanceof ChromeTabbedActivity)) continue;
+            if (!classOfActivity.isInstance(ref)) continue;
 
-            return (ChromeTabbedActivity)ref;
+            return ref;
         }
 
         return null;
     }
 
-    static public BraveActivity getBraveActivity() {
-        for (Activity ref : ApplicationStatus.getRunningActivities()) {
-            if (!(ref instanceof BraveActivity)) continue;
+    static public ChromeTabbedActivity getChromeTabbedActivity() {
+        return (ChromeTabbedActivity) getActivityOfType(ChromeTabbedActivity.class);
+    }
 
-            return (BraveActivity)ref;
-        }
+    static public CustomTabActivity getCustomTabActivity() {
+        return (CustomTabActivity) getActivityOfType(CustomTabActivity.class);
+    }
 
+    static public BraveActivity getBraveActivity() {
+        BraveActivity activity = (BraveActivity) getActivityOfType(BraveActivity.class);
+        if (activity != null) {
+            return activity;
+        }
         return null;
     }
 
diff --git a/android/java/org/chromium/chrome/browser/shields/BraveShieldsHandler.java b/android/java/org/chromium/chrome/browser/shields/BraveShieldsHandler.java
index bbbbd1ffc751..37c37035b374 100644
--- a/android/java/org/chromium/chrome/browser/shields/BraveShieldsHandler.java
+++ b/android/java/org/chromium/chrome/browser/shields/BraveShieldsHandler.java
@@ -118,7 +118,7 @@ public BlockersInfo() {
         public ArrayList<String> mBlockerNames;
     }
 
-    private final Context mContext;
+    private Context mContext;
     private PopupWindow mPopupWindow;
     private AnimatorSet mMenuItemEnterAnimator;
     private BraveShieldsMenuObserver mMenuObserver;
@@ -282,8 +282,22 @@ public void addObserver(BraveShieldsMenuObserver menuObserver) {
         mMenuObserver = menuObserver;
     }
 
+    private void ensureInitializedForCustomTabs() {
+        if (mHardwareButtonMenuAnchor == null && mContext == null) {
+            mContext = BraveActivity.getCustomTabActivity();
+            mHardwareButtonMenuAnchor = ((Activity) mContext).findViewById(R.id.menu_anchor_stub);
+        }
+    }
+
     public void show(View anchorView, Tab tab) {
-        if (mHardwareButtonMenuAnchor == null) return;
+        // Current class can  be initialized by WarmupManager.inflateViewHierarchy
+        // prior to creation of proper activity. In such case activity is available later.
+        // Try to find it, and give up if somehow we won't be able.
+        ensureInitializedForCustomTabs();
+
+        if (mHardwareButtonMenuAnchor == null || mContext == null) {
+            return;
+        }
 
         mHost = tab.getUrl().getSpec();
         mTitle = tab.getUrl().getHost();
@@ -297,8 +311,9 @@ public void show(View anchorView, Tab tab) {
         updateValues(mTabId);
     }
 
-    public PopupWindow showPopupMenu(View anchorView) {
-        if (mContext == null) return null;
+    private PopupWindow showPopupMenu(View anchorView) {
+        assert (mContext != null);
+        assert (mHardwareButtonMenuAnchor != null);
 
         int rotation = ((Activity)mContext).getWindowManager().getDefaultDisplay().getRotation();
         // This fixes the bug where the bottom of the menu starts at the top of