diff --git a/Common/Data/Auxiliary/PriceScalingExtensions.cs b/Common/Data/Auxiliary/PriceScalingExtensions.cs
index 183fe2bba15a..6559393b85af 100644
--- a/Common/Data/Auxiliary/PriceScalingExtensions.cs
+++ b/Common/Data/Auxiliary/PriceScalingExtensions.cs
@@ -17,6 +17,7 @@
 using System;
 using System.Linq;
 using System.Collections.Generic;
+using System.ComponentModel;
 
 namespace QuantConnect.Data.Auxiliary
 {
@@ -80,6 +81,7 @@ public static decimal GetPriceScale(
         /// Determines the symbol to use to fetch it's factor file
         /// </summary>
         /// <remarks>This is useful for futures where the symbol to use is the canonical</remarks>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static Symbol GetFactorFileSymbol(this Symbol symbol)
         {
             return symbol.SecurityType == SecurityType.Future ? symbol.Canonical : symbol;
@@ -88,6 +90,7 @@ public static Symbol GetFactorFileSymbol(this Symbol symbol)
         /// <summary>
         /// Helper method to return an empty factor file
         /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static IFactorProvider GetEmptyFactorFile(this Symbol symbol)
         {
             if (symbol.SecurityType == SecurityType.Future)
diff --git a/Common/Data/SubscriptionDataConfigExtensions.cs b/Common/Data/SubscriptionDataConfigExtensions.cs
index 2a47c5788f50..2f5f19cbd209 100644
--- a/Common/Data/SubscriptionDataConfigExtensions.cs
+++ b/Common/Data/SubscriptionDataConfigExtensions.cs
@@ -14,6 +14,7 @@
 */
 
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Linq;
 using QuantConnect.Util;
 
@@ -114,6 +115,7 @@ public static void SetDataNormalizationMode(
         /// <remarks>One of the objectives of this method is to normalize the 'use mapping'
         /// check and void code duplication and related issues</remarks>
         /// <returns>True if ticker should be mapped</returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool TickerShouldBeMapped(this SubscriptionDataConfig config)
         {
             // we create an instance of the data type, if it is a custom type
@@ -129,6 +131,7 @@ public static bool TickerShouldBeMapped(this SubscriptionDataConfig config)
         /// check and void code duplication and related issues</remarks>
         /// <param name="liveMode">True, is this is a live mode data stream</param>
         /// <returns>True if ticker prices should be scaled</returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool PricesShouldBeScaled(this SubscriptionDataConfig config, bool liveMode = false)
         {
             if (config.IsCustomData || config.Symbol.Value.Contains("UNIVERSE"))
@@ -155,6 +158,7 @@ public static bool PricesShouldBeScaled(this SubscriptionDataConfig config, bool
         /// <remarks>Different than <see cref="PricesShouldBeScaled"/> because prices could be scale and no split and dividends
         /// really exist, like in the continuous futures case</remarks>
         /// <returns>True if this configuration requires split and divided handling</returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool EmitSplitsAndDividends(this SubscriptionDataConfig config)
         {
             return !config.IsCustomData && !config.Symbol.Value.Contains("UNIVERSE") && config.SecurityType == SecurityType.Equity;
@@ -163,6 +167,7 @@ public static bool EmitSplitsAndDividends(this SubscriptionDataConfig config)
         /// <summary>
         /// True if this configuration is associated with an asset which can have delisting events
         /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool CanBeDelisted(this SubscriptionDataConfig config)
         {
             return config.SecurityType.IsOption() || config.SecurityType == SecurityType.Future || config.SecurityType == SecurityType.Equity;
@@ -171,6 +176,7 @@ public static bool CanBeDelisted(this SubscriptionDataConfig config)
         /// <summary>
         /// Initializes a new instance of the <see cref="BaseData"/> type defined in <paramref name="config"/> with the symbol properly set
         /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static BaseData GetBaseDataInstance(this SubscriptionDataConfig config)
         {
             var instance = config.Type.GetBaseDataInstance();
diff --git a/Common/Extensions.cs b/Common/Extensions.cs
index e8405ee334c6..d3f0a7bde027 100644
--- a/Common/Extensions.cs
+++ b/Common/Extensions.cs
@@ -13,6 +13,7 @@
  * limitations under the License.
 */
 
+using System.ComponentModel;
 using System;
 using System.Collections;
 using System.Collections.Concurrent;
@@ -514,6 +515,7 @@ public static void ProtobufSerialize(this IBaseData baseData, Stream stream)
         /// Extension method to get security price is 0 messages for users
         /// </summary>
         /// <remarks>The value of this method is normalization</remarks>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static string GetZeroPriceMessage(this Symbol symbol)
         {
             return Messages.Extensions.ZeroPriceForSecurity(symbol);
@@ -2810,6 +2812,7 @@ public static string ResolutionToLower(this Resolution resolution)
         /// <param name="order">The <see cref="Order"/> being converted</param>
         /// <param name="transactionManager">The transaction manager, <see cref="SecurityTransactionManager"/></param>
         /// <returns></returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static OrderTicket ToOrderTicket(this Order order, SecurityTransactionManager transactionManager)
         {
             var limitPrice = 0m;
@@ -3559,6 +3562,7 @@ public static string RemoveFromStart(this string s, string start)
         /// Helper method to determine symbol for a live subscription
         /// </summary>
         /// <remarks>Useful for continuous futures where we subscribe to the underlying</remarks>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool TryGetLiveSubscriptionSymbol(this Symbol symbol, out Symbol mapped)
         {
             mapped = null;
@@ -3599,6 +3603,7 @@ public static DateTime GetDelistingDate(this Symbol symbol, MapFile mapFile = nu
         /// <summary>
         /// Helper method to determine if a given symbol is of custom data
         /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool IsCustomDataType<T>(this Symbol symbol)
         {
             return symbol.SecurityType == SecurityType.Base
@@ -4049,6 +4054,7 @@ public static OrderDirection GetOrderDirection(decimal quantity)
         /// <summary>
         /// Helper method to process an algorithms security changes, will add and remove securities according to them
         /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static void ProcessSecurityChanges(this IAlgorithm algorithm, SecurityChanges securityChanges)
         {
             foreach (var security in securityChanges.AddedSecurities)
@@ -4082,6 +4088,7 @@ public static void MakeTradable(this Security security)
         /// <summary>
         /// Helper method to set an algorithm runtime exception in a normalized fashion
         /// </summary>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static void SetRuntimeError(this IAlgorithm algorithm, Exception exception, string context)
         {
             Log.Error(exception, $"Extensions.SetRuntimeError(): {Messages.Extensions.RuntimeError(algorithm, context)}");
@@ -4216,6 +4223,7 @@ private static IEnumerable<Universe> CreateFutureChain(this IAlgorithm algorithm
         /// <param name="security">The found or added security instance</param>
         /// <param name="onError">Callback to invoke in case of unsupported security type</param>
         /// <returns>True if the security was found or added</returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool GetOrAddUnrequestedSecurity(this IAlgorithm algorithm, Symbol symbol, out Security security,
             Action<IReadOnlyCollection<SecurityType>> onError = null)
         {
@@ -4340,6 +4348,7 @@ public static SubscriptionDataConfig ToSubscriptionDataConfig(this Data.HistoryR
         /// dependency with the FF enumerators requiring that they receive aux data to properly handle delistings.
         /// Otherwise we would have issues with delisted symbols continuing to fill forward after expiry/delisting.
         /// Reference PR #5485 and related issues for more.</remarks>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool ShouldEmitData(this SubscriptionDataConfig config, BaseData data, bool isUniverse = false)
         {
             // For now we are only filtering Auxiliary data; so if its another type just return true or if it's a margin interest rate which we want to emit always
@@ -4494,6 +4503,7 @@ public static int GetListHashCode<T>(this IReadOnlyList<T> list)
         /// </summary>
         /// <param name="symbol">Type to check</param>
         /// <returns>True if it needs to be mapped</returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool RequiresMapping(this Symbol symbol)
         {
             switch (symbol.SecurityType)
diff --git a/Common/Orders/ContingentOrderExtensions.cs b/Common/Orders/ContingentOrderExtensions.cs
index cb0a408220d5..5dc3852fe43d 100644
--- a/Common/Orders/ContingentOrderExtensions.cs
+++ b/Common/Orders/ContingentOrderExtensions.cs
@@ -17,6 +17,7 @@
 using System.Linq;
 using QuantConnect.Logging;
 using System.Collections.Generic;
+using System.ComponentModel;
 
 namespace QuantConnect.Orders
 {
@@ -113,6 +114,7 @@ public static bool IsSameGroupOrder(this Order order, Order other)
         /// <param name="orders">List of orders in the set, sorted by id</param>
         /// <returns>False if any of the orders in the set is not yet found in the order provider. True otherwise</returns>
         /// <remarks>If the target order is not a contingent order, the resulting list will contain that single order alone</remarks>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool TryGetContingentOrders(this Order order, Func<int, Order> orderProvider, out List<Order> orders)
         {
             var contingency = order.Contingency;
@@ -166,6 +168,7 @@ public static bool TryGetContingentOrders(this Order order, Func<int, Order> ord
         /// <param name="order">Target order, which can be any of the orders in the set</param>
         /// <param name="orderProvider">Order provider to use to access the existing orders</param>
         /// <returns>The existing orders of the set, including the given one, sorted by id</returns>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static List<Order> GetExistingContingentOrders(this Order order, Func<int, Order> orderProvider)
         {
             var contingency = order.Contingency;
@@ -196,6 +199,7 @@ public static List<Order> GetExistingContingentOrders(this Order order, Func<int
         /// </summary>
         /// <param name="order">The parent order</param>
         /// <param name="contingentOrders">The orders in the set</param>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static IEnumerable<Order> GetContingentChildren(this Order order, IEnumerable<Order> contingentOrders)
         {
             var parent = order.GetContingencyLink(ContingencyRole.Parent);
@@ -211,6 +215,7 @@ public static IEnumerable<Order> GetContingentChildren(this Order order, IEnumer
         /// </summary>
         /// <param name="order">The child order</param>
         /// <param name="contingentOrders">The orders in the set</param>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static IEnumerable<Order> GetContingentParents(this Order order, IEnumerable<Order> contingentOrders)
         {
             var child = order.GetContingencyLink(ContingencyRole.Child);
@@ -227,6 +232,7 @@ public static IEnumerable<Order> GetContingentParents(this Order order, IEnumera
         /// </summary>
         /// <param name="order">The member order</param>
         /// <param name="contingentOrders">The orders in the set</param>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static IEnumerable<Order> GetContingentSiblings(this Order order, IEnumerable<Order> contingentOrders)
         {
             if (order.GetSiblingLink() == null)
@@ -241,6 +247,7 @@ public static IEnumerable<Order> GetContingentSiblings(this Order order, IEnumer
         /// </summary>
         /// <param name="order">The parent order</param>
         /// <param name="contingentOrders">The orders in the set</param>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static List<Order> GetContingentDescendants(this Order order, IReadOnlyCollection<Order> contingentOrders)
         {
             var result = new List<Order>();
diff --git a/Common/Orders/GroupOrderExtensions.cs b/Common/Orders/GroupOrderExtensions.cs
index 21848d8c62b1..2df9454fdedf 100644
--- a/Common/Orders/GroupOrderExtensions.cs
+++ b/Common/Orders/GroupOrderExtensions.cs
@@ -18,6 +18,7 @@
 using QuantConnect.Logging;
 using QuantConnect.Securities;
 using System.Collections.Generic;
+using System.ComponentModel;
 
 namespace QuantConnect.Orders
 {
@@ -34,6 +35,7 @@ public static class GroupOrderExtensions
         /// <param name="orders">List of orders in the combo</param>
         /// <returns>False if any of the orders in the combo is not yet found in the order provider. True otherwise</returns>
         /// <remarks>If the target order is not a combo order, the resulting list will contain that single order alone</remarks>
+        [EditorBrowsable(EditorBrowsableState.Never)]
         public static bool TryGetGroupOrders(this Order order, Func<int, Order> orderProvider, out List<Order> orders)
         {
             orders = new List<Order> { order };
diff --git a/Common/Orders/OrderTicket.cs b/Common/Orders/OrderTicket.cs
index 1931335ed913..3d16f5a61985 100644
--- a/Common/Orders/OrderTicket.cs
+++ b/Common/Orders/OrderTicket.cs
@@ -692,6 +692,7 @@ public override string ToString()
         /// an error, where it will return the integer value of the <see cref="OrderResponseErrorCode"/> from
         /// the most recent response
         /// </summary>
+        [StubsIgnore]
         public static implicit operator int(OrderTicket ticket)
         {
             var response = ticket.GetMostRecentOrderResponse();
diff --git a/Tests/Common/Util/ExtensionsTests.cs b/Tests/Common/Util/ExtensionsTests.cs
index 19bad6fcfbe1..fd3d57bf1ebf 100644
--- a/Tests/Common/Util/ExtensionsTests.cs
+++ b/Tests/Common/Util/ExtensionsTests.cs
@@ -116,6 +116,43 @@ public void DeserializeObjectList(string input, int count)
             }
         }
 
+        [Test]
+        public void EditorBrowsableNeverExtensionMethodsAreNotBoundToPythonInstances()
+        {
+            var order = new MarketOrder(Symbols.SPY, 100, DateTime.UtcNow);
+            var config = new SubscriptionDataConfig(typeof(TradeBar), Symbols.SPY, Resolution.Minute, TimeZones.NewYork,
+                TimeZones.NewYork, true, true, false);
+
+            using (Py.GIL())
+            {
+                var module = PyModule.FromString("testModule",
+                    @"
+from AlgorithmImports import *
+
+def check(symbol: Symbol, order: Order, config: SubscriptionDataConfig):
+    hidden = (hasattr(symbol, 'requires_mapping'), hasattr(order, 'try_get_contingent_orders'), hasattr(config, 'ticker_should_be_mapped'))
+    visible = (hasattr(order, 'is_contingent'), order.is_contingent(), OrderStatus.FILLED.is_open())
+    static_forms = (Extensions.requires_mapping(symbol), SubscriptionDataConfigExtensions.ticker_should_be_mapped(config))
+    return hidden, visible, static_forms
+");
+
+                dynamic check = module.GetAttr("check");
+                var result = check(Symbols.SPY, order, config);
+
+                // hidden extensions are not bound to the instance
+                Assert.IsFalse((bool)result[0][0]);
+                Assert.IsFalse((bool)result[0][1]);
+                Assert.IsFalse((bool)result[0][2]);
+                // the other extensions are
+                Assert.IsTrue((bool)result[1][0]);
+                Assert.IsFalse((bool)result[1][1]);
+                Assert.IsFalse((bool)result[1][2]);
+                // the static forms still work
+                Assert.AreEqual(Symbols.SPY.RequiresMapping(), (bool)result[2][0]);
+                Assert.AreEqual(config.TickerShouldBeMapped(), (bool)result[2][1]);
+            }
+        }
+
         [TestCase(true)]
         [TestCase(false)]
         public void ConvertPythonSymbolEnumerableSingle(bool useSymbol)