diff --git a/dotnet/src/webdriver/Cookie.cs b/dotnet/src/webdriver/Cookie.cs
index 6ac99b0c68bcd..5d892fdc33706 100644
--- a/dotnet/src/webdriver/Cookie.cs
+++ b/dotnet/src/webdriver/Cookie.cs
@@ -17,6 +17,7 @@
 // </copyright>
 
 using System;
+using System.Linq;
 using System.Collections.Generic;
 using System.Globalization;
 using Newtonsoft.Json;
@@ -35,8 +36,11 @@ public class Cookie
         private string cookieValue;
         private string cookiePath;
         private string cookieDomain;
+        private bool isHttpOnly;
         private string sameSite;
+        private bool secure; 
         private DateTime? cookieExpiry;
+        private readonly string[] sameSiteValues = {"Strict", "Lax", "None"};
 
         /// <summary>
         /// Initializes a new instance of the <see cref="Cookie"/> class with a specific name,
@@ -98,6 +102,44 @@ public Cookie(string name, string value, string path, DateTime? expiry)
         {
         }
 
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ReturnedCookie"/> class with a specific name,
+        /// value, domain, path and expiration date.
+        /// </summary>
+        /// <param name="name">The name of the cookie.</param>
+        /// <param name="value">The value of the cookie.</param>
+        /// <param name="domain">The domain of the cookie.</param>
+        /// <param name="path">The path of the cookie.</param>
+        /// <param name="expiry">The expiration date of the cookie.</param>
+        /// <param name="isSecure"><see langword="true"/> if the cookie is secure; otherwise <see langword="false"/></param>
+        /// <param name="isHttpOnly"><see langword="true"/> if the cookie is an HTTP-only cookie; otherwise <see langword="false"/></param>
+        /// <param name="sameSite">The SameSite value of cookie.</param>
+        /// <exception cref="ArgumentException">If the name is <see langword="null"/> or an empty string,
+        /// or if it contains a semi-colon.</exception>
+        /// <exception cref="ArgumentNullException">If the value or currentUrl is <see langword="null"/>.</exception>
+        /// <exception cref="ArgumentNullException">If the same site value is not valid or same site value is "None" but secure is set to false.</exception>
+        public Cookie(string name, string value, string domain, string path, DateTime? expiry, bool secure, bool isHttpOnly, string sameSite)
+            : this(name, value, domain, path, expiry)
+        { 
+            this.isHttpOnly = isHttpOnly;
+            this.secure = secure;
+
+            if (!string.IsNullOrEmpty(sameSite))
+            {
+                if (!sameSiteValues.Contains(sameSite))
+                {
+                    throw new ArgumentException("Invalid sameSite cookie value. It should either \"Lax\", \"Strict\" or \"None\" ", "sameSite");
+                }
+
+                if ("None".Equals(sameSite) && !this.secure)
+                {
+                    throw new ArgumentException("Invalid cookie configuration: SameSite=None must be Secure");
+                }
+
+                this.sameSite = sameSite;
+            }
+        }
+            
         /// <summary>
         /// Initializes a new instance of the <see cref="Cookie"/> class with a specific name,
         /// value, and path.
@@ -168,7 +210,7 @@ public virtual string Path
         [JsonProperty("secure")]
         public virtual bool Secure
         {
-            get { return false; }
+            get { return this.secure; }
         }
 
         /// <summary>
@@ -177,7 +219,8 @@ public virtual bool Secure
         [JsonProperty("httpOnly")]
         public virtual bool IsHttpOnly
         {
-            get { return false; }
+            get { return this.isHttpOnly; }
+
         }
 
         /// <summary>
@@ -187,7 +230,6 @@ public virtual bool IsHttpOnly
         public virtual string SameSite
         {
             get { return this.sameSite; }
-            protected set { this.sameSite = value; }
         }
 
         /// <summary>
@@ -287,7 +329,8 @@ public override string ToString()
             return this.cookieName + "=" + this.cookieValue
                 + (this.cookieExpiry == null ? string.Empty : "; expires=" + this.cookieExpiry.Value.ToUniversalTime().ToString("ddd MM dd yyyy hh:mm:ss UTC", CultureInfo.InvariantCulture))
                     + (string.IsNullOrEmpty(this.cookiePath) ? string.Empty : "; path=" + this.cookiePath)
-                    + (string.IsNullOrEmpty(this.cookieDomain) ? string.Empty : "; domain=" + this.cookieDomain);
+                    + (string.IsNullOrEmpty(this.cookieDomain) ? string.Empty : "; domain=" + this.cookieDomain)
+                    + "; isHttpOnly= " + this.isHttpOnly + "; secure= " + this.secure + (string.IsNullOrEmpty(this.sameSite) ? string.Empty : "; sameSite=" + this.sameSite);
         }
 
         /// <summary>
diff --git a/dotnet/src/webdriver/Internal/ReturnedCookie.cs b/dotnet/src/webdriver/Internal/ReturnedCookie.cs
index 7d18ab6fba576..a55ca279edc55 100644
--- a/dotnet/src/webdriver/Internal/ReturnedCookie.cs
+++ b/dotnet/src/webdriver/Internal/ReturnedCookie.cs
@@ -26,9 +26,7 @@ namespace OpenQA.Selenium.Internal
     /// </summary>
     public class ReturnedCookie : Cookie
     {
-        private bool isSecure;
-        private bool isHttpOnly;
-
+        
         /// <summary>
         /// Initializes a new instance of the <see cref="ReturnedCookie"/> class with a specific name,
         /// value, domain, path and expiration date.
@@ -64,27 +62,9 @@ public ReturnedCookie(string name, string value, string domain, string path, Dat
         /// or if it contains a semi-colon.</exception>
         /// <exception cref="ArgumentNullException">If the value or currentUrl is <see langword="null"/>.</exception>
         public ReturnedCookie(string name, string value, string domain, string path, DateTime? expiry, bool isSecure, bool isHttpOnly, string sameSite)
-            : base(name, value, domain, path, expiry)
-        {
-            this.isSecure = isSecure;
-            this.isHttpOnly = isHttpOnly;
-            this.SameSite = sameSite;
-        }
-
-        /// <summary>
-        /// Gets a value indicating whether the cookie is secure.
-        /// </summary>
-        public override bool Secure
-        {
-            get { return this.isSecure; }
-        }
-
-        /// <summary>
-        /// Gets a value indicating whether the cookie is an HTTP-only cookie.
-        /// </summary>
-        public override bool IsHttpOnly
+            : base(name, value, domain, path, expiry, isSecure, isHttpOnly, sameSite)
         {
-            get { return this.isHttpOnly; }
+          
         }
 
         /// <summary>
@@ -97,8 +77,9 @@ public override string ToString()
                 + (this.Expiry == null ? string.Empty : "; expires=" + this.Expiry.Value.ToUniversalTime().ToString("ddd MM/dd/yyyy HH:mm:ss UTC", CultureInfo.InvariantCulture))
                     + (string.IsNullOrEmpty(this.Path) ? string.Empty : "; path=" + this.Path)
                     + (string.IsNullOrEmpty(this.Domain) ? string.Empty : "; domain=" + this.Domain)
-                    + (this.isSecure ? "; secure" : string.Empty)
-                    + (this.isHttpOnly ? "; httpOnly" : string.Empty);
+                    + (this.Secure ? "; secure" : string.Empty)
+                    + (this.IsHttpOnly ? "; httpOnly" : string.Empty)
+                    + (string.IsNullOrEmpty(this.SameSite) ? string.Empty : "; sameSite=" + this.SameSite);
         }
     }
 }
diff --git a/dotnet/test/common/CookieTest.cs b/dotnet/test/common/CookieTest.cs
index bb168038a1c71..e40c248fbcffc 100644
--- a/dotnet/test/common/CookieTest.cs
+++ b/dotnet/test/common/CookieTest.cs
@@ -25,6 +25,30 @@ public void ShouldThrowAnExceptionWhenTheNameIsNull()
             Assert.That(() => new ReturnedCookie(null, "value", null, null, DateTime.Now, false, false), Throws.InstanceOf<ArgumentException>());
         }
 
+        [Test]
+        public void ShouldThrowAnExceptionWhenSameSiteIsWrong()
+        {
+            Assert.That(() => new ReturnedCookie("name", "value", "" , "/", DateTime.Now, true, true, "Wrong"), Throws.InstanceOf<ArgumentException>());
+        }
+
+        [Test]
+        public void ShouldThrowAnExceptionWhenSameSiteIsNoneButNotSecure()
+        {
+            Assert.That(() => new ReturnedCookie("name", "value", "", "/", DateTime.Now, false, true, "None"), Throws.InstanceOf<ArgumentException>());
+        }
+
+        [Test]
+        public void CookiesShouldAllowOptionalParametersToBeSet()
+        {
+            DateTime expiry = DateTime.Now;
+            Cookie cookie = new Cookie ("name", "value", "test.com", "/", expiry, true, true, "None");
+            Assert.That(cookie.Domain, Is.EqualTo("test.com"));
+            Assert.That(cookie.Path, Is.EqualTo("/"));
+            Assert.That(cookie.IsHttpOnly, Is.True);
+            Assert.That(cookie.Secure, Is.True);
+            Assert.That(cookie.SameSite, Is.EqualTo("None"));
+        }
+
         [Test]
         public void CookiesShouldAllowSecureToBeSet()
         {