diff --git a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
index 4a74468315f4c..aeac1520eb6b0 100644
--- a/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
+++ b/dotnet/src/webdriver/BiDi/Communication/Json/BiDiJsonSerializerContext.cs
@@ -131,6 +131,7 @@ namespace OpenQA.Selenium.BiDi.Communication.Json;
 [JsonSerializable(typeof(Network.RemoveDataCollectorCommand))]
 [JsonSerializable(typeof(Network.RemoveInterceptCommand))]
 [JsonSerializable(typeof(Network.SetCacheBehaviorCommand))]
+[JsonSerializable(typeof(Network.SetExtraHeadersCommand))]
 
 [JsonSerializable(typeof(Network.BeforeRequestSentEventArgs))]
 [JsonSerializable(typeof(Network.ResponseStartedEventArgs))]
diff --git a/dotnet/src/webdriver/BiDi/Network/NetworkModule.cs b/dotnet/src/webdriver/BiDi/Network/NetworkModule.cs
index 95e38245af4b5..74136bfc03bb0 100644
--- a/dotnet/src/webdriver/BiDi/Network/NetworkModule.cs
+++ b/dotnet/src/webdriver/BiDi/Network/NetworkModule.cs
@@ -65,6 +65,13 @@ public async Task<EmptyResult> SetCacheBehaviorAsync(CacheBehavior behavior, Set
         return await Broker.ExecuteCommandAsync<SetCacheBehaviorCommand, EmptyResult>(new SetCacheBehaviorCommand(@params), options).ConfigureAwait(false);
     }
 
+    public async Task<EmptyResult> SetExtraHeadersAsync(IEnumerable<Header> headers, SetExtraHeadersOptions? options = null)
+    {
+        var @params = new SetExtraHeadersParameters(headers, options?.Contexts, options?.UserContexts);
+
+        return await Broker.ExecuteCommandAsync<SetExtraHeadersCommand, EmptyResult>(new SetExtraHeadersCommand(@params), options).ConfigureAwait(false);
+    }
+
     public async Task<EmptyResult> ContinueRequestAsync(Request request, ContinueRequestOptions? options = null)
     {
         var @params = new ContinueRequestParameters(request, options?.Body, options?.Cookies, options?.Headers, options?.Method, options?.Url);
diff --git a/dotnet/src/webdriver/BiDi/Network/SetExtraHeadersCommand.cs b/dotnet/src/webdriver/BiDi/Network/SetExtraHeadersCommand.cs
new file mode 100644
index 0000000000000..f0229cfb34fa4
--- /dev/null
+++ b/dotnet/src/webdriver/BiDi/Network/SetExtraHeadersCommand.cs
@@ -0,0 +1,35 @@
+// <copyright file="SetExtraHeadersCommand.cs" company="Selenium Committers">
+// Licensed to the Software Freedom Conservancy (SFC) under one
+// or more contributor license agreements.  See the NOTICE file
+// distributed with this work for additional information
+// regarding copyright ownership.  The SFC licenses this file
+// to you under the Apache License, Version 2.0 (the
+// "License"); you may not use this file except in compliance
+// with the License.  You may obtain a copy of the License at
+//
+//   http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing,
+// software distributed under the License is distributed on an
+// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+// KIND, either express or implied.  See the License for the
+// specific language governing permissions and limitations
+// under the License.
+// </copyright>
+
+using System.Collections.Generic;
+using OpenQA.Selenium.BiDi.Communication;
+
+namespace OpenQA.Selenium.BiDi.Network;
+
+internal sealed class SetExtraHeadersCommand(SetExtraHeadersParameters @params)
+    : Command<SetExtraHeadersParameters, EmptyResult>(@params, "network.setExtraHeaders");
+
+internal sealed record SetExtraHeadersParameters(IEnumerable<Header> Headers, IEnumerable<BrowsingContext.BrowsingContext>? Contexts, IEnumerable<Browser.UserContext>? UserContexts) : Parameters;
+
+public sealed class SetExtraHeadersOptions : CommandOptions
+{
+    public IEnumerable<BrowsingContext.BrowsingContext>? Contexts { get; set; }
+
+    public IEnumerable<Browser.UserContext>? UserContexts { get; set; }
+}
diff --git a/dotnet/test/common/BiDi/Network/NetworkTest.cs b/dotnet/test/common/BiDi/Network/NetworkTest.cs
index 8aa1c07601d1f..577e79a419515 100644
--- a/dotnet/test/common/BiDi/Network/NetworkTest.cs
+++ b/dotnet/test/common/BiDi/Network/NetworkTest.cs
@@ -251,4 +251,15 @@ public void CanSetCacheBehavior()
         Assert.That(async () => await bidi.Network.SetCacheBehaviorAsync(CacheBehavior.Default), Throws.Nothing);
         Assert.That(async () => await context.Network.SetCacheBehaviorAsync(CacheBehavior.Default), Throws.Nothing);
     }
+
+    [Test]
+    [IgnoreBrowser(Selenium.Browser.Chrome, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Edge, "Not supported yet?")]
+    [IgnoreBrowser(Selenium.Browser.Firefox, "Not supported yet?")]
+    public async Task CanSetExtraHeaders()
+    {
+        var result = await bidi.Network.SetExtraHeadersAsync([new Header("x-test-header", "test-value")]);
+
+        Assert.That(result, Is.Not.Null);
+    }
 }