diff --git a/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp b/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp
index 84fc62bf5d..6b8988404b 100644
--- a/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp
+++ b/Userland/Libraries/LibWeb/OutOfProcessWebView.cpp
@@ -287,6 +287,12 @@ void OutOfProcessWebView::notify_server_did_request_alert(Badge<WebContentClient
     GUI::MessageBox::show(window(), message, "Alert", GUI::MessageBox::Type::Information);
 }
 
+bool OutOfProcessWebView::notify_server_did_request_confirm(Badge<WebContentClient>, const String& message)
+{
+    auto confirm_result = GUI::MessageBox::show(window(), message, "Confirm", GUI::MessageBox::Type::Warning, GUI::MessageBox::InputType::OKCancel);
+    return confirm_result == GUI::Dialog::ExecResult::ExecOK;
+}
+
 void OutOfProcessWebView::did_scroll()
 {
     client().post_message(Messages::WebContentServer::SetViewportRect(visible_content_rect()));
diff --git a/Userland/Libraries/LibWeb/OutOfProcessWebView.h b/Userland/Libraries/LibWeb/OutOfProcessWebView.h
index c6db3c982e..260792f16b 100644
--- a/Userland/Libraries/LibWeb/OutOfProcessWebView.h
+++ b/Userland/Libraries/LibWeb/OutOfProcessWebView.h
@@ -66,6 +66,7 @@ public:
     void notify_server_did_request_context_menu(Badge<WebContentClient>, const Gfx::IntPoint&);
     void notify_server_did_request_link_context_menu(Badge<WebContentClient>, const Gfx::IntPoint&, const URL&, const String& target, unsigned modifiers);
     void notify_server_did_request_alert(Badge<WebContentClient>, const String& message);
+    bool notify_server_did_request_confirm(Badge<WebContentClient>, const String& message);
 
 private:
     OutOfProcessWebView();
diff --git a/Userland/Libraries/LibWeb/WebContentClient.cpp b/Userland/Libraries/LibWeb/WebContentClient.cpp
index 028da8d110..1318ada067 100644
--- a/Userland/Libraries/LibWeb/WebContentClient.cpp
+++ b/Userland/Libraries/LibWeb/WebContentClient.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -137,4 +137,10 @@ OwnPtr<Messages::WebContentClient::DidRequestAlertResponse> WebContentClient::ha
     return make<Messages::WebContentClient::DidRequestAlertResponse>();
 }
 
+OwnPtr<Messages::WebContentClient::DidRequestConfirmResponse> WebContentClient::handle(const Messages::WebContentClient::DidRequestConfirm& message)
+{
+    bool result = m_view.notify_server_did_request_confirm({}, message.message());
+    return make<Messages::WebContentClient::DidRequestConfirmResponse>(result);
+}
+
 }
diff --git a/Userland/Libraries/LibWeb/WebContentClient.h b/Userland/Libraries/LibWeb/WebContentClient.h
index 194901a809..1cc367364f 100644
--- a/Userland/Libraries/LibWeb/WebContentClient.h
+++ b/Userland/Libraries/LibWeb/WebContentClient.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2020-2021, Andreas Kling <kling@serenityos.org>
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -65,6 +65,7 @@ private:
     virtual void handle(const Messages::WebContentClient::DidRequestContextMenu&) override;
     virtual void handle(const Messages::WebContentClient::DidRequestLinkContextMenu&) override;
     virtual OwnPtr<Messages::WebContentClient::DidRequestAlertResponse> handle(const Messages::WebContentClient::DidRequestAlert&) override;
+    virtual OwnPtr<Messages::WebContentClient::DidRequestConfirmResponse> handle(const Messages::WebContentClient::DidRequestConfirm&) override;
 
     OutOfProcessWebView& m_view;
 };
diff --git a/Userland/Services/WebContent/PageHost.cpp b/Userland/Services/WebContent/PageHost.cpp
index 929cfac044..427361fb84 100644
--- a/Userland/Services/WebContent/PageHost.cpp
+++ b/Userland/Services/WebContent/PageHost.cpp
@@ -176,4 +176,9 @@ void PageHost::page_did_request_alert(const String& message)
     m_client.send_sync<Messages::WebContentClient::DidRequestAlert>(message);
 }
 
+bool PageHost::page_did_request_confirm(const String& message)
+{
+    return m_client.send_sync<Messages::WebContentClient::DidRequestConfirm>(message)->result();
+}
+
 }
diff --git a/Userland/Services/WebContent/PageHost.h b/Userland/Services/WebContent/PageHost.h
index 580685cfdb..85a7f53066 100644
--- a/Userland/Services/WebContent/PageHost.h
+++ b/Userland/Services/WebContent/PageHost.h
@@ -68,6 +68,7 @@ private:
     virtual void page_did_start_loading(const URL&) override;
     virtual void page_did_finish_loading(const URL&) override;
     virtual void page_did_request_alert(const String&) override;
+    virtual bool page_did_request_confirm(const String&) override;
 
     explicit PageHost(ClientConnection&);
 
diff --git a/Userland/Services/WebContent/WebContentClient.ipc b/Userland/Services/WebContent/WebContentClient.ipc
index 2e2f63d831..0eb5886a9c 100644
--- a/Userland/Services/WebContent/WebContentClient.ipc
+++ b/Userland/Services/WebContent/WebContentClient.ipc
@@ -15,4 +15,5 @@ endpoint WebContentClient = 90
     DidRequestContextMenu(Gfx::IntPoint content_position) =|
     DidRequestLinkContextMenu(Gfx::IntPoint content_position, URL url, String target, unsigned modifiers) =|
     DidRequestAlert(String message) => ()
+    DidRequestConfirm(String message) => (bool result)
 }