diff --git a/Userland/Libraries/LibWeb/Page/Page.cpp b/Userland/Libraries/LibWeb/Page/Page.cpp
index 134d94837d6..439619d0641 100644
--- a/Userland/Libraries/LibWeb/Page/Page.cpp
+++ b/Userland/Libraries/LibWeb/Page/Page.cpp
@@ -48,6 +48,7 @@ void Page::visit_edges(JS::Cell::Visitor& visitor)
     Base::visit_edges(visitor);
     visitor.visit(m_top_level_traversable);
     visitor.visit(m_client);
+    visitor.visit(m_on_pending_dialog_closed);
 }
 
 HTML::Navigable& Page::focused_navigable()
@@ -287,9 +288,8 @@ void Page::did_request_alert(String const& message)
 void Page::alert_closed()
 {
     if (m_pending_dialog == PendingDialog::Alert) {
-        m_pending_dialog = PendingDialog::None;
         m_pending_alert_response = Empty {};
-        m_pending_dialog_text.clear();
+        on_pending_dialog_closed();
     }
 }
 
@@ -307,9 +307,8 @@ bool Page::did_request_confirm(String const& message)
 void Page::confirm_closed(bool accepted)
 {
     if (m_pending_dialog == PendingDialog::Confirm) {
-        m_pending_dialog = PendingDialog::None;
         m_pending_confirm_response = accepted;
-        m_pending_dialog_text.clear();
+        on_pending_dialog_closed();
     }
 }
 
@@ -327,14 +326,15 @@ Optional<String> Page::did_request_prompt(String const& message, String const& d
 void Page::prompt_closed(Optional<String> response)
 {
     if (m_pending_dialog == PendingDialog::Prompt) {
-        m_pending_dialog = PendingDialog::None;
         m_pending_prompt_response = move(response);
-        m_pending_dialog_text.clear();
+        on_pending_dialog_closed();
     }
 }
 
-void Page::dismiss_dialog()
+void Page::dismiss_dialog(JS::GCPtr<JS::HeapFunction<void()>> on_dialog_closed)
 {
+    m_on_pending_dialog_closed = on_dialog_closed;
+
     switch (m_pending_dialog) {
     case PendingDialog::None:
         break;
@@ -348,8 +348,10 @@ void Page::dismiss_dialog()
     }
 }
 
-void Page::accept_dialog()
+void Page::accept_dialog(JS::GCPtr<JS::HeapFunction<void()>> on_dialog_closed)
 {
+    m_on_pending_dialog_closed = on_dialog_closed;
+
     switch (m_pending_dialog) {
     case PendingDialog::None:
         break;
@@ -361,6 +363,17 @@ void Page::accept_dialog()
     }
 }
 
+void Page::on_pending_dialog_closed()
+{
+    m_pending_dialog = PendingDialog::None;
+    m_pending_dialog_text.clear();
+
+    if (m_on_pending_dialog_closed) {
+        m_on_pending_dialog_closed->function()();
+        m_on_pending_dialog_closed = nullptr;
+    }
+}
+
 void Page::did_request_color_picker(WeakPtr<HTML::HTMLInputElement> target, Color current_color)
 {
     if (m_pending_non_blocking_dialog == PendingNonBlockingDialog::None) {
diff --git a/Userland/Libraries/LibWeb/Page/Page.h b/Userland/Libraries/LibWeb/Page/Page.h
index a656b36988a..028bfee9d2d 100644
--- a/Userland/Libraries/LibWeb/Page/Page.h
+++ b/Userland/Libraries/LibWeb/Page/Page.h
@@ -145,8 +145,8 @@ public:
     bool has_pending_dialog() const { return m_pending_dialog != PendingDialog::None; }
     PendingDialog pending_dialog() const { return m_pending_dialog; }
     Optional<String> const& pending_dialog_text() const { return m_pending_dialog_text; }
-    void dismiss_dialog();
-    void accept_dialog();
+    void dismiss_dialog(JS::GCPtr<JS::HeapFunction<void()>> on_dialog_closed = nullptr);
+    void accept_dialog(JS::GCPtr<JS::HeapFunction<void()>> on_dialog_closed = nullptr);
 
     void did_request_color_picker(WeakPtr<HTML::HTMLInputElement> target, Color current_color);
     void color_picker_update(Optional<Color> picked_color, HTML::ColorPickerUpdateState state);
@@ -224,6 +224,8 @@ private:
     FindInPageResult perform_find_in_page_query(FindInPageQuery const&, Optional<SearchDirection> = {});
     void update_find_in_page_selection(Vector<JS::Handle<DOM::Range>> matches);
 
+    void on_pending_dialog_closed();
+
     JS::NonnullGCPtr<PageClient> m_client;
 
     WeakPtr<HTML::Navigable> m_focused_navigable;
@@ -249,6 +251,7 @@ private:
     Optional<Empty> m_pending_alert_response;
     Optional<bool> m_pending_confirm_response;
     Optional<Optional<String>> m_pending_prompt_response;
+    JS::GCPtr<JS::HeapFunction<void()>> m_on_pending_dialog_closed;
 
     PendingNonBlockingDialog m_pending_non_blocking_dialog { PendingNonBlockingDialog::None };
     WeakPtr<HTML::HTMLElement> m_pending_non_blocking_dialog_target;
diff --git a/Userland/Services/WebContent/WebDriverConnection.cpp b/Userland/Services/WebContent/WebDriverConnection.cpp
index 05958661af3..bbd7b34edbc 100644
--- a/Userland/Services/WebContent/WebDriverConnection.cpp
+++ b/Userland/Services/WebContent/WebDriverConnection.cpp
@@ -2162,7 +2162,9 @@ Messages::WebDriverClient::DismissAlertResponse WebDriverConnection::dismiss_ale
         return Web::WebDriver::Error::from_code(Web::WebDriver::ErrorCode::NoSuchAlert, "No user dialog is currently open"sv);
 
     // 3. Dismiss the current user prompt.
-    current_browsing_context().page().dismiss_dialog();
+    current_browsing_context().page().dismiss_dialog(JS::create_heap_function(current_browsing_context().heap(), [this]() {
+        async_dialog_closed(JsonValue {});
+    }));
 
     // 4. Return success with data null.
     return JsonValue {};
@@ -2179,7 +2181,9 @@ Messages::WebDriverClient::AcceptAlertResponse WebDriverConnection::accept_alert
         return Web::WebDriver::Error::from_code(Web::WebDriver::ErrorCode::NoSuchAlert, "No user dialog is currently open"sv);
 
     // 3. Accept the current user prompt.
-    current_browsing_context().page().accept_dialog();
+    current_browsing_context().page().accept_dialog(JS::create_heap_function(current_browsing_context().heap(), [this]() {
+        async_dialog_closed(JsonValue {});
+    }));
 
     // 4. Return success with data null.
     return JsonValue {};
diff --git a/Userland/Services/WebContent/WebDriverServer.ipc b/Userland/Services/WebContent/WebDriverServer.ipc
index 0d51131222d..d058d7c4d75 100644
--- a/Userland/Services/WebContent/WebDriverServer.ipc
+++ b/Userland/Services/WebContent/WebDriverServer.ipc
@@ -4,4 +4,5 @@ endpoint WebDriverServer {
     navigation_complete(Web::WebDriver::Response response) =|
     script_executed(Web::WebDriver::Response response) =|
     actions_performed(Web::WebDriver::Response response) =|
+    dialog_closed(Web::WebDriver::Response response) =|
 }
diff --git a/Userland/Services/WebDriver/Client.cpp b/Userland/Services/WebDriver/Client.cpp
index 665fe41306b..8dca2449863 100644
--- a/Userland/Services/WebDriver/Client.cpp
+++ b/Userland/Services/WebDriver/Client.cpp
@@ -721,7 +721,7 @@ Web::WebDriver::Response Client::dismiss_alert(Web::WebDriver::Parameters parame
 {
     dbgln_if(WEBDRIVER_DEBUG, "Handling POST /session/<session_id>/alert/dismiss");
     auto session = TRY(find_session_with_id(parameters[0]));
-    return session->web_content_connection().dismiss_alert();
+    return session->dismiss_alert();
 }
 
 // 16.2 Accept Alert, https://w3c.github.io/webdriver/#accept-alert
@@ -730,7 +730,7 @@ Web::WebDriver::Response Client::accept_alert(Web::WebDriver::Parameters paramet
 {
     dbgln_if(WEBDRIVER_DEBUG, "Handling POST /session/<session_id>/alert/accept");
     auto session = TRY(find_session_with_id(parameters[0]));
-    return session->web_content_connection().accept_alert();
+    return session->accept_alert();
 }
 
 // 16.3 Get Alert Text, https://w3c.github.io/webdriver/#get-alert-text
diff --git a/Userland/Services/WebDriver/Session.cpp b/Userland/Services/WebDriver/Session.cpp
index 578fdb85f8e..a3a2cdb90ec 100644
--- a/Userland/Services/WebDriver/Session.cpp
+++ b/Userland/Services/WebDriver/Session.cpp
@@ -243,4 +243,18 @@ Web::WebDriver::Response Session::perform_actions(JsonValue payload) const
     });
 }
 
+Web::WebDriver::Response Session::dismiss_alert() const
+{
+    return perform_async_action(web_content_connection().on_dialog_closed, [&]() {
+        return web_content_connection().dismiss_alert();
+    });
+}
+
+Web::WebDriver::Response Session::accept_alert() const
+{
+    return perform_async_action(web_content_connection().on_dialog_closed, [&]() {
+        return web_content_connection().accept_alert();
+    });
+}
+
 }
diff --git a/Userland/Services/WebDriver/Session.h b/Userland/Services/WebDriver/Session.h
index 4d271d8f053..88c504aaf12 100644
--- a/Userland/Services/WebDriver/Session.h
+++ b/Userland/Services/WebDriver/Session.h
@@ -69,6 +69,9 @@ public:
     Web::WebDriver::Response element_send_keys(String, JsonValue) const;
     Web::WebDriver::Response perform_actions(JsonValue) const;
 
+    Web::WebDriver::Response dismiss_alert() const;
+    Web::WebDriver::Response accept_alert() const;
+
 private:
     using ServerPromise = Core::Promise<ErrorOr<void>>;
     ErrorOr<NonnullRefPtr<Core::LocalServer>> create_server(NonnullRefPtr<ServerPromise> promise);
diff --git a/Userland/Services/WebDriver/WebContentConnection.cpp b/Userland/Services/WebDriver/WebContentConnection.cpp
index 39fcae896d7..71f0824e4b1 100644
--- a/Userland/Services/WebDriver/WebContentConnection.cpp
+++ b/Userland/Services/WebDriver/WebContentConnection.cpp
@@ -38,4 +38,10 @@ void WebContentConnection::actions_performed(Web::WebDriver::Response const& res
         on_actions_performed(response);
 }
 
+void WebContentConnection::dialog_closed(Web::WebDriver::Response const& response)
+{
+    if (on_dialog_closed)
+        on_dialog_closed(response);
+}
+
 }
diff --git a/Userland/Services/WebDriver/WebContentConnection.h b/Userland/Services/WebDriver/WebContentConnection.h
index 3017dcf82f6..04464d1a8d4 100644
--- a/Userland/Services/WebDriver/WebContentConnection.h
+++ b/Userland/Services/WebDriver/WebContentConnection.h
@@ -25,6 +25,7 @@ public:
     Function<void(Web::WebDriver::Response)> on_navigation_complete;
     Function<void(Web::WebDriver::Response)> on_script_executed;
     Function<void(Web::WebDriver::Response)> on_actions_performed;
+    Function<void(Web::WebDriver::Response)> on_dialog_closed;
 
 private:
     virtual void die() override;
@@ -32,6 +33,7 @@ private:
     virtual void navigation_complete(Web::WebDriver::Response const&) override;
     virtual void script_executed(Web::WebDriver::Response const&) override;
     virtual void actions_performed(Web::WebDriver::Response const&) override;
+    virtual void dialog_closed(Web::WebDriver::Response const&) override;
 };
 
 }