diff --git a/packages/playwright-core/src/tools/backend/context.ts b/packages/playwright-core/src/tools/backend/context.ts
index 0de784b4ff306..132f7e790cadf 100644
--- a/packages/playwright-core/src/tools/backend/context.ts
+++ b/packages/playwright-core/src/tools/backend/context.ts
@@ -119,7 +119,6 @@ export class Context {
   private _recordedActions: string[] | undefined;
   private _disposables: Disposable[] = [];
 
-  private _webmcpTools: WebMCPToolDefinition[] = [];
   private _webmcpToolsSignature = '';
 
   private _runningToolName: string | undefined;
@@ -328,16 +327,15 @@ export class Context {
   }
 
   currentWebMCPTools(): WebMCPToolDefinition[] {
-    return this._webmcpTools;
+    // Handlers are bound to a tab and frame, always take the fresh ones.
+    return this._currentTab?.webmcpTools()?.tools.map(tool => tool.mcpTool) ?? [];
   }
 
   maybeNotifyWebMCPToolsChanged() {
-    const tools = this._currentTab?.webmcpTools()?.tools.map(tool => tool.mcpTool) ?? [];
-    const signature = JSON.stringify(tools.map(tool => tool.schema));
+    const signature = JSON.stringify(this.currentWebMCPTools().map(tool => tool.schema));
     if (signature === this._webmcpToolsSignature)
       return;
     this._webmcpToolsSignature = signature;
-    this._webmcpTools = tools;
     this.options.onWebMCPToolsChanged?.();
   }
 
diff --git a/tests/mcp/webmcp-dynamic.spec.ts b/tests/mcp/webmcp-dynamic.spec.ts
index 3725780cc5727..8e55c9fe4ceaa 100644
--- a/tests/mcp/webmcp-dynamic.spec.ts
+++ b/tests/mcp/webmcp-dynamic.spec.ts
@@ -186,6 +186,29 @@ test('only the current tab contributes tools, switching tabs swaps them', async
   expect(await names()).toEqual(['webmcp_add']);
 });
 
+test('a tool registered in an iframe can be called after the page is reloaded', async ({ startClient, server, mcpBrowser }) => {
+  test.skip(mcpBrowser === 'firefox', 'Firefox does not list tools registered in iframes');
+  server.setRoute('/frame', (req, res) => {
+    res.writeHead(200, { 'Content-Type': 'text/html' });
+    res.end(`<title>frame</title>${registerScript(kAdd)}`);
+  });
+  server.setRoute('/', (req, res) => {
+    res.writeHead(200, { 'Content-Type': 'text/html' });
+    res.end(`<title>top</title><iframe src="/frame"></iframe>`);
+  });
+
+  const { client } = await startClient({ config: webmcpConfig(mcpBrowser) });
+  await client.callTool({ name: 'browser_navigate', arguments: { url: server.PREFIX } });
+  expect(await client.callTool({ name: 'webmcp_add', arguments: { a: 1, b: 2 } })).toHaveResponse({
+    result: expect.stringContaining('"text": "3"'),
+  });
+
+  await client.callTool({ name: 'browser_navigate', arguments: { url: server.PREFIX } });
+  expect(await client.callTool({ name: 'webmcp_add', arguments: { a: 2, b: 3 } })).toHaveResponse({
+    result: expect.stringContaining('"text": "5"'),
+  });
+});
+
 test('--no-webmcp opts out of page tools entirely', async ({ startClient, server, mcpBrowser }) => {
   server.setRoute('/', (req, res) => {
     res.writeHead(200, { 'Content-Type': 'text/html' });