No, WebMCP isn't replacing MCP. MCP connects agents to your services. WebMCP connects agents to your website while it's open and the user's in the loop. Here's how they fit together ⤵️

Ever hovered over a button, switched to DevTools, and watched its :hover styles vanish? 🎨 Turn on inactive styles in Settings, and the Elements panel will keep showing rules that no longer apply, clearly marked with an inactive indicator → goo.gle/4i2xbRL

Clicking a link in a single-page app doesn't trigger a full page load. That's why it's tricky to measure. Chrome DevTools now analyzes these soft navigations in Performance Insights, alongside Live Metrics and trace views → goo.gle/4i2xbRL

Now you can render live, accessible HTML buttons inside a 3D scene without losing screen reader support 🤯 The HTML-in-Canvas API makes it possible! No more floating CSS overlay hacks or laggy transform listeners. Natalia breaks down how to use the API to keep performance high and accessibility intact. Ready to level up your canvas renders? ⬇️ goo.gle/4dV0Km1

If ads are slowing down your site, DevTools can now identify the scripts responsible → goo.gle/4i2xbRL In Chrome DevTools, open Application > Ads to check experimental CrUX ad metrics (including CPU and Network usage), browse a table of ad scripts, and highlight every ad on the page.

Important updates for the Email Verification origin trial, including a new dedicated docs section → goo.gle/4s5Y2Qb 📱 Chrome for Android support enabled (Settings > Addresses and more > Verified Email) 🔑 Third-party origin trial support for embedded identity SDKs (same-site issuer requirement) 🛡️ JWKS signature validation guidance for optional `kid` claims 🔤 Strict exact-case email claim matching coming in Chrome 156 🏷️ Header standardized to 'Sec-Fetch-Dest: email-verification'

That failing API call in the Network panel? Rewrite it in the Console in two clicks → goo.gle/4i2xbRL Right-click any request and select "Edit and resend as fetch". DevTools opens the Console with the fetch() call ready to edit, parameter comments included, and a reference link. 🔒 Also new: local overrides block path traversal and non-http(s) schemes like data: and blob:

Chrome 155 adds support for JPEG XL (.jxl) → goo.gle/4yYpSjW Expect 30-50% smaller file sizes than traditional JPEGs, native HDR, progressive rendering, and lossless JPEG transcoding. Under the hood, Chrome uses jxl-rs, a pure Rust decoder built for maximum memory safety and performance.

🔒 Prevent unauthorized data exfiltration with connection allowlists → goo.gle/4y7rYgp Third-party scripts or AI-generated code can bypass app-level checks to send sensitive information to unauthorized servers. Connection allowlists give you explicit control over network requests by making the browser the gatekeeper of all network connections originating from your page.

Install two key updates to modernize extension builds with @antigravity: 1️⃣ Modern Web Guidance to share best practices directly with your coding agent 2️⃣ Chrome DevTools for agents, which allows your agent to install and test extensions in a real Chrome browser Write your prompt and enjoy smooth sailing for your extensions development ⛵ Check it out → goo.gle/4Ba886J