New in Edge for developers: Create better components and make your site ready for agents

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Key Points

  • OpaqueRange API helps form inputs place menus and highlights at exact text positions.
  • WebMCP is ready for testing so sites can expose tools to browsing agents.
  • Edge 151 on Windows hides installed PWA title bars by default with Window Controls Overlay API.

What is changing

A recent blogs.windows.com post says Microsoft Edge and Chromium gained tools for better components and agent-ready sites. In plain English, these changes help sites place controls accurately, explain custom widgets to assistive tech, and prepare for browsing agents. The OpaqueRange API gives live access to text ranges inside