- Open Gmail in Chrome.
- Press Ctrl+Shift+J (Windows) or Cmd+Opt+J (Mac) to open Chrome’s built-in JavaScript console.
- Paste the following into the console and press Enter:
navigator.registerProtocolHandler("mailto", "https://mail.google.com/mail/?extsrc=mailto&url=%s", "Gmail");
- Chrome will prompt you, asking if you’d like to “Allow Gmail (mail.google.com) to open all email links?” Click the Use Gmail button.
- That’s it!