Core Web Vitals Visualizer

manifest.json

{
  "action": {
    "default_popup": "popup.html"
  },
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  },
  "description": "Visualize the Core Web Vitals of any webpage",
  "icons": {
    "16": "icons/rum16.png",
    "48": "icons/rum48.png",
    "144": "icons/rum144.png"
  },
  "manifest_version": 3,
  "name": "Core Web Vitals Visualizer",
  "permissions": [
    "debugger"
  ],
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "1.11",
  "content_scripts": [
    {
      "matches": [
        "https://*/*",
        "http://*/*"
      ],
      "run_at": "document_start",
      "js": [
        "js/content.js"
      ]
    }
  ]
}