Examine source code of QuizLink

{
  "manifest_version": 3,
  "name": "QuizLink",
  "version": "1.0.1",
  "description": "Track learning journey everywhere!",
  "browser_specific_settings": {
    "gecko": {
      "id": "quizlink@quizlink.net",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    },
    "default_title": "Create Course from YouTube, Reddit, or Google Search"
  },
  "sidebar_action": {
    "default_panel": "sidebar/sidebar.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png"
    },
    "default_title": "QuizLink Sidebar"
  },
  "background": {
    "scripts": [
      "browser-polyfill.js",
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.youtube.com/*"
      ],
      "js": [
        "browser-polyfill.js",
        "shared/utils.js",
        "shared/auth-modal.js",
        "shared/notifications.js",
        "shared/action-dropdown.js",
        "content-youtube.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://*.reddit.com/*",
        "*://old.reddit.com/*"
      ],
      "js": [
        "browser-polyfill.js",
        "shared/utils.js",
        "shared/auth-modal.js",
        "shared/notifications.js",
        "shared/action-dropdown.js",
        "content-reddit.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://*.google.com/search*",
        "*://*.google.co.uk/search*",
        "*://*.google.ca/search*",
        "*://*.google.com.au/search*",
        "*://*.google.de/search*",
        "*://*.google.fr/search*",
        "*://*.google.es/search*",
        "*://*.google.it/search*",
        "*://*.google.co.in/search*",
        "*://*.google.co.jp/search*",
        "*://*.google.com.br/search*",
        "*://*.google.com.mx/search*"
      ],
      "js": [
        "browser-polyfill.js",
        "shared/utils.js",
        "shared/auth-modal.js",
        "shared/notifications.js",
        "shared/action-dropdown.js",
        "content-google-search.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://*.quizlink.net/*",
        "*://quizlink.net/*"
      ],
      "js": [
        "browser-polyfill.js",
        "content-auth-capture.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "browser-polyfill.js",
        "shared/utils.js",
        "shared/notifications.js",
        "shared/action-dropdown.js",
        "content-universal.js"
      ],
      "run_at": "document_idle"
    },
    {
      "matches": [
        "*://mcp-components.quizlink.net/widgets/*"
      ],
      "js": [
        "browser-polyfill.js",
        "content-widget-bridge.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "cookies",
    "scripting"
  ],
  "host_permissions": [
    "https://professor.quizlink.net/*",
    "https://keycloak.quizlink.net/*",
    "https://mcp.quizlink.net/*",
    "https://mcp-components.quizlink.net/*",
    "http://localhost:7149/*",
    "<all_urls>"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "browser-polyfill.js",
        "icons/*.png",
        "icons/logo_white.png",
        "sidebar/*",
        "widgets/*",
        "widget-bridge-inject.js",
        "widget-popup.html",
        "widget-popup.css",
        "widget-popup.js",
        "content-pip-overlay.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}