Examine source code of ToonHQ+

{
  "manifest_version": 2,
  "name": "ToonHQ+",
  "description": "ToonHQ+ (ToonHQ Plus) is an unofficial independently created browser extension that enhances the ToonHQ experience.",
  "version": "1.2.25",
  "icons": {
    "16": "icon/logo-16.png",
    "32": "icon/logo-32.png",
    "48": "icon/logo-48.png",
    "128": "icon/logo-128.png"
  },
  "permissions": [
    "storage",
    "alarms",
    "*://*.toonhq.org/*",
    "*://toonhq.org/*"
  ],
  "optional_permissions": [
    "notifications"
  ],
  "web_accessible_resources": [
    "vue-logger.js",
    "images/*.webp",
    "images/*.png",
    "content-scripts/sidebar.css"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "toonhqplus@zhoque.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_title": "ToonHQ Plus",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.toonhq.org/*",
        "*://toonhq.org/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/navfouc.js"
      ]
    },
    {
      "matches": [
        "*://*.toonhq.org/*",
        "*://toonhq.org/*"
      ],
      "js": [
        "content-scripts/sidebar.js"
      ]
    }
  ]
}