Examine source code of SeeMDasHTML

{
  "manifest_version": 3,
  "name": "SeeMDasHTML",
  "version": "1.0",
  "description": "Convertit automatiquement les fichiers .md en HTML dans Firefox. Propulsé par Marked.js (100% GFM).",
  "browser_specific_settings": {
    "gecko": {
      "id": "seemdashtml@weedmanu",
      "strict_min_version": "142.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "48": "icons/icon-48.png",
      "96": "icons/icon-96.png",
      "128": "icons/icon-128.png"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "file:///*"
      ],
      "js": [
        "js/marked.min.js",
        "js/dompurify.min.js",
        "js/md-converter.js",
        "content/md-content.js"
      ],
      "run_at": "document_end"
    }
  ],
  "permissions": [
    "activeTab"
  ],
  "host_permissions": [
    "file:///*"
  ],
  "web_accessible_resources": [
    {
      "resources": [],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'"
  }
}