Examine source code of Comiceerr

{
  "manifest_version": 3,
  "name": "Comiceerr",
  "version": "1.5",
  "description": "Comiceerr seamlessly adds a GetComics download link to your League of Comic Geeks collection.",
  "icons": {
    "48": "comiceer-icon_48.png",
    "128": "comiceer-icon_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@x-g.dev",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "downloads"
  ],
  "host_permissions": [
    "*://*.leagueofcomicgeeks.com/*",
    "*://*.getcomics.org/*",
    "*://getcomics.org/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://leagueofcomicgeeks.com/comic/*"
      ],
      "js": [
        "content.js"
      ]
    },
    {
      "matches": [
        "*://getcomics.org/*",
        "*://*.getcomics.org/*"
      ],
      "js": [
        "getcomics.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  }
}