Examine source code of TableFetch — Export tables to CSV & Excel

{
  "manifest_version" : 3 ,
  "name" : "__MSG_extName__" ,
  "version" : "0.6.0",
  "description" : "__MSG_extDesc__" ,
  "permissions" : [
    "activeTab" ,
    "scripting" ,
    "storage" 
  ],
  "action" : {
    "default_popup" : "popup.html",
    "default_icon" : {
      "16" : "icons/icon16.png",
      "48" : "icons/icon48.png",
      "128" : "icons/icon128.png"
    }
  },
  "icons" : {
    "16" : "icons/icon16.png",
    "48" : "icons/icon48.png",
    "128" : "icons/icon128.png"
  },
  "default_locale" : "en" ,
  "browser_specific_settings": {
    "gecko": {
      "id": "tablefetch@tablefetch.app",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}