Examine source code of HTML & CSS Scriptor

{
  "manifest_version" : 3 ,
  "name" : "HTML & CSS Scriptor",
  "description" : "A Firefox sidebar for experimenting with HTML & CSS snippets. Save, load, export/import, and run code locally. No data collection.",
  "version" : "1.1",
  "permissions" : [
    "storage" ,
    "tabs" 
  ],
  "sidebar_action": {
    "default_title" : "Scriptor",
    "default_panel": "sidebar.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "html_css_js_scriptor@example.com",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}