Examine source code of Cosmic Explorer

{
  "manifest_version": 2,
  "name": "Cosmic Explorer",
  "version": "1.0",
  "description": "Embark on a daily journey through the cosmos. Discover awe-inspiring space insights, astronomical milestones, and breathtaking universe trivia every time you open your extension.",
  "icons": {
    "48": "cosmic_explorer_icon.png"
  },
  "browser_action": {
    "default_popup": "index.html",
    "default_title": "Cosmic Explorer"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{54398116-cac1-4d77-988c-eb7d1b48c4f6}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}