Examine source code of NebulaNote

{
  "manifest_version": 2,
  "name": "NebulaNote",
  "version": "1.0",
  "description": "AI summarize webpages into notes with nebula UI.",
  "icons": {
    "48": "icon.png"
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{7a8e7b52-eba5-4477-abc6-152307e10f58}"
    }
  }
}