Examine source code of URLXpanda

{
  "manifest_version": 2,
  "name": "URLXpanda",
  "version": "1.0.1",
  "description": "Expand shortened URLs in-place and preview link destinations with safety indicators",
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "urlxpanda@on-ger-a.co",
      "strict_min_version": "109.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_end"
    }
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "URLXpanda - Expand URLs"
  }
}