Examine source code of Aliexpress image

{
  "manifest_version": 2,
  "name": "Aliexpress Search by Image",
  "version": "1.0",
  "description": "Search for products on Aliexpress using any image.",
  "icons": {
    "48": "icon.png"
  },
  "permissions": [
    "contextMenus",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c2234f1a-2fe2-4ec4-9d35-6acba18d9708}"
    }
  }
}