Examine source code of Zoom Memory

{
  "manifest_version": 2,
  "name": "Zoom Memory",
  "version": "1.0",
  "description": "Ghi nhớ cài đặt mức zoom trên từng trang web riêng lẻ.",
  "permissions": [
    "tabs",
    "storage",
    "webNavigation"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ea5ce5a7-aacb-4dd2-9791-a73b39df5215}"
    }
  }
}