Valuation of buying and selling used laptops

manifest.json

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  "manifest_version": 3,
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    "128": "images/128.png"
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  ],
  "action": {
    "default_icon": {
      "16": "images/16.png"
    },
    "default_title": "Định giá thu mua laptop cũ",
    "default_popup": "thumualaptopcu.html"
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