Examine source code of SheetFill (Auto Fill Web Form using SpreadSheet)

{
  "manifest_version": 3,
  "name": "SheetFill",
  "version": "1.0",
  "description": "Smart web-form filling from spreadsheet or CSV data",
  "homepage_url": "https://github.com/rizwansoaib",
  "permissions": [
    "activeTab",
    "storage",
    "unlimitedStorage",
    "scripting"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7f3c2a91-6d48-4b15-9e27-81c5a6d39402}",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "xlsx.full.min.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}