Examine source code of Table Copy Helper

{
  "manifest_version": 3,
  "name": "Table Copy Helper",
  "version": "1.1",
  "description": "Easily copy tables from webpages with a right-click.",
  "permissions": [
    "contextMenus",
    "scripting",
    "clipboardWrite"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "16": "icon_16.png",
    "48": "icon_48.png",
    "128": "icon_128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "table-copy@yourdomain.com",
      "strict_min_version": "109.0"
    }
  }
}