Lookup Definitions Online

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "2.2",
  "manifest_version": 3,
  "name": "Lookup Definitions Online",
  "description": "Lookup free online dictionary and thesaurus sites for definitions.",
  "icons": {
    "16": "/images/48_icon.png",
    "48": "/images/16_icon.png"
  },
  "permissions": [
    "contextMenus",
    "scripting",
    "storage"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "type": "module",
    "service_worker": "scripts/menu.js"
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "css": [
        "./html/inject.css"
      ],
      "js": [
        "./scripts/content-script.js"
      ]
    }
  ],
  "options_ui": {
    "page": "html/options.html",
    "open_in_tab": true
  }
}