DuckDuckGo to Google

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "DuckDuckGo to Google",
  "description": "Unhappy with DuckDuckGo results? Quickly search the same query on Google. Use the toolbar button or the keyboard command shift + g",
  "version": "1.0.1",
  "manifest_version": 3,
  "content_scripts": [
    {
      "matches": [
        "*://duckduckgo.com/*",
        "*://www.duckduckgo.com/*"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "icons": {
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "24": "icons/icon-24.png",
      "32": "icons/icon-32.png"
    },
    "default_title": "DDG to Google"
  },
  "background": {
    "service_worker": "sw.js"
  },
  "permissions": [
    "scripting",
    "declarativeContent"
  ],
  "host_permissions": [
    "*://duckduckgo.com/*",
    "*://www.duckduckgo.com/*"
  ],
  "homepage_url": "https://browsernative.com/duckduckgo-to-google-search/"
}