Google Ads "Add as Keyword" Match Type Helper

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Google Ads \"Add as Keyword\" Match Type Helper",
  "description": "Add as keyword match type helper for google ads.",
  "version": "1.0.6",
  "manifest_version": 3,
  "action": {},
  "content_scripts": [
    {
      "run_at": "document_start",
      "js": [
        "contentScript.js"
      ],
      "matches": [
        "https://ads.google.com/*",
        "http://ads.google.com/*"
      ]
    }
  ],
  "background": {
    "service_worker": "background.js"
  },
  "permissions": [
    "tabs"
  ]
}