Examine source code of Map Search Online

{
  "omnibox": {
    "keyword": "maps"
  },
  "browser_action": {
    "default_icon": "icons/icon128.png",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "cookies",
    "*://*.mapsearchonline.co/*"
  ],
  "background": {
    "scripts": [
      "js/common.js",
      "js/background.js"
    ]
  },
  "manifest_version": 2,
  "name": "Map Search Online",
  "description": "Easily access maps & directions, along with web search powered by Yahoo!(R)  from your browser search bar.",
  "icons": {
    "128": "icons/icon128.png"
  },
  "version": "1.0.0.9",
  "content_scripts": [
    {
      "matches": [
        "*://*.search.yahoo.com/*"
      ],
      "js": [
        "js/common.js",
        "js/content-yahoo.js"
      ],
      "run_at": "document_end"
    }
  ],
  "chrome_settings_overrides": {
    "search_provider": {
      "favicon_url": "https://www.mapsearchonline.co/favicon.ico",
      "search_url": "https://search.yahoo.com/yhs/search?hspart=sz&hsimp=yhs-001&type=type7048355-sv7-67121-72992&param1=67121&p={searchTerms}&param2=72992",
      "suggest_url": "https://search.yahoo.com/sugg/ie?output=fxjson&command={searchTerms}&nResults=10",
      "name": "Yahoo Web Search",
      "keyword": "Yahoo",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "applications": {
    "gecko": {
      "strict_min_version": "65.0",
      "id": "{39758b02-374a-437e-955d-f878b7304411}"
    }
  }
}