Onion search engine

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "manifest_version": 2,
  "name": "Onion search engine",
  "description": "It adds the Onion search engine to chrome without any popup. It is only compatible with chrome. Search on onionsearchengine.com",
  "version": "7",
  "author": "Onion search engine",
  "omnibox": {
    "keyword": "onion"
  },
  "minimum_chrome_version": "9",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "chrome_settings_overrides": {
    "homepage": "https://onionsearchengine.com",
    "search_provider": {
      "encoding": "UTF-8",
      "name": "Onion Search Engine",
      "is_default": true,
      "keyword": "onionsearchengine.com",
      "search_url": "https://www.onionsearchengine.com/search.php?search={searchTerms}&submit=Search&rt=std&pk_campaign=chromedft",
      "suggest_url": "https://www.onionsearchengine.com/search.php?search={searchTerms}&submit=Search&rt=std&pk_campaign=chromedft"
    },
    "startup_pages": [
      "https://onionsearchengine.com"
    ]
  }
}