Examine source code of Quick Safe Search

{
  "manifest_version": 2,
  "name": "Quick Safe Search",
  "short_name": "Quick Safe Search",
  "description": "Quick Safe Search flags risky words to help keep your browsing safe and provides access to Yahoo Search.",
  "version": "1.5",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_icon": "icon48.png",
    "default_popup": "popup.html",
    "default_title": "Quick Safe Search"
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Web Search By Yahoo",
      "keyword": "quicksafe",
      "is_default": true,
      "encoding": "UTF-8",
      "favicon_url": "https://search.getquicksafesearch.com/favicon.ico",
      "suggest_url": "https://suggest.getquicksafesearch.com/querying/autocomplete?query={searchTerms}",
      "search_url": "https://search.getquicksafesearch.com/query?q={searchTerms}"
    }
  },
  "chrome_url_overrides": {
    "newtab": "newtab.html"
  },
  "permissions": [
    "tabs",
    "storage",
    "webRequest",
    "webRequestBlocking",
    "*://search.getquicksafesearch.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "@quick-safe-search",
      "strict_min_version": "91.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}