Examine source code of Nimble Search

{
  "manifest_version": 2,
  "name": "Nimble Search",
  "description": "nimblesearch.co sets Yahoo as your default search engine so you can enjoy fast, consistent, and reliable search every time.",
  "version": "1.0.0.0",
  "browser_action": {
    "default_title": "Nimble Search",
    "default_icon": {
      "48": "media/icon48.png"
    }
  },
  "icons": {
    "48": "media/icon48.png"
  },
  "permissions": [
    "contextMenus"
  ],
  "chrome_settings_overrides": {
    "search_provider": {
      "name": "Nimble Search",
      "keyword": "NimbleSearch",
      "favicon_url": "https://nimblesearch.co/favicon.png",
      "search_url": "https://search.yahoo.com/search?q={searchTerms}",
      "suggest_url": "https://search.yahoo.com/sugg/ie?output=fxjson&command={searchTerms}&nResults=10",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "background": {
    "scripts": [
      "taskWorkers/bgworker.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{cf480e40-3ce3-4fcc-aa45-ed231de2c944}"
    }
  }
}