Examine source code of Pass Manager Tab

{
  "version": "1.0.0.0",
  "name": "Pass Manager Tab",
  "manifest_version": 2,
  "description": "Pass Manager Tab enhances your new tab with Yahoo Search, and tools to manage bookmarks and passwords.",
  "permissions": [
    "contextMenus",
    "storage"
  ],
  "background": {
    "scripts": [
      "constants.js",
      "bgWorkers/bgWorker.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "128": "assets/icon128.png"
    },
    "default_title": "Pass Manager Tab"
  },
  "icons": {
    "32": "assets/icon32.png"
  },
  "chrome_url_overrides": {
    "newtab": "safeTabs/newtab/newtab.html"
  },
  "chrome_settings_overrides": {
    "search_provider": {
      "favicon_url": "https://passmanagertab.com/favicon.png",
      "name": "Pass Manager Tab",
      "keyword": "Pass Manager Tab",
      "suggest_url": "https://search.yahoo.com/sugg/ie?output=fxjson&command={searchTerms}&nResults=10",
      "search_url": "https://search.yahoo.com/search/?q={searchTerms}",
      "encoding": "UTF-8",
      "is_default": true
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{946d0e32-3f31-4aa0-a41e-2ba2e1635ded}"
    }
  }
}