Examine source code of Confluence Search

{
  "manifest_version": 2,
  "name": "Confluence Search",
  "version": "1.0",
  "description": "Directly search the confluence site from your address bar",
  "icons": {
    "16": "confluence.png",
    "32": "confluence.png",
    "48": "confluence.png"
  },
  "omnibox": {
    "keyword": "!cs"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": "confluence.png",
    "default_title": "Confluence Search",
    "default_popup": "config.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4a2aa62b-f2fa-4cf0-8800-eef6aaea0e4f}"
    }
  }
}