Examine source code of Quickie

{
  "manifest_version": 2,
  "name": "__MSG_appname__",
  "description": "__MSG_appdesc__",
  "default_locale": "en",
  "version": "0.2",
  "omnibox": {
    "keyword": "!"
  },
  "background": {
    "scripts": [
      "src/app.js"
    ],
    "persistent": false
  },
  "permissions": [
    "search"
  ],
  "icons": {
    "16": "assets/icons/quickie_16x16.png",
    "32": "assets/icons/quickie_32x32.png",
    "48": "assets/icons/quickie_48x48.png",
    "64": "assets/icons/quickie_64x64.png",
    "128": "assets/icons/quickie_128x128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{af53bf01-fe8f-48b4-a448-8f2677d85924}"
    }
  }
}