Examine source code of SiteRecipe

{
  "manifest_version": 2,
  "name": "SiteRecipe",
  "description": "SiteRecipe.com Technology lookup",
  "version": "1.0.0",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "jquery.min.js",
        "content.js",
        "popup.js",
        "bootstrap.min.js"
      ],
      "css": [
        "style.css"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "jquery.min.js",
      "bootstrap.min.js",
      "background.js",
      "jquery.min.js"
    ]
  },
  "permissions": [
    "https://siterecipe.com/*",
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "Popup.html",
    "default_title": "SiteRecipe Technology Lookup",
    "default_icon": "images/siterecipe.png"
  }
}