Examine source code of Handle with

{
  "author": "igorlogius",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "128": "icon.png"
  },
  "manifest_version": 2,
  "name": "Handle with",
  "options_ui": {
    "page": "options.html"
  },
  "permissions": [
    "menus",
    "activeTab",
    "storage"
  ],
  "version": "1.1.11",
  "browser_specific_settings": {
    "gecko": {
      "id": "{fe3d063b-6c80-4700-aed8-062b8fb995a8}"
    }
  }
}