Examine source code of MockitMan

{
  "manifest_version": 2,
  "name": "MockitMan",
  "description": "Mocking tools for Web Developers.",
  "version": "2.0.2resigned1",
  "background": {
    "scripts": [
      "services/background.js"
    ]
  },
  "icons": {
    "16": "resources/duplicat-16.png",
    "32": "resources/duplicat-32.png",
    "48": "resources/duplicat-48.png",
    "128": "resources/duplicat-128.png"
  },
  "browser_action": {
    "default_popup": "views/popup.html",
    "default_icon": {
      "16": "resources/duplicat-16.png",
      "32": "resources/duplicat-32.png"
    }
  },
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*",
    "clipboardRead",
    "clipboardWrite"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6c5cbf88-4e54-48b5-9343-d0146cb6c1f2}"
    }
  }
}