Examine source code of BigRoc Auto Clicker

{
  "manifest_version": 2,
  "name": "BigRoc Auto Clicker",
  "description": "BigRoc Auto Clicker.",
  "version": "1.2",
  "homepage_url": "http://www.rocjohn.com",
  "permissions": [
    "alarms",
    "notifications",
    "storage",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": {
      "46": "icons/auto_clicker_46_46.png"
    },
    "browser_style": true,
    "default_title": "Auto-Clicker"
  },
  "options_ui": {
    "browser_style": true,
    "page": "settings.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{eca84be6-80cb-48d5-890c-c8c94fb32f14}"
    }
  }
}