Examine source code of FireBlox - ROBLOX Enhancer for Firefox

{
  "manifest_version": 2,
  "name": "FireBlox - Roblox Enhancer for Firefox",
  "version": "0.1.6",
  "description": "An extension which enhances the Roblox website with some modifications, and Tweaks.",
  "browser_action": {
    "browser_style": false,
    "default_popup": "popup/def.html",
    "default_icon": {
      "32": "FireBlox_icon_4.gif"
    }
  },
  "permissions": [
    "history",
    "tabs",
    "activeTab",
    "storage",
    "notifications",
    "webRequest",
    "*://adservice.google.com/adsid/*",
    "*://securepubads.g.doubleclick.net/*",
    "*://*.roblox.com/*",
    "webRequestBlocking"
  ],
  "options_ui": {
    "page": "pages/optionspage.html"
  },
  "background": {
    "scripts": [
      "scripts/bgscript.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://www.roblox.com/*"
      ],
      "css": [
        "css/dialogs.css"
      ],
      "js": [
        "scripts/DialogScript.js",
        "scripts/EnhanceScript_main.js"
      ],
      "run_at": "document_start"
    }
  ]
}