Examine source code of Auto Open JS Files

{
  "manifest_version": 2,
  "name": "Auto Open JS Files",
  "version": "1.1",
  "description": "Finds and opens all .js files from the current domain.",
  "permissions": [
    "tabs",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Open JS Files",
    "default_icon": {
      "128": "icons/icon-128x128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{97fff662-4eb4-4081-a0d8-fb52839fa819}"
    }
  }
}