Examine source code of BF4 Battlepack Opener

{
  "manifest_version": 2,
  "name": "BF4 Battlepack Opener",
  "description": "This extension adds a button to the Battlefield 4 Battlepacks page that will automatically open all unopened battlepacks.",
  "version": "1.1resigned1",
  "browser_action": {
    "default_icon": "icon19.png",
    "default_popup": "popup.html"
  },
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://battlelog.battlefield.com/bf4*"
      ],
      "js": [
        "jquery.js",
        "battlepackOpener.js"
      ]
    }
  ],
  "icons": {
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{09ac4302-449a-4547-9e34-07d0230a34fd}"
    }
  }
}