Examine source code of Addskip

{
  "manifest_version": 2,
  "name": "Addskip",
  "version": "1.0",
  "description": "Goes straight to the hidden url instead of opening random adds",
  "icons": {
    "48": "icons/addskip_48.png",
    "96": "icons/addskip_96.png"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/addskip_32.png",
    "default_title": "Skipadd",
    "default_popup": "popup/skipadd.html"
  },
  "web_accessible_resources": [
    "icons/switch_on.png",
    "icons/switch_off.png"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "skipadd.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "popup/skipadd.js"
    ]
  }
}