Examine source code of 4programmers1

{
  "description": "first ext, test. Otwiera stronke http://forum.4programmers.net/",
  "manifest_version": 2,
  "name": "4programmers1",
  "version": "1.4resigned1",
  "homepage_url": "http://forum.4programmers.net/",
  "icons": {
    "16": "icons/4programmers.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/4programmers.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4e86f772-057b-4844-bf66-990e69e21e79}"
    }
  }
}