Examine source code of Fooder

{
  "manifest_version": 2,
  "name": "Fooder",
  "version": "4.2.0",
  "description": "Dodaj przepis ze strony na której aktualnie się znajdujesz do serwisu Fooder",
  "homepage_url": "https://fooder.pl",
  "icons": {
    "19": "icons/icon19.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "browser_action": {
    "default_icon": "icons/icon48.png",
    "default_title": "Zapisz przepis na Fooderze"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "http://*/*",
    "https://*/*"
  ]
}