Examine source code of Swap cookies

{
  "browser_action": {
    "browser_style": true,
    "default_title": "Swap cookies",
    "default_popup": "cookies.html",
    "default_icon": {
      "19": "icons/default19.png",
      "38": "icons/default38.png"
    }
  },
  "description": "Swap cookies for the domain in the current tab.",
  "background": {
    "scripts": [
      "punycode.min.js",
      "publicsuffixlist.min.js",
      "update.js",
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "icons": {
    "48": "icons/cookie.png",
    "96": "icons/cookie@2x.png"
  },
  "homepage_url": "https://github.com/Cimbali/swap-cookies",
  "manifest_version": 2,
  "name": "Swap cookies",
  "version": "1.6resigned1",
  "permissions": [
    "https://publicsuffix.org/list/public_suffix_list.dat",
    "cookies",
    "<all_urls>",
    "storage",
    "tabs"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0c449993-a83c-462d-8002-867bf19de1c4}"
    }
  }
}