Examine source code of Supporter Addon

{
  "name": "Supporter Addon",
  "icons": {
    "16": "images/icon-light-theme-16.png",
    "19": "images/icon-light-theme-19.png",
    "32": "images/icon-light-theme-32.png",
    "38": "images/icon-light-theme-38.png",
    "48": "images/icon-light-theme-48.png",
    "64": "images/icon-light-theme-64.png",
    "128": "images/icon-light-theme-128.png"
  },
  "description": "Das Supporter Addon leitet Seitenaufrufe basierend auf benutzerdefinierten Regeln automatisch um, sodass der Entwickler des Addons bei Bestellungen des Nutzers in diversen Online-Shopping Portalen durch eine Provision des Händlers profitiert und somit unterstützt wird.",
  "background": {
    "scripts": [
      "js/redirect.js",
      "js/background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "{60107d6f-6905-41fd-b670-c10796cc7366}"
    }
  },
  "version": "3.6.4",
  "options_ui": {
    "chrome_style": true,
    "page": "popup.html"
  },
  "manifest_version": 2,
  "browser_action": {
    "default_popup": "popup.html",
    "theme_icons": [
      {
        "dark": "images/icon-light-theme-16.png",
        "light": "images/icon-dark-theme-16.png",
        "size": 16
      },
      {
        "dark": "images/icon-light-theme-19.png",
        "light": "images/icon-dark-theme-19.png",
        "size": 19
      },
      {
        "dark": "images/icon-light-theme-32.png",
        "light": "images/icon-dark-theme-32.png",
        "size": 32
      },
      {
        "dark": "images/icon-light-theme-38.png",
        "light": "images/icon-dark-theme-38.png",
        "size": 38
      },
      {
        "dark": "images/icon-light-theme-48.png",
        "light": "images/icon-dark-theme-48.png",
        "size": 48
      },
      {
        "dark": "images/icon-light-theme-64.png",
        "light": "images/icon-dark-theme-64.png",
        "size": 64
      },
      {
        "dark": "images/icon-light-theme-128.png",
        "light": "images/icon-dark-theme-128.png",
        "size": 128
      }
    ],
    "default_icon": {
      "16": "images/icon-light-theme-16.png",
      "19": "images/icon-light-theme-19.png",
      "32": "images/icon-light-theme-32.png",
      "38": "images/icon-light-theme-38.png",
      "48": "images/icon-light-theme-48.png",
      "64": "images/icon-light-theme-64.png",
      "128": "images/icon-light-theme-128.png"
    },
    "default_title": "Supporter Addon"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "webNavigation",
    "storage",
    "unlimitedStorage",
    "tabs",
    "<all_urls>",
    "*://*/*",
    "https://*/*",
    "notifications"
  ]
}