Examine source code of iShopper

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "support@getishopper.com",
      "strict_min_version": "48.0"
    }
  },
  "name": "__MSG_extensionName__",
  "short_name": "__MSG_extensionShortName__",
  "author": "Shopper",
  "version": "1.6.18.2resigned1",
  "default_locale": "en",
  "description": "__MSG_extensionDescription__",
  "homepage_url": "http://shopper.browser-advisor.net",
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "js/jquery-3.2.1.min.js",
        "js/jquery.easing.1.3.js",
        "js/browser-polyfill.js",
        "js/content.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "js/browser-polyfill.js",
      "js/background.js"
    ]
  },
  "permissions": [
    "tabs",
    "http://*/*",
    "https://*/*"
  ],
  "icons": {
    "16": "16.png",
    "24": "24.png",
    "32": "32.png",
    "48": "48.png",
    "64": "64.png",
    "80": "80.png",
    "96": "96.png",
    "112": "112.png",
    "128": "128.png"
  }
}