Examine source code of Vouch

{
  "manifest_version": 2,
  "name": "Vouch",
  "short_name": "vouch",
  "version": "2.0.3resigned1",
  "author": "zuzex",
  "default_locale": "en",
  "applications": {
    "gecko": {
      "id": "extension@couponize",
      "strict_min_version": "48.0"
    }
  },
  "background": {
    "scripts": [
      "vendor/jquery/jquery.min.js",
      "scripts/common.js",
      "scripts/config.js",
      "scripts/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_icon": {
      "16": "icons/vouch-gray-16.png",
      "32": "icons/vouch-gray-32.png",
      "48": "icons/vouch-gray-48.png",
      "96": "icons/vouch-gray-96.png",
      "128": "icons/vouch-gray-128.png"
    },
    "default_popup": "html/popups/disabled.htm",
    "default_title": "Vouch"
  },
  "content_scripts": [
    {
      "js": [
        "vendor/moment/moment.min.js",
        "vendor/jquery/jquery.min.js",
        "scripts/helpers.js",
        "scripts/common.js",
        "scripts/config.js",
        "scripts/vouch.js",
        "scripts/content.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start",
      "all_frames": false
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'; img-src 'self';",
  "description": "Automatically finds AND applies discount codes directly into to your shopping cart. 100% free, no catches.",
  "homepage_url": "https://vouch.org",
  "icons": {
    "16": "icons/vouch-red-16.png",
    "32": "icons/vouch-red-32.png",
    "48": "icons/vouch-red-48.png",
    "96": "icons/vouch-red-96.png",
    "128": "icons/vouch-red-128.png"
  },
  "options_ui": {
    "page": "html/pages/options.html",
    "open_in_tab": false
  },
  "permissions": [
    "activeTab",
    "http://*/*",
    "https://*/*",
    "storage",
    "tabs",
    "webRequest",
    "webRequestBlocking"
  ],
  "web_accessible_resources": [
    "html/*"
  ]
}