Examine source code of adv-store-search

{
  "manifest_version": 2,
  "name": "adv-store-search",
  "version": "0.6.3resigned1",
  "description": "Advanced Store Search",
  "icons": {
    "32": "icons/icon-32.png",
    "64": "icons/icon-64.png"
  },
  "browser_action": {
    "default_icon": "icons/icon-64.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "applications": {
    "gecko": {
      "id": "adv-store-search@example.com",
      "strict_min_version": "46.0"
    }
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "storage",
    "cookies",
    "tabs",
    "https://wanelo.com/",
    "https://fancy.com/",
    "http://www.redbubble.com/",
    "https://www.zazzle.com/",
    "https://pinterest.com/",
    "https://*.pinterest.com/",
    "https://advancedstoresearch.azurewebsites.net/"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self' 'unsafe-eval'",
  "content_scripts": [
    {
      "matches": [
        "*://*.pinterest.com/*"
      ],
      "js": [
        "/js/jquery.min.js",
        "/lib.js",
        "/js/parsers/pinterest_com.js"
      ],
      "run_at": "document_idle",
      "match_about_blank": true,
      "all_frames": true
    }
  ]
}