Examine source code of TokTokTik

{
  "manifest_version": 2,
  "name": "TokTokTik",
  "version": "2.149",
  "default_locale": "en",
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "tabs",
    "downloads",
    "notifications",
    "contextMenus",
    "alarms",
    "cookies",
    "*://*.tiktok.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.tiktok.com/*"
      ],
      "js": [
        "content_script.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "page_action": {
    "default_title": "TokTokTik",
    "default_icon": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "57.0",
      "id": "{b90b3a18-e7ff-4a4b-97e3-40138565cc5b}"
    }
  }
}