Examine source code of Doow

{
  "manifest_version": 2,
  "name": "Doow",
  "description": "Doow Browser Extension",
  "version": "1.9.3",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "activeTab",
    "tabs",
    "cookies",
    "storage",
    "scripting",
    "alarms",
    "https://*/*",
    "http://*/*",
    "*://*.example.com/*",
    "<all_urls>",
    "https://api.doow.co/browser-agents"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{6e5a464a-40fc-4aaf-9e60-16403cad5199}",
      "strict_min_version": "109.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Default Popup Title",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/content-main.js"
      ]
    }
  ]
}