Examine source code of SecoClient Extensions

{
  "manifest_version": 2,
  "name": "SecoClient Extensions",
  "description": "Extensions For SecoClient",
  "version": "2.0.4",
  "browser_specific_settings": {
    "gecko": {
      "id": "secoclient@huawei.com",
      "strict_min_version": "52.0"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": {
      "32": "icon32.png",
      "48": "icon48.png",
      "64": "icon64.png",
      "128": "icon128.png"
    }
  },
  "content_scripts": [
    {
      "js": [
        "content_script.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_start"
    }
  ],
  "permissions": [
    "nativeMessaging",
    "contextMenus",
    "tabs",
    "proxy",
    "storage"
  ]
}