Examine source code of JWT Cookie Decoder

{
  "name": "JWT Cookie Decoder",
  "description": "This extension can review cookies and decode jwt format cookies automatically",
  "version": "1.4",
  "manifest_version": 3,
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "cookies"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "action": {
    "default_popup": "src/popup/index.html",
    "default_icon": {
      "16": "icon16.png",
      "48": "icon48.png",
      "128": "icon128.png"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "info@smartsync.pro",
      "strict_min_version": "42.0"
    }
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "windows": "Ctrl+Shift+J",
        "mac": "MacCtrl+Shift+J",
        "chromeos": "Ctrl+Shift+J",
        "linux": "Ctrl+Shift+J"
      }
    }
  },
  "developer": {
    "name": "Hossein Rabizadeh"
  }
}