Examine source code of SessionTabs

{
  "manifest_version": 2,
  "name": "SessionTabs",
  "description": "Never lose your tabs again. Organize, save, and restore your browsing sessions with ease.",
  "version": "1.1.3",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "permissions": [
    "tabs",
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "info.madhav512@gmail.com",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "SessionTabs",
    "default_popup": "popup.html"
  }
}