Duplicate Tab Shortcut

The extension has strong trust indicators with 80,000 users and an excellent 4.9-star rating from 168 reviews, suggesting reliable functionality and user satisfaction. The developer maintains a professional GitHub Pages website, indicating transparency and technical credibility. The extension's purpose is straightforward and well-defined - providing keyboard shortcuts for tab duplication.

The primary concern is the storage permission, which allows the extension to store data locally on your device. While this permission is commonly used for legitimate purposes like saving user preferences and settings, it does represent a potential privacy consideration. However, given the extension's simple functionality of duplicating tabs, this permission is likely used for storing user-configured keyboard shortcuts and preferences, which is reasonable and expected behavior.

The extension uses Manifest V3, which provides enhanced security compared to older versions. No host permissions, content scripts, or web accessible resources are present, which significantly limits the extension's ability to access or modify web page content.

This extension appears safe for general use given its focused functionality, strong user feedback, and minimal permission requirements. The storage permission is appropriate for its stated purpose. Users comfortable with extensions storing configuration data locally can install this without significant concern. For maximum security, users could monitor what data the extension stores through Chrome's developer tools if desired.