Prevent Duplicate Tabs
A Chrome extension that prevents duplicate tabs from being opened in the browser.
Install from Chrome Web Store
Overview
This Chrome extension provides intelligent tab management by automatically detecting and preventing duplicate tabs from being opened. Built with modern web technologies including React and TypeScript, the extension offers a seamless browsing experience with features such as automatic duplicate detection, customizable rules, and site-specific configurations.
Key Features
🔍 Intelligent Duplicate Detection
Real-Time Tab Monitoring
Continuously monitors all browser tabs using advanced detection algorithms to identify duplicate tabs instantly as they are opened
Smart URL Comparison
Compares URLs intelligently to determine if a tab is truly a duplicate, ensuring accurate duplicate tab detection
URL Normalization Engine
Handles URLs with query parameters, hash fragments, and tracking codes by normalizing them for accurate duplicate matching
Domain & Subdomain Awareness
Recognizes different domains, subdomains, and protocols when comparing tabs for precise duplicate identification
⚙️ Advanced Tab Management Controls
Flexible Duplicate Actions
Choose from multiple handling options including closing new tabs, closing existing tabs, or automatically switching to existing tabs
Site-Specific Configuration
Configure custom duplicate tab rules for individual websites and domains with granular control over behavior per site
Exception List Management
Create whitelists of URLs and domains where duplicate tabs are allowed for websites requiring multiple simultaneous tabs
Global Settings Customization
Adjust default duplicate tab behavior globally with options to ignore URL parameters and customize action preferences
📊 Performance & User Experience
Statistics Dashboard
Track browser efficiency metrics including total duplicate tabs prevented and tabs closed count for performance insights
Manifest V3 Compatibility
Built with latest Chrome Extension Manifest V3 standards for optimal browser integration and future-proof architecture
Lightweight Background Processing
Uses efficient service workers for minimal resource usage and maximum browser performance
Intuitive Configuration UI
Modern React-based interface with popup and options pages for easy access to all extension settings and preferences
Who Can Benefit?
E-commerce Research & Price Comparison
Online shoppers frequently open multiple tabs of the same product page from different retailers or with different coupon codes, leading to tab clutter and confusion when comparing prices and deals.
The extension automatically detects duplicate product pages and switches to existing tabs instead of creating duplicates. Users can configure site-specific rules for shopping websites to allow multiple tabs only when needed, while preventing accidental duplicate opens during price comparison sessions.
Development & Code Review Workflow
Developers working on multiple projects often accidentally open duplicate tabs of the same GitHub repository, documentation page, or API reference, causing confusion and wasting time navigating between identical tabs.
The extension prevents duplicate tabs for documentation sites and code repositories while allowing exceptions for development tools that require multiple tabs. Site-specific rules can be configured to allow duplicates on GitHub for different branches or pull requests while preventing duplicates on documentation sites.
News & Content Research
Researchers and content creators frequently open the same article or research page multiple times while gathering information, leading to disorganized tabs and difficulty tracking which sources have been reviewed.
The extension automatically switches to existing tabs when attempting to open the same article or research page, helping maintain an organized browsing session. URL normalization ensures that articles with tracking parameters are recognized as duplicates, keeping the research workflow clean and efficient.
Social Media Management
Social media managers and marketers need to work with multiple accounts simultaneously but often accidentally open duplicate tabs of the same platform, causing confusion between different account sessions and workflows.
The extension can be configured to allow multiple tabs for specific social media platforms through exception lists, while preventing duplicate tabs for other websites. This enables multi-account workflows for social media while maintaining tab organization for other browsing activities.
Educational Learning & Online Courses
Students taking online courses often accidentally open the same lesson or video page multiple times when navigating between course modules, creating duplicate tabs that waste browser resources and cause confusion.
The extension prevents duplicate course pages and lesson tabs while allowing students to maintain multiple tabs for different course modules. Site-specific rules can be configured for learning platforms to optimize the educational browsing experience and prevent accidental duplicate content opens.
Browser Performance Optimization
Users with many open tabs experience browser slowdowns and high memory usage due to accidental duplicate tabs consuming additional system resources unnecessarily.
By preventing duplicate tabs automatically, the extension reduces browser memory usage and improves overall browser performance. The statistics dashboard helps users track how many duplicate tabs have been prevented, providing insights into browser efficiency improvements and resource savings.
Tech Stack
📦 Programming Languages
⚛️ Frontend Framework & Libraries
🚀 Build Tools
🌐 Platform & APIs
Frequently Asked Questions
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