BROWSER EXTENSION

Prevent Duplicate Tabs

Smart Chrome browser extension that prevents duplicate tabs from being opened with domain-specific settings and whitelist management. Keep your browser organized and efficient.

4.8Rating
300+Installs
2025Released

Browser Extension Screenshots

Prevent Duplicate Tabs Chrome Browser Extension Screenshot

Prevent Duplicate Tabs Browser Extension Interface

Install from Chrome Web StoreView on GitHub

Overview

Prevent Duplicate Tabs is a smart Chrome extension designed to keep your browser organized and efficient. It automatically prevents duplicate tabs from being opened, helping you maintain a clean and productive browsing experience.

The extension offers domain-specific settings, allowing you to customize behavior for different websites. Whether you want to prevent duplicates for social media, news sites, or work applications, you have complete control over how the extension behaves.

With its intuitive interface and powerful whitelist management, Prevent Duplicate Tabs helps you stay focused and organized while browsing the web.

Key Features

🚫 Smart Duplicate Prevention

  • Automatic Detection: Instantly detects when you try to open a duplicate tab
  • Smart Switching: Automatically switches to existing tab instead of creating duplicates
  • URL Matching: Compares URLs to determine if a tab is truly a duplicate
  • Domain Awareness: Understands different domains and subdomains
  • Query Parameter Handling: Handles URLs with different query parameters intelligently
  • Hash Fragment Support: Considers hash fragments when determining duplicates

⚙️ Domain-Specific Settings

  • Per-Domain Control: Configure different behavior for different websites
  • Whitelist Management: Add domains to whitelist for special handling
  • Blacklist Support: Block duplicate prevention for specific sites
  • Pattern Matching: Use wildcards and patterns for flexible domain matching
  • Import/Export: Save and share your domain configurations
  • Quick Toggle: Enable or disable the extension with one click

✨ User Experience

  • Non-Intrusive: Works silently in the background without interrupting your workflow
  • Visual Feedback: Subtle notifications when duplicates are prevented
  • Keyboard Shortcuts: Customizable shortcuts for quick access to settings
  • Statistics: View how many duplicates have been prevented
  • Recent Activity: See recent duplicate prevention actions
  • Settings Sync: Sync your settings across Chrome instances

Who Can Benefit from This Project?

Prevent Duplicate Tabs is perfect for users who want to maintain an organized and efficient browsing experience. Here's how it helps different types of users:

👨‍💼

Remote Workers

Problem

Multiple tabs for the same project or application create confusion and clutter.

Solution

Automatically prevent duplicate tabs for work applications, keeping your workspace clean and organized.

Clean WorkspaceBetter FocusReduced Clutter
🎓

Students & Researchers

Problem

Research sessions lead to multiple tabs of the same articles or resources.

Solution

Prevent duplicate research tabs while allowing multiple different resources to stay open.

Organized ResearchEfficient LearningClear Structure
🛒

Online Shoppers

Problem

Accidentally opening multiple tabs of the same product or store page.

Solution

Prevent duplicate shopping tabs while allowing different products to remain open.

Clean ShoppingEasy ComparisonNo Confusion
📰

News Readers

Problem

Multiple tabs of the same news article or website homepage.

Solution

Keep your news reading organized by preventing duplicate news tabs.

Organized ReadingBetter NavigationEfficient Browsing

Ready to Stay Organized?

Whether you're working, studying, shopping, or just browsing, Prevent Duplicate Tabs helps you maintain a clean and efficient browsing experience.

How to Use This Project

Installation & Setup

Get started with Prevent Duplicate Tabs in just a few simple steps.

1

Install the extension from Chrome Web Store

Search for 'Prevent Duplicate Tabs' and click Install

2

Click the extension icon in your toolbar

The extension will be active immediately after installation

3

Configure your preferences

Set up domain-specific rules and whitelist management

Domain Configuration

Learn how to set up domain-specific rules for different websites.

1

Open extension settings

Click the extension icon and select 'Settings'

2

Add domains to whitelist

Enter domains where you want duplicate prevention enabled

3

Configure blacklist

Add domains where duplicate prevention should be disabled

4

Test your configuration

Try opening duplicate tabs to see the extension in action

Technology Stack

Core Technologies

JavaScript (70%)CSS (20%)HTML (10%)Chrome Extension Manifest V3

Chrome Extension APIs

Chrome Tabs APIChrome Storage APIChrome Runtime APIService Worker

Credits & Attribution

Acknowledging the amazing tools and resources that made this project possible

Attribution

Settings IconFlaticon

Special thanks to the open-source community and all the developers who create and maintain the amazing tools that make modern web development possible.

Legal Documents

Important legal information about this project

Privacy Policy

How we collect, use, and protect your information

Read Privacy →

Terms & Conditions

Terms governing your use of our services

Read Terms →

Ready to get started?

Check out the source code or install the browser extension

View on GitHubInstall Browser Extension