Duplicate Tab Detector

Overview

Detects when a URL is already open and shows an in-page banner with options. No notifications permission requested.

Tired of opening the same website multiple times? Duplicate Tab Detector helps you stay organized by detecting when you open a tab with a URL that is already open elsewhere in Chrome. ✨ Features - Instantly detects duplicate tabs in your browser - Alerts you with a clear, actionable notification - Lets you decide whether to keep the new tab or close the old one - Works across all Chrome windows 🔒 Why use it? - Reduce clutter in your browser - Save memory and CPU by avoiding duplicate pages - Stay focused and productive with fewer redundant tabs Simple, lightweight, and privacy-friendly, your browsing data never leaves your device.

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Details

Version
1.0.1
Updated
September 30, 2025
Flag concern
Offered by
Ian Gordon
Size
13.47KiB
Languages
English
Developer
Email
iananthony.zgp@gmail.com
Non-trader
This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

Manage extensions and learn how they're being used in your organization

The developer has disclosed that it will not collect or use your data. To learn more, see the developer’s privacy policy.

This developer declares that your data is

Not being sold to third parties, outside of the approved use cases
Not being used or transferred for purposes that are unrelated to the item's core functionality
Not being used or transferred to determine creditworthiness or for lending purposes

Duplicate Tab Prevention - No Tab Twice

5.0

Prevents duplicate tabs by switching to an already-open matching tab and closing the extra copy.

Network Request Monitor

0.0

Monitor and capture network requests matching specified URL patterns

Chrome Alarms

3.0

Set alarms that will open specified URL's at desired times. The URL will be opened in a new tab along with an optional notification.

Page Visibility API Blocker

3.0

Blocks the Page Visibility API to prevent websites from detecting when the page is hidden

Tab Silence: New Tab Blocker

5.0

Block auto-opened new tabs per website, with local-only settings and extra hardening when enabled.

Double Right Click Close Tab

1.0

Close tabs by double right-clicking on web pages. Lightweight, fast, no tracking.

Duplicate Tab Finder

0.0

Finds and alerts you about duplicate tabs in your browser.

Popup Tab Blocker

5.0

Instantly blocks new tabs and popups opened by selected sites

Same Tab Links

0.0

Force links on the websites you choose to open in the same tab. Middle-click and Ctrl/Cmd+click still open new tabs.

Custom New Tab URL

5.0

Open new tabs to a URL you control, configurable via the extension options.

Block Notifications

3.1

Blocks annoying notification prompt appearing on websites.

Web Change Alert

5.0

Select parts of a webpage and schedule browser-based crawling checks. Get alerted only when the value changes.