Duplicate Tab Detector

Name: Duplicate Tab Detector
Author: Ian Gordon

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

As of June 2026, Duplicate Tab Detector has 1 users in the Productivity category.

Ian Gordon Productivity

Chrome Web Store ↗.crx

Users−66.7%

Rating0%

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— reviews

Reviews0%

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Version

1.0.1

Manifest V3

History

3 snapshots

Tracking since Apr 21, 2026.

View as table

Date	Users	Rating	Reviews	Version
Apr 21, 2026	3	—	—	1.0.1
May 6, 2026	3	—	—	1.0.1
Jun 1, 2026	2	—	—	1.0.1
Now	1	—	—	1.0.1

Permissions & access

Permissions: tabsscripting
Host access: <all_urls>

Screenshots

About

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.

Technical

Version: 1.0.1
Manifest: V3
Size: 13.47KiB
Min Chrome: 88
Languages: 1
Featured: No

Metadata

ID: focicgobpaibcmopajnjbmkfiifehbkf
Developer ID: u49a6c1c0aa683e004e4da18cafa1b22c
Developer Email: [email protected]
Created: Sep 30, 2025
Last Updated (Store): Sep 30, 2025
Last Scraped: Jun 1, 2026
Website: —
Support URL: —
Privacy Policy: https://zouarigordonian.github.io/duplicate-tab-detector/privacy.html