What does Close duplicate tabs do?

Close duplicate tabs focuses on reducing clutter by finding and closing duplicate browser tabs. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Close duplicate tabs for?

Close duplicate tabs is a consumer product built for firefox users who manage many open browser tabs.

Is Close duplicate tabs free?

Yes — Close duplicate tabs is free to use.

What platforms does Close duplicate tabs run on?

Close duplicate tabs runs on the web and embeddable surfaces.

Is Close duplicate tabs still active?

Unverified. Close duplicate tabs has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Close duplicate tabs?

Similar projects tracked by PulseGate include Close New Duplicate Tabs, Duplicate Tab Closer, and Duplicate Tabs Closer.

Who makes Close duplicate tabs?

Close duplicate tabs is developed by Andy McKay.

When did Close duplicate tabs launch?

Close duplicate tabs first shipped in 2017.

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Close duplicate tabs

Name: Close duplicate tabs
Author: Andy McKay

github.comBrowser DevTools & extensions

Close duplicate tabs is a Firefox browser extension that detects duplicate open tabs and helps users close them. It is intended for individuals who want to keep browser sessions organized and reduce tab clutter.

FreeWebEmbeddable

Visit github.com

1alternative

3features

2017since

Overview

3 features

Close duplicate tabs is a Browser DevTools & extensions project. It focuses on reducing clutter by finding and closing duplicate browser tabs. Close duplicate tabs is a consumer product aimed at firefox users who manage many open browser tabs. Close duplicate tabs is free to use. It ships for the web and embeddable surfaces.

It is developed by Andy McKay, and it first shipped in 2017. Among its 3 catalogued features are duplicate detection, tab closing, and browser integration.

Summary written by a language model from the project’s public pages.

Duplicate detection
Tab closing
Browser integration

Built with & integrations

Connectors

chrome

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed10 Sep · 22:37 UTC
Close duplicate tabs verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Close duplicate tabs

What does Close duplicate tabs do?: Close duplicate tabs focuses on reducing clutter by finding and closing duplicate browser tabs. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Close duplicate tabs for?: Close duplicate tabs is a consumer product built for firefox users who manage many open browser tabs.
Is Close duplicate tabs free?: Yes — Close duplicate tabs is free to use.
What platforms does Close duplicate tabs run on?: Close duplicate tabs runs on the web and embeddable surfaces.
Is Close duplicate tabs still active?: Unverified. Close duplicate tabs has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Close duplicate tabs?: Similar projects tracked by PulseGate include Close New Duplicate Tabs, Duplicate Tab Closer, and Duplicate Tabs Closer.Close New Duplicate Tabs Duplicate Tab Closer Duplicate Tabs Closer
Who makes Close duplicate tabs?: Close duplicate tabs is developed by Andy McKay.
When did Close duplicate tabs launch?: Close duplicate tabs first shipped in 2017.

At a glance

Pricing: Free
Platforms: Web
Languages: English
First seen: 10 Sep 2026
Built for: Firefox users who manage many open browser tabs
Model: B2C
Solves: Reducing clutter by finding and closing duplicate browser tabs.

Registered as

Firefox Add-ons: close-duplicate-tabs-webext

Developer

Andy McKay

Index record

Indexed: 10 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 10 Sep 2026

Identity audit (13)

Slug: close-duplicate-tabs-github-com
Lifecycle state recorded: 10 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 Sep 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Written by a language model from the project's public pages.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 10 Sep 2026
Canonical URL: https://github.com/andymckay/tab-closer

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