Who should use Duplicate Tab Closer?

Duplicate Tab Closer is a consumer product built for firefox users who want to manage duplicate tabs.

Is Duplicate Tab Closer free?

Yes — Duplicate Tab Closer is free to use.

What platforms does Duplicate Tab Closer run on?

Duplicate Tab Closer runs on the web, embeddable surfaces, macOS, Windows, and Linux.

Is Duplicate Tab Closer still maintained?

Unverified. Duplicate Tab Closer 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 projects are similar to Duplicate Tab Closer?

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

Who makes Duplicate Tab Closer?

Duplicate Tab Closer is developed by Taylor Lopez.

When did Duplicate Tab Closer launch?

Duplicate Tab Closer first shipped in 2026.

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Duplicate Tab Closer

Name: Duplicate Tab Closer
Author: Taylor Lopez

mozilla.orgBrowser DevTools & extensions

Duplicate Tab Closer is a Firefox browser extension that detects and closes duplicate tabs. It is intended for Firefox users who want to reduce tab clutter and keep open browsing sessions organized.

FreeWebEmbeddablemacOSWindowsLinux

Visit mozilla.org

1alternative

4features

2026since

Overview

4 features

Duplicate Tab Closer sits in PulseGate's Browser DevTools & extensions category. It focuses on closing duplicate browser tabs to reduce clutter and keep browsing sessions organized. Duplicate Tab Closer is a consumer product aimed at firefox users who want to manage duplicate tabs. It is available for free. Duplicate Tab Closer is available on the web, embeddable surfaces, macOS, Windows, and Linux.

Behind Duplicate Tab Closer is Taylor Lopez, and it first shipped in 2026. Among its 4 catalogued features are duplicate tab detection, duplicate tab closing, and firefox integration. The interface is available in 32 languages, including Czech, German, and Greek.

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

Duplicate tab detection
Duplicate tab closing
Firefox integration
No data collection

Built with & integrations

Runs on

BrowserEmbeddablemacOSWindowsLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed10 Sept · 01:05 UTC
Duplicate Tab Closer verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Duplicate Tab Closer

What does Duplicate Tab Closer do?: Duplicate Tab Closer focuses on closing duplicate browser tabs to reduce clutter and keep browsing sessions organized. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Duplicate Tab Closer?: Duplicate Tab Closer is a consumer product built for firefox users who want to manage duplicate tabs.
Is Duplicate Tab Closer free?: Yes — Duplicate Tab Closer is free to use.
What platforms does Duplicate Tab Closer run on?: Duplicate Tab Closer runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Duplicate Tab Closer still maintained?: Unverified. Duplicate Tab Closer 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 projects are similar to Duplicate Tab Closer?: Similar projects tracked by PulseGate include Duplicate Tab Detector, Duplicate Tabs Closer, and Duplicate Tab.Duplicate Tab Detector Duplicate Tabs Closer Duplicate Tab
Who makes Duplicate Tab Closer?: Duplicate Tab Closer is developed by Taylor Lopez.
When did Duplicate Tab Closer launch?: Duplicate Tab Closer first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 10 Sept 2026
Built for: Firefox users who want to manage duplicate tabs
Model: B2C
Solves: Closing duplicate browser tabs to reduce clutter and keep browsing sessions organized.

Registered as

Firefox Add-ons: duplicate-tab-closer1

Developer

Taylor Lopez

Index record

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

Identity audit (13)

Slug: duplicate-tab-closer-mozilla-org
Lifecycle state recorded: 10 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 10 Sept 2026
Timeline basis: Indexed-at chronology (no inferred launch/funding milestones).
Name from: Derived from the project's own page and URL.
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 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/duplicate-tab-closer1

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