# Duplicate Tabs Closer

> Detects and automatically closes duplicate tabs.

Canonical page: [https://chrome-stats.com/d/duplicate-tabs-closer](https://chrome-stats.com/d/duplicate-tabs-closer)

## Overview

- **ID:** `duplicate-tabs-closer`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Peuj
- **Category:** tabs
- **Daily users:** 7,423
- **Weekly downloads:** 125
- **Rating:** 4.48 / 5 (128 ratings)
- **Version:** 4.3.1
- **Last updated:** 2026-09-09
- **First published:** 2013-01-20
- **Size:** 785 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/duplicate-tabs-closer/)
- **Website:** [https://github.com/Peuj/duplicate-tabs-closer/issues](https://github.com/Peuj/duplicate-tabs-closer/issues)

## Description

**Duplicate Tabs Closer** is a powerful Chrome extension designed to detect and automatically close duplicate browser tabs to keep your workspace organized and efficient. It offers customizable detection settings such as ignoring URL case, 'www' prefixes, and URL parts like hash or search queries. Users can define whitelist URLs and set tab priority rules to decide which duplicates to keep. The extension supports various scopes including active windows or all windows, as well as container-aware detection.

With options to automatically close duplicates, activate remaining tabs, or apply tab behavior after closing, this extension maximizes your control over tab management. It also features customizable badge colors to indicate the number of duplicates and supports a hotkey (Alt+Shift+W) to close all duplicate tabs quickly. Whether you want silent cleaning or notification-based monitoring, Duplicate Tabs Closer streamlines your browsing experience effectively.

## Rankings

- #923 — Overall
- #67 — Tabs
- #8 — close
- #19 — education
- #32 — catalog
- #38 — education

## Permissions and access

### Permissions

- `tabs`
- `webNavigation`
- `storage`
- `contextualIdentities`
- `sessions`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension was recently updated in the past month. New updates may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

## Review summary

Users generally praise the add-on for effectively reducing tab clutter and boosting productivity, with simple and useful features like filters and the option to delete newer duplicates. However, reliability is a common concern, especially across multiple windows and different machines, plus occasional false positives that close non-duplicates (including local IP tabs). UI clarity and the semantics of what counts as a duplicate are also recurring topics, along with a request for better localization. Overall, solid functionality tempered by reliability and UX caveats.

### Pros

- Generally works well and reduces tab clutter, with reviewers noting a clear productivity improvement.
- Simple, straightforward, and effective to use.
- Helpful features like filters to tailor deduping and the option to delete newer duplicates.
- Some reviewers praised it highly, including comments like "Excellent add on!" and "Absolutely excellent. 10/10.", reflecting strong user satisfaction.
- The ability to automatically close older duplicates when a new duplicate opens was highlighted as a desirable option.

### Cons

- Inconsistent reliability across windows and devices; reports that it often only works in one window or not at all after moving to another PC.
- It can close non-duplicates, including local network tabs or basic local IPs (false positives).
- UI/UX can be confusing, especially around the close controls and what the "close all" function does.
- There is confusion about what constitutes a duplicate (some users expect exact URL matches, not domain-based duplicates).
- Localization support is lacking (Polish language support mentioned as absent).

## Similar extensions and apps

- [Duplicate Tabs Closer](https://chrome-stats.com/d/duplicate-tabs-closer-updated) — 84 users, 4.50 / 5
- [Dupli Tabs Closer](https://chrome-stats.com/d/dupli-tabs-closer) — 5 users
- [Auto Close Duplicate Tabs](https://chrome-stats.com/d/close_duplicate_tabs) — 4 users
- [Auto Close Duplicate Tabs](https://chrome-stats.com/d/autocloseduplicatetabs) — 3 users
- [Close Duplicate Tabs on URL Change](https://chrome-stats.com/d/close-dup-tabs-on-url-change) — 4 users
- [Auto Close Duplicate Tabs](https://chrome-stats.com/d/auto-close-duplicate-tabs) — 58 users, 4.47 / 5
- [DuDup Tabs Closer](https://chrome-stats.com/d/dudup-tabs-closer) — 5 users
- [Close Other Duplicate Tabs](https://chrome-stats.com/d/close-other-duplicate-tabs) — 4 users, 3.00 / 5
- [Duplicate Tab Detector](https://chrome-stats.com/d/duplicate-tab-detector) — 349 users, 4.78 / 5
- [Close New Duplicate Tabs](https://chrome-stats.com/d/close-new-duplicate-tabs) — 132 users, 5.00 / 5
- [Duplicate Tab Closer](https://chrome-stats.com/d/duplicate-tab-closer) — 34 users, 4.00 / 5
- [Close Same Tabs](https://chrome-stats.com/d/close-same-tabs) — 5 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/duplicate-tabs-closer)