# Dedupe: Tab Deduplicator

> Switch to existing tab instead of opening duplicate

Canonical page: [https://chrome-stats.com/d/dedupe-tab-deduplicator](https://chrome-stats.com/d/dedupe-tab-deduplicator)

## Overview

- **ID:** `dedupe-tab-deduplicator`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Scout
- **Category:** tabs
- **Daily users:** 10
- **Weekly downloads:** 1
- **Version:** 2.1
- **Last updated:** 2026-03-17
- **First published:** 2026-02-14
- **Size:** 297 KB
- **Data as of:** 2026-09-08
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/dedupe-tab-deduplicator/)
- **Website:** [https://github.com/BraedenSmith29/dedupe](https://github.com/BraedenSmith29/dedupe)

## Description

💬 Description

Dedupe is a Firefox browser extension that minimizes duplicate tabs, keeping you organized and saving some system resources. It works by scanning active tabs whenever you open a new one to check if you're navigating to a page you already have a tab for and, if it finds one, just switches to that tab instead.

✨ Features

<strong>Automatic deduplication</strong>: Detects duplicate tabs on open and handles them based on your configured behavior.

<strong>Popup with duplicate viewer</strong>: Lists current duplicate tabs so you can close them individually or all at once.

<strong>Pause toggle</strong>: Temporarily disable the extension via keybinding or popup. The icon reflects the current state.

<strong>Keybindings</strong>
- Toggle pause
- Detach the current tab (or selected tabs) into a new window

<strong>Domain whitelist/blacklist</strong>: Exclude specific domains from deduplication.

<strong>Configurable behavior</strong>
- Which navigation types trigger deduplication (new tabs, new windows, redirects, etc.)
- Whether to close the new tab or the existing one
- Whether to auto-focus the surviving tab
- URL comparison logic

## Rankings

- #33,651 — Overall
- #55 — exist

## Permissions and access

### Permissions

- `storage`
- `tabs`
- `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 has low user count. Unpopular extensions 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).

## Similar extensions and apps

- [Live Tab Deduplication](https://chrome-stats.com/d/live-tab-deduplication)
- [Tab Deduper](https://chrome-stats.com/d/tab-deduper) — 45 users, 4.40 / 5
- [Duplicate Tab Detector](https://chrome-stats.com/d/duplicate-tab-detector) — 342 users, 4.78 / 5
- [Tab Deduplicator](https://chrome-stats.com/d/tab-deduplicator) — 3 users, 3.00 / 5
- [Tab Duplicator](https://chrome-stats.com/d/tab-duplicator) — 34 users, 3.00 / 5
- [Tabs De Clutter](https://chrome-stats.com/d/tabs-de-clutter)
- [dedup](https://chrome-stats.com/d/dedup) — 2 users, 1.00 / 5
- [DuDup Tabs Closer](https://chrome-stats.com/d/dudup-tabs-closer) — 5 users
- [Duplicate Tabs Remover](https://chrome-stats.com/d/duplicate-tabs-remover) — 33 users
- [Tab Options - Open source](https://chrome-stats.com/d/tab-options-open-source) — 4 users, 4.00 / 5
- [Close Duplicate Tabs](https://chrome-stats.com/d/close-duplicate-tabs-on) — 3 users
- [Reuse Tabs](https://chrome-stats.com/d/reuse-tabs1) — 9 users, 5.00 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/dedupe-tab-deduplicator)