Duplicate Tab Closer

Name: Duplicate Tab Closer
Rating: 5 (1 reviews)
Author: Saif774044

By: Saif774044 Add-on

Counts duplicate tabs on the icon. Click to close older copies and keep the most recently used tab.

Overview

Firefox Add-ons Store

Daily users

Data as of 2026-09-05

Rating:

5.00

(1)

Version:

1.1.0

Last updated: 2026-05-16

Features & Capabilities

Duplicate Tab Closer keeps your tabs clean with one click.

The toolbar icon shows a red number — that's how many duplicate tabs are open right now. Click it and you get two options:

Close duplicates — closes older copies and keeps the tab you used most recently. Even if a duplicate is the very newest one created, if you haven't touched it in a while it gets closed.
Close duplicates · keep pinned — same idea, but pinned tabs are never closed. If a pinned version of a page exists, all the non-pinned copies close.

Features: - Works across all your windows, not just the current one - Pinned tabs are counted as duplicates (and kept safe in pinned-mode) - Smart URL matching — tracking parameters (utm_, fbclid, gclid, etc.) are ignored so the same page isn't seen as different just because of ad tracking - Live badge count updates as you browse - No accounts, no logins, no setup

Privacy:

No network requests at all
No analytics, no tracking, no ads
Your tab data never leaves your device

User Growth & Download Statistics

Add-on

By:

Saif774044

Daily users:

Rating:

5.00

(1)

Version:

1.1.0 Last updated: 2026-05-16

Version code:

6260210

Creation date:

2026-05-13

Firefox add-on GUID:

duplicate-tab-closer@local.extension

Firefox add-on numeric ID:

3012654

Firefox on Android:

Risk:

Permissions:

Size:

49.63KB

Email:

sa*****@gmail.com

URLs:

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-05

Compare stats and ranking:

Ranking

# 52,851 ▲

Other rankings

#197 in close keyword 21 ▲

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

Saif774044

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/dupe-tab-closer/

Email:

sa*****@gmail.com

Is Duplicate Tab Closer Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Duplicate Tab Closer requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Duplicate Tab Closer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
Good **** ********* *** **** **** *******