What does Duplicate Finder do?

Duplicate Finder focuses on finding and removing duplicate bookmarks and browser tabs. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Duplicate Finder for?

Duplicate Finder is a consumer product built for firefox users managing bookmarks and tabs.

Is Duplicate Finder free?

Yes — Duplicate Finder is free to use.

What platforms does Duplicate Finder run on?

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

Is Duplicate Finder still active?

Unverified. Duplicate Finder 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 Duplicate Finder?

Similar projects tracked by PulseGate include Duplicate Bookmark(s) Finder, Duplicate Bookmarks Finder, and Duplicate Tab Detector.

Who makes Duplicate Finder?

Duplicate Finder is developed by Avery Young.

How long has Duplicate Finder been around?

Duplicate Finder first shipped in 2026.

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Duplicate Finder

Name: Duplicate Finder
Author: Avery Young

mozilla.orgBrowser DevTools & extensions

Duplicate Finder is a Firefox browser extension that flags duplicate bookmarks and tabs. It runs in Firefox on desktop platforms and requires access to browser tabs.

FreeWebEmbeddablemacOSWindowsLinux

Visit mozilla.org

2alternatives

4features

2026since

Overview

4 features

Duplicate Finder sits in PulseGate's Browser DevTools & extensions category. It focuses on finding and removing duplicate bookmarks and browser tabs. Duplicate Finder is a consumer product aimed at firefox users managing bookmarks and tabs. It is available for free. It ships for the web, embeddable surfaces, macOS, Windows, and Linux.

Avery Young builds and maintains Duplicate Finder, and it first shipped in 2026. Key capabilities include duplicate detection, bookmark scanning, and tab scanning. 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 detection
Bookmark scanning
Tab scanning
Browser integration

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 · 01:07 UTC
Duplicate Finder verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Duplicate Finder

What does Duplicate Finder do?: Duplicate Finder focuses on finding and removing duplicate bookmarks and browser tabs. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Duplicate Finder for?: Duplicate Finder is a consumer product built for firefox users managing bookmarks and tabs.
Is Duplicate Finder free?: Yes — Duplicate Finder is free to use.
What platforms does Duplicate Finder run on?: Duplicate Finder runs on the web, embeddable surfaces, macOS, Windows, and Linux.
Is Duplicate Finder still active?: Unverified. Duplicate Finder 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 Duplicate Finder?: Similar projects tracked by PulseGate include Duplicate Bookmark(s) Finder, Duplicate Bookmarks Finder, and Duplicate Tab Detector.Duplicate Bookmark(s) Finder Duplicate Bookmarks Finder Duplicate Tab Detector
Who makes Duplicate Finder?: Duplicate Finder is developed by Avery Young.
How long has Duplicate Finder been around?: Duplicate Finder first shipped in 2026.

At a glance

Pricing: Free
Platforms: Web
First seen: 10 Sept 2026
Built for: Firefox users managing bookmarks and tabs
Model: B2C
Solves: Finding and removing duplicate bookmarks and browser tabs.

Registered as

Firefox Add-ons: duplicate-finder

Developer

Avery Young

Index record

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

Identity audit (13)

Slug: duplicate-finder-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-finder

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