Tab Merger focuses on combining tabs scattered across multiple Firefox windows into one organized window. It is catalogued under Browser DevTools & extensions on PulseGate.

Who should use Tab Merger?

Tab Merger is a consumer product built for firefox users who manage tabs across multiple windows.

Does Tab Merger have a free plan?

Yes — Tab Merger is free to use.

What platforms does Tab Merger run on?

Tab Merger runs on the web and embeddable surfaces.

Is Tab Merger still active?

Unverified. Tab Merger 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 Tab Merger?

Similar projects tracked by PulseGate include Merge Tabs, Tab Split Merger, and Window Merger.

Who develops Tab Merger?

Tab Merger is developed by Simple Tasks.

How long has Tab Merger been around?

Tab Merger first shipped in 2024.

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Tab Merger

Name: Tab Merger
Author: Simple Tasks

mozilla.orgBrowser DevTools & extensions

Tab Merger is a Firefox extension that moves tabs from all non-private or private browser windows into the current window. Users can merge tabs by clicking its toolbar icon, while Firefox privacy limitations keep private and non-private tabs separate.

FreeWebEmbeddable

Visit mozilla.org

2alternatives

6features

2024since

Overview

6 features

In the Browser DevTools & extensions space, Tab Merger takes a focused approach. It focuses on combining tabs scattered across multiple Firefox windows into one organized window. Tab Merger is a consumer product aimed at firefox users who manage tabs across multiple windows. It is available for free. It ships for the web and embeddable surfaces.

Behind Tab Merger is Simple Tasks, and it first shipped in 2024. Among its 6 catalogued features are one-click tab merging, multi-window tab management, and private window support. The interface is available in 32 languages, including Czech, German, and Greek.

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

One-click tab merging
Multi-window tab management
Private window support
Minimized window support
Toolbar button
No data collection

Built with & integrations

Runs on

BrowserEmbeddable

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed13 Sep · 15:38 UTC
Tab Merger verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Tab Merger

What is Tab Merger?: Tab Merger focuses on combining tabs scattered across multiple Firefox windows into one organized window. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Tab Merger?: Tab Merger is a consumer product built for firefox users who manage tabs across multiple windows.
Does Tab Merger have a free plan?: Yes — Tab Merger is free to use.
What platforms does Tab Merger run on?: Tab Merger runs on the web and embeddable surfaces.
Is Tab Merger still active?: Unverified. Tab Merger 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 Tab Merger?: Similar projects tracked by PulseGate include Merge Tabs, Tab Split Merger, and Window Merger.Merge Tabs Tab Split Merger Window Merger
Who develops Tab Merger?: Tab Merger is developed by Simple Tasks.
How long has Tab Merger been around?: Tab Merger first shipped in 2024.

At a glance

Pricing: Free
Platforms: Web
Built for: Firefox users who manage tabs across multiple windows
Model: B2C
Solves: Combining tabs scattered across multiple Firefox windows into one organized window.

Registered as

Firefox Add-ons: tab-merger

Developer

Simple Tasks

Index record

Indexed: 13 Sep 2026
Lifecycle: Alive
Last seen: 13 Sep 2026

Identity audit (13)

Slug: tab-merger-mozilla-org
Lifecycle state recorded: 13 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 13 Sep 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
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: 13 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/tab-merger

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