Merge Tabs focuses on combining tabs scattered across multiple Firefox windows into a single window. It is catalogued under Browser DevTools & extensions on PulseGate.

Who is Merge Tabs for?

Merge Tabs is a consumer product built for firefox users who manage tabs across multiple windows.

Yes — Merge Tabs is free to use.

Is Merge Tabs still active?

Unverified. Merge Tabs 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 Merge Tabs?

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

Who develops Merge Tabs?

Merge Tabs is developed by bremert.

How long has Merge Tabs been around?

Merge Tabs first shipped in 2019.

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Merge Tabs

Name: Merge Tabs
Author: bremert

mozilla.orgBrowser DevTools & extensions

Merge Tabs is a Firefox browser extension that merges tabs from multiple browser windows into one window. It is intended for users who want to consolidate and organize open tabs more efficiently.

FreeWebEmbeddableWindowsmacOSLinux

Visit mozilla.org

2alternatives

3features

2019since

Overview

3 features

In the Browser DevTools & extensions space, Merge Tabs takes a focused approach. It focuses on combining tabs scattered across multiple Firefox windows into a single window. It is built as a consumer product for firefox users who manage tabs across multiple windows. It is available for free. It runs on the web, embeddable surfaces, Windows, macOS, and Linux.

It is developed by bremert, and it first shipped in 2019. Among its 3 catalogued features are tab merging, window consolidation, and firefox integration. The interface is available in 32 languages, including Czech, German, and Greek.

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

Tab merging
Window consolidation
Firefox integration

Built with & integrations

Runs on

BrowserEmbeddableWindowsmacOSLinux

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of ServiceFree tierMulti-languageStore-verified publisher

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed14 Sep · 01:24 UTC
Merge Tabs verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Merge Tabs

What is Merge Tabs?: Merge Tabs focuses on combining tabs scattered across multiple Firefox windows into a single window. It is catalogued under Browser DevTools & extensions on PulseGate.
Who is Merge Tabs for?: Merge Tabs is a consumer product built for firefox users who manage tabs across multiple windows.
Is Merge Tabs free?: Yes — Merge Tabs is free to use.
What platforms does Merge Tabs run on?: Merge Tabs runs on the web, embeddable surfaces, Windows, macOS, and Linux.
Is Merge Tabs still active?: Unverified. Merge Tabs 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 Merge Tabs?: Similar projects tracked by PulseGate include Tab Merger, Tab Split Merger, and Merge Windows.Tab Merger Tab Split Merger Merge Windows
Who develops Merge Tabs?: Merge Tabs is developed by bremert.
How long has Merge Tabs been around?: Merge Tabs first shipped in 2019.

At a glance

Pricing: Free
Platforms: Web
First seen: 14 Sep 2026
Built for: Firefox users who manage tabs across multiple windows
Model: B2C
Solves: Combining tabs scattered across multiple Firefox windows into a single window.

Registered as

Firefox Add-ons: merge-tabs

Developer

bremert

Index record

Indexed: 14 Sep 2026
Lifecycle: Alive
First seen: Sep 2026
Last seen: 14 Sep 2026

Identity audit (13)

Slug: merge-tabs-mozilla-org
Lifecycle state recorded: 14 Sep 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 14 Sep 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: 14 Sep 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/merge-tabs

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