Who should use Mosaic Grid?

Mosaic Grid is a consumer product built for firefox users who manage many open tabs.

Does Mosaic Grid have a free plan?

Yes — Mosaic Grid is free to use.

What platforms does Mosaic Grid run on?

Mosaic Grid runs on the web and embeddable surfaces.

Is Mosaic Grid still maintained?

Unverified. Mosaic Grid 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.

Who develops Mosaic Grid?

Mosaic Grid is developed by Darrell C. Sanchez.

When did Mosaic Grid launch?

Mosaic Grid first shipped in 2026.

Back to the index

Mosaic Grid

Name: Mosaic Grid
Author: Darrell C. Sanchez

mozilla.orgBrowser DevTools & extensions

Mosaic Grid is a Firefox browser extension that helps users choose a near-square row-and-column layout capable of holding a given tab count. It is a lightweight consumer utility with no stated data collection.

FreeWebEmbeddable

Visit mozilla.org

Overview

5 features

Mosaic Grid sits in PulseGate's Browser DevTools & extensions category. It focuses on choosing a near-square grid layout that accommodates the current number of browser tabs. It is built as a consumer product for firefox users who manage many open tabs. It is available for free. It runs on the web and embeddable surfaces.

Behind Mosaic Grid is Darrell C. Sanchez, and it first shipped in 2026. Key capabilities include tab count layout, row selection, and column selection. 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 count layout
Row selection
Column selection
Near-square grids
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

Indexed3 Sept · 21:44 UTC
Mosaic Grid verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about Mosaic Grid

What does Mosaic Grid do?: Mosaic Grid focuses on choosing a near-square grid layout that accommodates the current number of browser tabs. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use Mosaic Grid?: Mosaic Grid is a consumer product built for firefox users who manage many open tabs.
Does Mosaic Grid have a free plan?: Yes — Mosaic Grid is free to use.
What platforms does Mosaic Grid run on?: Mosaic Grid runs on the web and embeddable surfaces.
Is Mosaic Grid still maintained?: Unverified. Mosaic Grid 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.
Who develops Mosaic Grid?: Mosaic Grid is developed by Darrell C. Sanchez.
When did Mosaic Grid launch?: Mosaic Grid first shipped in 2026.
What languages does Mosaic Grid support?: The interface is available in 32 languages, including Czech, German, and Greek.

At a glance

Pricing: Free
Platforms: Web
First seen: 3 Sept 2026
Built for: Firefox users who manage many open tabs
Model: B2C
Solves: Choosing a near-square grid layout that accommodates the current number of browser tabs.

Registered as

Firefox Add-ons: mosaic-grid

Developer

Darrell C. Sanchez

Index record

Indexed: 3 Sept 2026
Lifecycle: Alive
First seen: Sept 2026
Last seen: 3 Sept 2026

Identity audit (13)

Slug: mosaic-grid-mozilla-org
Lifecycle last checked: 8 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 3 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: 3 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/mosaic-grid

Ship this? Send a correction — no account, and you get a link to follow it.

Similar projects

Closest matches by what these projects do