Does MultiView have a free plan?

Yes — MultiView is free to use.

What platforms does MultiView run on?

MultiView runs on the web and embeddable surfaces.

Is MultiView still maintained?

Unverified. MultiView 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 MultiView?

Similar projects tracked by PulseGate include Multi Split View, Multiview, and Multi-tab.

MultiView is developed by Sumalya Chatterjee.

When did MultiView launch?

MultiView first shipped in 2025.

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MultiView

Name: MultiView
Author: Sumalya Chatterjee

mozilla.orgBrowser DevTools & extensions

MultiView - Tab Manager is a Firefox extension that displays multiple websites side by side within a single tab. Users can choose layouts, resize and organize panels, add tabs, and apply themes with transparency and blur effects.

FreeWebEmbeddable

Visit mozilla.org

1alternative

8features

2025since

Overview

8 features

MultiView is a Browser DevTools & extensions project. It focuses on viewing and comparing multiple websites without switching between tabs or managing separate browser windows. It is built as a consumer product for firefox users who need side-by-side browsing for research, comparison, monitoring, or multitasking. It is available for free. It ships for the web and embeddable surfaces.

It is developed by Sumalya Chatterjee, and it first shipped in 2025. Key capabilities include side-by-side websites, custom layouts, and resizable panels. The interface is available in 32 languages, including Czech, German, and Greek. MultiView is currently in beta.

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

Side-by-side websites
Custom layouts
Resizable panels
Panel organization
Theme selection
Transparency controls
Blur effects
Tab importing

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

Indexed15 Sep · 15:39 UTC
MultiView - Tab Manager verified via Firefox Add-ons
Source: Firefox Add-ons · Open

Frequently asked questions about MultiView

What does MultiView do?: MultiView focuses on viewing and comparing multiple websites without switching between tabs or managing separate browser windows. It is catalogued under Browser DevTools & extensions on PulseGate.
Who should use MultiView?: MultiView is a consumer product built for firefox users who need side-by-side browsing for research, comparison, monitoring, or multitasking.
Does MultiView have a free plan?: Yes — MultiView is free to use.
What platforms does MultiView run on?: MultiView runs on the web and embeddable surfaces.
Is MultiView still maintained?: Unverified. MultiView 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 MultiView?: Similar projects tracked by PulseGate include Multi Split View, Multiview, and Multi-tab.Multi Split View Multiview Multi-tab
Who makes MultiView?: MultiView is developed by Sumalya Chatterjee.
When did MultiView launch?: MultiView first shipped in 2025.

At a glance

Pricing: Free
Platforms: Web
Status: 🟡 Beta
Built for: Firefox users who need side-by-side browsing for research, comparison, monitoring, or multitasking
Model: B2C
Solves: Viewing and comparing multiple websites without switching between tabs or managing separate browser windows.

Registered as

Firefox Add-ons: multiview-tab-manager

Developer

Sumalya Chatterjee

Index record

Indexed: 15 Sep 2026
Lifecycle: Alive
Last seen: 15 Sep 2026

Identity audit (13)

Slug: multiview-tab-manager-mozilla-org
Lifecycle state recorded: 15 Sept 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 15 Sept 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: 15 Sept 2026
Canonical URL: https://addons.mozilla.org/en-US/firefox/addon/multiview-tab-manager

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