# More Split Views

> Fit up to 4 tabs into a single split view or create your own arrangement in our custom layout editor.

Canonical page: [https://chrome-stats.com/d/more-split-views](https://chrome-stats.com/d/more-split-views)

## Overview

- **ID:** `more-split-views`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** KHROTU
- **Category:** web-development,tabs
- **Daily users:** 29
- **Weekly downloads:** 11
- **Rating:** 2.00 / 5 (1 ratings)
- **Version:** 0.1.1
- **Last updated:** 2026-06-13
- **First published:** 2026-06-10
- **Size:** 28 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/more-split-views/)
- **Website:** [https://github.com/KHROTU/msv/issues](https://github.com/KHROTU/msv/issues)

## Description

More Split Views enhances Firefox's native Split View functionality by allowing you to arrange up to 4 tabs in a single window using customizable grid layouts.

Features
<ul><li><strong>Multi-Pane Layouts:</strong> Go beyond the default 2-pane split. Choose from 7 built-in layouts or create your own in the editor.</li><li><strong>Custom Layout Editor:</strong> Create your own pane arrangements using the visual editor.</li><li><strong>Flexible Modes:</strong> Apply splits directly in the current tab (using iframes) or open each pane as a separate popup window tiled to match your layout.</li></ul>
How it works

Since the WebExtensions API does not yet support creating native split views programmatically, this add-on builds a split view inside a single tab using CSS Grid and iframes. For the "Open as windows" mode, it uses windows.create() to create, resize, and relocate popup windows.

Limitations
<ul><li>Websites that block embedding via <code>X-Frame-Options</code> or CSP <code>frame-ancestors</code> cannot be displayed in iframe mode. Use "Open as windows" for these sites.</li><li>Built-in pages like <code>about:newtab</code> do not support content scripts; apply the split view from a standard webpage.</li></ul>

## Rankings

- #20,704 — Overall
- #224 — iframe

## Permissions and access

### Permissions

- `activeTab`
- `scripting`
- `storage`
- `tabs`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/more-split-views)