By: Théo Ascensio Add-on
Displays selected tabs in a split view, either in a new tab or in new windows.Display up to 4 tabs side-by-side in a single tab or in multiple tiled windows. A powerful tool for comparing pages, monitoring feeds, and boosting productivity.
Overview
Features & Capabilities
User Growth & Download Statistics
Manifest V2 Add-on
- By:
- Théo Ascensio
- Daily users:
- 2,869 -17
- Rating:
- 4.44 (16)
- Version:
- 1.1.0 Last updated: 2025-06-18
- Version code:
- 5969589
- Creation date:
- 2025-06-13
- Risk:
- High risk impact Moderate risk likelihood
- Permissions:
- tabs
- storage
- contextMenus
- notifications
- webRequest
- webRequestBlocking
- <all_urls>
- tabs
- Size:
- 116.44KB
- Email:
- th*****@me.com
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-07-26
- Compare stats and ranking:
- Multi Split View vs Side by Side - Split view for Firefox
- Multi Split View vs Browser SplitView Master
- Multi Split View vs Split-Screen Browser Tool
Contact the developer
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User Reviews
Pros
- Allows splitting a tab into multiple viewports (3–4) for tiled layouts.
- Works very well and meets user expectations; described as reliable and effective.
- Comparable to or better than Edge split-screen; popular Firefox substitute.
Cons
- Not actively maintained / no longer being supported.
- Conflicts with other extensions or plugins; can block communication between extensions.
- May require restarts or re-enabling other extensions (e.g., uBlock) to function with merged tabs.
- Single-tab mode can break some pages and complicate rendering in certain sites.
- The extension applies a dark background to some pages, requiring workarounds like Stylish.
Recent reviews
by Ft*****, 2026-05-03
by Fi*****, 2026-04-29
Is Multi Split View Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
Multi Split View requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.
Risk impact analysis details
- Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
- High ****** *** ********* ** ******* *** ******* ******* ** ****** *** *** ******** ******
- Medium ******* ******* ************* ***** *** ** ******* *** **** ******* ****** ******** *******
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
Multi Split View is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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