Claude Chat Width Customizer

Name: Claude Chat Width Customizer
Rating: 5 (2 reviews)
Author: DoubleGate

Claude.AI ... tired of Claude's narrow default chat? Expand your conversations to fill your screen. Slider control, quick presets, and theme options — all without touching the sidebar. Your settings sync across all Claude tabs instantly!

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Features & Capabilities

More screen. More Claude. Give your conversations room to breathe—expand the chat area from 40% to full-screen width with an intuitive slider or one-click presets. Perfect for ultra-wide monitors and power users who want more from every session.

Key Features:

Adjustable slider for precise width control (40-100%)
Quick presets: Narrow (50%), Medium (70%), Wide (85%), Full (100%)
Real-time preview as you adjust
Theme support: Light, Dark, or System (follows your OS preference)
Instant sync across all open Claude tabs
Sidebar-safe: Only the main chat area changes—navigation stays untouched
Privacy-first: All settings stored locally, zero data collection

How It Works: Click the extension icon while on claude.ai, drag the slider or tap a preset, and watch your chat expand instantly. Your preference saves automatically and persists across browser sessions.

Open Source This extension is free and open source. View the code, report issues, or contribute on GitHub.

User Growth & Download Statistics

Add-on

By:

Daily users:

Rating:

Version:

1.7.0 Last updated: 2026-01-11

Version code:

6116034

Creation date:

2026-01-06

Risk:

Permissions:

Content scripts matches:

claude.ai

Size:

138.39KB

Email:

pa*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 11,373 ▲ 579

Other rankings

#16 in customize keyword 24

#25 in claude keyword 54 ▲ 1

#31 in claude ai keyword 65

#89 in custom feed keyword 21 ▲ 1

#91 in custom font keyword 29 ▲ 1

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For Developers

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Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

DoubleGate

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/claude-chat-width-customizer/

Email:

pa*****@gmail.com

Website:

https://github.com/doublegate/claude-width-extension

User Reviews

does exactly what it says. absolutely perfect. i'm glad this existed when i went looking for it.

by se*****, 2026-05-09

march 24 2026, works as intended

by Fr*****, 2026-03-24

View all user reviews ›

Is Claude Chat Width Customizer 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.

Claude Chat Width Customizer 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.
High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
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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.

Claude Chat Width Customizer 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.
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
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