# Claude Sidebar Modifier

> Modify the Claude.ai sidebar width or hide the sidebar entirely

Canonical page: [https://chrome-stats.com/d/claude-sidebar-modifier](https://chrome-stats.com/d/claude-sidebar-modifier)

## Overview

- **ID:** `claude-sidebar-modifier`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** cyanheads
- **Category:** appearance
- **Daily users:** 82
- **Weekly downloads:** 1
- **Rating:** 4.25 / 5 (4 ratings)
- **Version:** 1.5.0
- **Last updated:** 2025-01-04
- **First published:** 2024-10-14
- **Size:** 113 KB
- **Data as of:** 2026-09-10
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/claude-sidebar-modifier/)
- **Website:** [https://github.com/cyanheads/claude-sidebar-modifier](https://github.com/cyanheads/claude-sidebar-modifier)

## Description

This Firefox extension allows you to modify the sidebar behavior on <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/cf6f55cbba6731f7030d49478c86cb1b6c503e9ea8cb3f1a019bd0e646726ebe/http%3A//Claude.ai" rel="nofollow">Claude.ai</a>. You can adjust the sidebar width or completely disable it from popping in. Useful for users who want to optimize their screen real estate or prefer a specific sidebar width. Works only on Anthropic <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/cf6f55cbba6731f7030d49478c86cb1b6c503e9ea8cb3f1a019bd0e646726ebe/http%3A//Claude.ai" rel="nofollow">Claude.ai</a>

Source code can be found on Github <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/7b14a121b523fb7962dfa753117c52c20b740465936d4f48b0208d02ecd8ef2f/https%3A//github.com/cyanheads/claude-sidebar-modifier" rel="nofollow">claude-sidebar-modifier</a>

## Rankings

- #12,758 — Overall
- #12 — modify
- #38 — claude
- #39 — claude ai
- #72 — sidebar
- #75 — deepseek sidebar

## Permissions and access

### Permissions

- `activeTab`
- `storage`
- `https://*.claude.ai/*`
- `tabs`

### Content script matches

- `*.claude.ai`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Low 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/claude-sidebar-modifier)