Claude Sidebar Modifier Firefox

Claude Sidebar Modifier

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

Features & Capabilities

This Firefox extension allows you to modify the sidebar behavior on Claude.ai. 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 Claude.ai

Source code can be found on Github claude-sidebar-modifier

User Growth & Download Statistics

Manifest V2 Add-on
By:
cyanheads
Daily users:
73 -1
Rating:
4.25
(4)
Version:
1.5.0 Last updated: 2025-01-04
Version code:
5869785
Creation date:
2024-10-14
Risk:
High risk impact Low risk likelihood
Permissions:
Content scripts matches:
  • *.claude.ai
Size:
112.72KB
Email:
ca*****@caseyjhand.com
URLs:
Website
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-19
Compare stats and ranking:

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:
cyanheads
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/claude-sidebar-modifier/
Email:
ca*****@caseyjhand.com
Website:
https://github.com/cyanheads/claude-sidebar-modifier

User Reviews

it's a pretty pointless extension. i don't care about the sidebar I want the main chat to be wide
by Pa*****, 2025-12-18
View all user reviews ›

Is Claude Sidebar Modifier 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 Sidebar Modifier 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 ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • High ******* ****** ** *** ********* ******** *********
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 Sidebar Modifier has earned a fairly good reputation and likely can be trusted.

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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