# Stylus

> Redesign your favorite websites with Stylus, an actively developed and community driven userstyles manager. Easily install custom themes from popular online repositories, or create, edit, and manage your own personalized CSS stylesheets.

Canonical page: [https://chrome-stats.com/d/styl-us](https://chrome-stats.com/d/styl-us)

## Overview

- **ID:** `styl-us`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Stylus Team
- **Category:** web-development,appearance
- **Daily users:** 132,779
- **Weekly downloads:** 2,746
- **Rating:** 4.67 / 5 (1,224 ratings)
- **Version:** 2.4.11
- **Last updated:** 2026-08-20
- **First published:** 2017-05-14
- **Size:** 1.20 MB
- **Data as of:** 2026-09-07
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/styl-us/)
- **Website:** [https://github.com/openstyles/stylus/issues](https://github.com/openstyles/stylus/issues)

## Description

Stylus is a community-driven manager for userstyles that lets you redesign websites. You can easily install themes from popular repositories or compose, edit, and manage your own CSS styles. Features include a backup of your entire style database, configurable automatic updates, and a highly customizable UI with theming, layouts, and color options.

It also supports installing styles from .user.css or .user.styl URLs, offers optional code validators, and provides straightforward privacy with minimal data collection and clear permission usage. This extension emphasizes user control and compatibility with other userstyles tools.

## Rankings

- #139 — Overall
- #4 — Web Development
- #10 — Appearance
- #1 — status
- #3 — install
- #3 — style

## Permissions and access

### Permissions

- `alarms`
- `contextMenus`
- `storage`
- `tabs`
- `unlimitedStorage`
- `webNavigation`
- `webRequest`
- `webRequestBlocking`
- `<all_urls>`

### Content script matches

- `<all_urls>`
- `userstyles.org`

## Safety

- **Risk impact:** Very high risk impact
- **Risk likelihood:** Very 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 was recently updated in the past month. New updates 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).

## Review summary

Most reviews praise Stylus for being simple to use and for enabling quick, customizable visual styles. It’s described as very useful and a safer alternative to Stylish. A minority report reliability or compatibility issues with other extensions (such as ad blockers) and some uneven behavior on certain setups, plus a rare claim of broader filtering. Overall, the positives around ease of use and styling flexibility dominate, with occasional notes about compatibility concerns.

### Pros

- Simple and user-friendly interface
- Easy customization of visual styles
- Very useful and meets styling needs
- Perceived safer alternative to Stylish

## Similar extensions and apps

- [RCP Stylo](https://chrome-stats.com/d/rcp-stylo)
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- [reStyle](https://chrome-stats.com/d/re-style) — 26 users, 3.30 / 5
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- [HM Style](https://chrome-stats.com/d/hm-style)

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Source: [Chrome-Stats](https://chrome-stats.com/d/styl-us)