# Smart Script Manager

> Manage, organize, and activate custom JavaScript and CSS for every site.

Canonical page: [https://chrome-stats.com/d/smart-script-manager](https://chrome-stats.com/d/smart-script-manager)

## Overview

- **ID:** `smart-script-manager`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Victoria
- **Category:** appearance
- **Daily users:** 2
- **Weekly downloads:** 1
- **Version:** 2.1
- **Last updated:** 2025-10-13
- **First published:** 2025-10-10
- **Size:** 20 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/smart-script-manager/)

## Description

A complete environment for managing user scripts. Add, edit, and disable custom JavaScript or CSS per domain, instantly applying them whenever you visit. Perfect for developers who customize web behavior while keeping full control over when and where scripts run.

## Rankings

- #66,916 — Overall
- #112 — script
- #182 — smart
- #186 — smartbook
- #219 — smart tool
- #236 — smartphone

## Permissions and access

### Permissions

- `storage`
- `activeTab`
- `scripting`

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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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- [ScriptCat Beta](https://chrome-stats.com/d/scriptcat-pre) — 325 users, 5.00 / 5
- [UserScript Pro: Custom JS & CSS](https://chrome-stats.com/d/userscript-pro-custom-js-css) — 3 users, 5.00 / 5
- [Ace Script](https://chrome-stats.com/d/ace-script) — 1,067 users, 3.75 / 5
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Source: [Chrome-Stats](https://chrome-stats.com/d/smart-script-manager)
