# User Scripts Manager

> User Scripts Manager is a powerful yet simple extension that lets you customize your browsing experience by injecting custom JavaScript into websites of your choice.

Canonical page: [https://chrome-stats.com/d/scripts-manager?hl=pt](https://chrome-stats.com/d/scripts-manager?hl=pt)

## Overview

- **ID:** `scripts-manager`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** X X
- **Category:** web-development
- **Daily users:** 1
- **Version:** 1.1.2
- **Last updated:** 2026-07-20
- **First published:** 2026-06-30
- **Size:** 4.58 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/scripts-manager/)

## Rankings

- #121,977 — Overall
- #199 — script

## Permissions and access

### Permissions

- `storage`
- `tabs`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High 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).

## Similar extensions and apps

- [User Script Loader](https://chrome-stats.com/d/userscript) — 13 users
- [User Script Loader](https://chrome-stats.com/d/user-script-loader) — 13 users
- [Smart Script Manager](https://chrome-stats.com/d/smart-script-manager) — 2 users
- [Script Runner](https://chrome-stats.com/d/script-runner) — 396 users, 5.00 / 5
- [Content Scripts Extension](https://chrome-stats.com/d/content-scripts-extension) — 1 users
- [tiny user script manager](https://chrome-stats.com/d/tinyuserscriptmanager)
- [UserScript Pro: Custom JS & CSS](https://chrome-stats.com/d/userscript-pro-custom-js-css) — 3 users, 5.00 / 5
- [Custom Script Injector](https://chrome-stats.com/d/custom-script-injector) — 2 users
- [run-a-script](https://chrome-stats.com/d/run-a-script) — 123 users, 5.00 / 5
- [Custom Site JS](https://chrome-stats.com/d/custom-site-js) — 224 users, 4.57 / 5
- [ScriptCat](https://chrome-stats.com/d/scriptcat) — 10,006 users, 4.74 / 5
- [Wildmonkey](https://chrome-stats.com/d/wildmonkey) — 19 users, 3.50 / 5

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Source: [Chrome-Stats](https://chrome-stats.com/d/scripts-manager?hl=pt)