# User Script Loader

> A minimal extension to store and inject custom JavaScript (user scripts) into specified pages.

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

## Overview

- **ID:** `userscript`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** userscript
- **Category:** other
- **Daily users:** 13
- **Weekly downloads:** 5
- **Version:** 1.0.0
- **Last updated:** 2025-09-23
- **First published:** 2025-09-20
- **Size:** 11 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/userscript/)
- **Website:** [https://ok8386.moe/](https://ok8386.moe/)

## Description

Lightweight user script manager that lets you save and inject your own JavaScript into chosen websites. Simple, minimal, and privacy-friendly.

## Rankings

- #29,933 — Overall
- #48 — script
- #130 — javascript
- #155 — inject

## Permissions and access

### Permissions

- `storage`
- `<all_urls>`
- `tabs`

## Safety

- **Risk impact:** High 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).

## Similar extensions and apps

- [User Script Loader](https://chrome-stats.com/d/user-script-loader) — 13 users
- [User Scripts Manager](https://chrome-stats.com/d/scripts-manager) — 1 users
- [run-a-script](https://chrome-stats.com/d/run-a-script) — 123 users, 5.00 / 5
- [Scrypter](https://chrome-stats.com/d/scrypter)
- [tiny user script manager](https://chrome-stats.com/d/tinyuserscriptmanager)
- [Wildmonkey](https://chrome-stats.com/d/wildmonkey) — 19 users, 3.50 / 5
- [Custom Site JS](https://chrome-stats.com/d/custom-site-js) — 224 users, 4.57 / 5
- [UserScript Pro: Custom JS & CSS](https://chrome-stats.com/d/userscript-pro-custom-js-css) — 3 users, 5.00 / 5
- [Script Runner](https://chrome-stats.com/d/script-runner) — 396 users, 5.00 / 5
- [BoostedScripts](https://chrome-stats.com/d/boostedscripts)
- [Smart Script Manager](https://chrome-stats.com/d/smart-script-manager) — 2 users
- [Sakura - Custom JS & CSS](https://chrome-stats.com/d/sakura-custom-js-css) — 2 users

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