# Script Runner

> Script injector for JavaScript and CSS!

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

## Overview

- **ID:** `script-runner`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** ankur1218
- **Category:** web-development,appearance
- **Daily users:** 396
- **Weekly downloads:** 6
- **Rating:** 5.00 / 5 (5 ratings)
- **Version:** 2.1
- **Last updated:** 2024-10-11
- **First published:** 2023-02-23
- **Size:** 20 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/script-runner/)

## Description

**Script Runner** is a powerful Chrome extension that allows users to enhance any website by injecting custom JavaScript and CSS scripts. With its easy-to-use interface, you can add, save, and manage site-specific scripts that activate automatically whenever you visit those sites. Additionally, Script Runner supports global scripts that run on all websites, giving you complete control over your browsing experience.

Access the console directly from the extension's dropdown menu, add your JavaScript or CSS code snippets, and save them instantly to start customizing your web pages in real-time. This intuitive tool is perfect for developers, designers, and power users who want to personalize and improve website functionality and style seamlessly.

## Rankings

- #5,754 — Overall
- #5 — script
- #52 — javascript
- #122 — scrape
- #149 — console

## Permissions and access

### Permissions

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

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** Low 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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Source: [Chrome-Stats](https://chrome-stats.com/d/script-runner)