# Run JavaScript

> Script injector for JavaScript and CSS!

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

## Overview

- **ID:** `run-javascript`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** datttyt
- **Category:** web-development,search-tools
- **Daily users:** 2,265
- **Weekly downloads:** 135
- **Rating:** 5.00 / 5 (3 ratings)
- **Version:** 1.0
- **Last updated:** 2025-06-14
- **First published:** 2025-06-11
- **Size:** 20 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/run-javascript/)

## Rankings

- #2,023 — Overall
- #216 — Web Development
- #238 — Search Tools
- #4 — javascript
- #9 — script
- #106 — scrape

## Permissions and access

### Permissions

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

### Host permissions

- `<all_urls>`

### 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/run-javascript)