# JavaScript Warning

> You can store websites in a list which are not supposed to execute JavaScript code. If they try to do so the Add-on warns you.

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

## Overview

- **ID:** `javascript-warning`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** w2c
- **Category:** privacy-security,alerts-updates
- **Daily users:** 1,349
- **Weekly downloads:** 5
- **Rating:** 4.42 / 5 (19 ratings)
- **Version:** 1.2resigned1
- **Last updated:** 2024-04-25
- **First published:** 2016-12-15
- **Size:** 10 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/javascript-warning/)

## Description

JavaScript Warning is a powerful Chrome extension designed to enhance your browsing security and control by allowing you to create a custom list of websites where JavaScript execution is restricted. When a site in your list attempts to run JavaScript code, the extension immediately alerts you, giving you full control over your browsing experience and protecting you from unwanted scripts.

With its user-friendly interface, JavaScript Warning empowers users to manage script permissions effortlessly. Whether you want to prevent distractions, increase privacy, or safeguard against malicious scripts, this extension provides an effective solution to monitor and control JavaScript activity across specific websites.

## Rankings

- #2,800 — Overall
- #71 — Alerts & Updates
- #6 — javascript
- #19 — script
- #54 — earn
- #115 — scrape

## Permissions and access

### Permissions

- `storage`

### 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).

## Review summary

User reviews for the 'JavaScript Warning' Firefox add-on are mixed but tend toward negative, with multiple users reporting that the add-on does not function as intended. Positive feedback is rare and may be viewed with skepticism. Overall, users express dissatisfaction due to lack of functionality and questionable review authenticity.

### Pros

- Some users perceive the add-on positively, indicated by comments such as 'very good'.

### Cons

- The add-on does not work as expected or promised, as multiple reviews state it does nothing.
- There is skepticism about the legitimacy of positive reviews, suggesting trust issues with the add-on's credibility.

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