# User JavaScript and CSS KL

> Inject your own custom JavaScript and CSS into any website.

Canonical page: [https://chrome-stats.com/d/user-javascript-and-css-kl](https://chrome-stats.com/d/user-javascript-and-css-kl)

## Overview

- **ID:** `user-javascript-and-css-kl`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Melvin Reed
- **Category:** other
- **Daily users:** 120
- **Weekly downloads:** 4
- **Rating:** 4.00 / 5 (1 ratings)
- **Version:** 1.3
- **Last updated:** 2025-09-12
- **First published:** 2025-09-09
- **Size:** 14 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/user-javascript-and-css-kl/)
- **Website:** [https://98win68.bet/](https://98win68.bet/)

## Description

Inject your own custom JavaScript and CSS into any website.

## Rankings

- #10,811 — Overall
- #12 — javascript
- #46 — script
- #53 — inject

## Permissions and access

### Permissions

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

### Content script matches

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** Moderate 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 website URL may be invalid

> 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/user-javascript-and-css-kl)