# Custom CSS/JS Injector

> Inject custom CSS and JavaScript into the current webpage.

Canonical page: [https://chrome-stats.com/d/custom-css-js-injector](https://chrome-stats.com/d/custom-css-js-injector)

## Overview

- **ID:** `custom-css-js-injector`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Cổng sắt CNC
- **Category:** other
- **Daily users:** 3
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0
- **Last updated:** 2025-02-07
- **First published:** 2025-02-07
- **Size:** 12 KB
- **Data as of:** 2026-09-05
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/custom-css-js-injector/)

## Description

Inject custom CSS and JavaScript into the current webpage.

## Rankings

- #53,613 — Overall
- #41 — inject
- #201 — javascript
- #206 — custom feed
- #207 — custom font

## Permissions and access

### Permissions

- `activeTab`
- `storage`

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Low risk likelihood

### Analysis details

- 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/custom-css-js-injector)