# Ace Script

> User Script Manager with the support of Ace Stream technologies

Canonical page: [https://chrome-stats.com/d/ace-script?hl=ja](https://chrome-stats.com/d/ace-script?hl=ja)

## Overview

- **ID:** `ace-script`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Ace Stream
- **Category:** web-development,appearance,other
- **Daily users:** 1,075
- **Weekly downloads:** 30
- **Rating:** 3.75 / 5 (67 ratings)
- **Version:** 1.2.1
- **Last updated:** 2023-09-13
- **First published:** 2015-10-20
- **Size:** 532 KB
- **Data as of:** 2026-09-06
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/ace-script/)
- **Website:** [http://acescript.acestream.me/](http://acescript.acestream.me/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/ace-script/privacy/](https://addons.mozilla.org/firefox/addon/ace-script/privacy/)

## Description

Ace Script is a versatile user script manager that enables you to customize the way web pages display and behave, similar to Greasemonkey. It supports userscripts compatible with Greasemonkey and Tampermonkey, and uniquely integrates Ace Stream technology for advanced functionality.

With Ace Script, you can create and run your own scripts or utilize pre-existing ones available from popular script repositories like awe.acestream.me, openuserjs.org, and greasyfork.org. This extension operates without ads and only applies modifications to websites through scripts you install and trust, ensuring a safe and personalized browsing experience.

Explore Ace Script to enhance your favorite websites by seamlessly integrating Ace Stream features, giving you enhanced control and utility.

## Rankings

- #3,189 — Overall
- #349 — Web Development
- #4 — script
- #101 — scrape
- #115 — technology
- #172 — stream

## Permissions and access

### Permissions

- `tabs`
- `<all_urls>`
- `webRequest`
- `webRequestBlocking`
- `notifications`
- `storage`
- `unlimitedStorage`
- `clipboardWrite`
- `contextMenus`
- `nativeMessaging`
- `cookies`

### Content script matches

- `<all_urls>`

## Safety

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

The user reviews for the Firefox add-on 'Ace Script' are largely repetitive or unrelated to the add-on's functions, providing minimal information. The majority of comments simply state 'Ace Script de Ace Stream' without further detail, and other entries appear unrelated to the add-on. Due to the lack of substantive or repeated feedback, no clear pros or cons can be identified from the reviews provided.

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Source: [Chrome-Stats](https://chrome-stats.com/d/ace-script?hl=ja)