Ace Script icon

Ace Script Chrome Extension Analysis

Developer & Designer Tools

Chrome extension ID: mjbepbhonbojpoaenhckjocchgfiaofo

Ace Script is a browser extension that enables the execution of userscripts on WebExtensions-supported browsers. It allows for the automatic updating of scripts, ordered execution, and supports import/export via zip files.

Developer:Ace Stream
Version:1.2.6
Size:4.49MiB
Last updated:

Overview

Installs

1.0M+

Rating

3.4

733 reviews

Languages

7 locales

Includes Deutsch, English, Tiếng Việt, русский...

Market analysis

Review-backed positioning, friction, and market signals for this Chrome extension.

Backed by review samples

Macro category

Developer & Designer Tools

Pricing friction

Low review signal

Complaint intensity

High review signal

Listing & review signals
Observed signals from store listing text and review samples.

Listing positioning

The product positions itself as a comprehensive userscript manager that expands browser capabilities. It highlights compatibility with popular script formats like Greasemonkey and Tampermonkey, as well as a specialized integration with Ace Stream software.

Inferred product pattern

A utility tool for userscripts that appears to be monetized via intrusive ad-injection and affiliate redirection.

Review-backed pain points

Users report severe issues including the forced opening of advertising tabs (casinos, social media groups), redirects to affiliate links during shopping, and browser lag. There are also reports of security warnings regarding compromised data and conflicts with Content-Security-Policy headers of other extensions.

Observed feature gaps

Users indicate a lack of control over script execution and a failure of the 'don't show again' functionality for internal notifications.

Tags
Userscript ManagerBrowser AutomationAce Stream IntegrationCustom Scripts
Target users

- Advanced browser users

- Ace Stream software users

- Userscript developers

Primary use cases

- Running custom JavaScript scripts to modify web pages

- Integrating Ace Stream software functionality into the browser

- Managing Greasemonkey and Tampermonkey compatible scripts

Positive themes

- Review-backed positive data is not available

Negative themes

- Intrusive adware and unauthorized redirects

- Security vulnerabilities and malware accusations

- Plagiarism of other extensions

- System performance degradation

- Conflicts with other browser extensions

Observed friction

- Performance complaints detected

- Privacy complaints detected

- No pricing friction observed as the extension is presented as free.

Evidence boundary: Analysis based on the official store listing and ten highly critical, helpful reviews focusing on security and performance. The review sample consists entirely of 1-star ratings, providing no positive counter-evidence for the product's current state.
Complaint summaries
Review-backed complaint signals grouped by operational area.

Support

No direct support interaction complaints, but general dissatisfaction with the developer's ethics regarding cloning other software.

Reliability

Reports of system slowness, browser lag, and technical conflicts with other extensions' response headers.

Privacy

Serious allegations of the extension acting as malware/adware, injecting unauthorized scripts, and redirecting users to third-party affiliate sites for profit.

Access & pricing

- No clear monetization signal

- No account requirement observed

- Free plan or free usage claimed

Store listing facts

Listing assets

- Screenshots: 2

- Videos: 0

- Languages: 7

Trust signals

- Privacy policy

- Developer contact

- Official website

Store metadata

- Version: 1.2.6

- Size: 4.49MiB

- Last updated:

Store description excerpt
Short excerpt from the public Chrome Web Store listing; full copy is available on the official store page.
Provide userscript support for browsers. Ace Script provides userscripts support for browsers. It works on browsers with WebExtensions support. It supports most scripts for Greasemonkey and Tampermonkey, and also allows you to create scripts with the ability to easily integrate the functionality of the Ace Stream software (www.acestream.org). Features: - Update automatically according to the meta data. - Scripts will be executed in order as shown in the list. - GM functions are supported. - Support import from and export to a zip file. - Support integration with Ace Stream software Privacy policy: https://acescript.acestream.me/privacy/

Listing SEO keywords

Search intent keywords
Keyword signals for evaluating how users may discover, compare, or search for this extension category.

Core discovery

userscript managerbrowser automationAce Stream extensionGreasemonkey supportTampermonkey scripts

Comparison

Ace Script vs TampermonkeyAce Script vs ViolentmonkeyAce Script vs ScriptCat

Problem

how to run userscripts chromebrowser redirecting to adsAce Stream browser integration

Alternative

Tampermonkey alternativeViolentmonkey alternativeScriptCat alternative

Similar extensions

Jump to related discovery paths:

FAQ

What is Ace Script mainly used for?
Ace Script is a browser extension that enables the execution of userscripts on WebExtensions-supported browsers. It allows for the automatic updating of scripts, ordered execution, and supports import/export via zip files.
What market signals stand out?
Large installed base with moderate review base. Last known update: 08/19/2025.
What should builders compare before entering this space?
Compare install concentration, rating quality, update recency, screenshots, developer portfolio, listing claims, and review-backed friction signals.
Is this page review-backed?
Backed by review samples. This page combines store metadata with selected review signals, while raw store metrics remain visible for comparison.

Screenshots

Ace Script screenshot
Ace Script screenshot

Links

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