NoEval - Disable Eval()

Name: NoEval - Disable Eval()
Rating: 3 (4 reviews)
Author: keller

By: keller

Disable window.eval() in all websites and improve your online security!

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Install

Features & Capabilities

NoEval add-on disables window.eval() function on all webpages. Moreover, it also disables similar approached to eval() when the input argument's type is String:

eval('')
(new Function(''))()
window.setTimeout('', delay)
window.setInterval('', delay)

When eval or similar methods are used in websites, users might be at risk in terms of security. Please visit the below page to get more info about eval and why it is a dangerous function: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/eval#Never_use_eval!

If you found a bug, or have a feature request in mind, please fill the bug report form in the add-on's homepage.

User Growth & Download Statistics

Add-on

By:

keller

Daily users:

Rating:

3.00

(4)

Version:

0.1.8 Last updated: 2026-01-05

Version code:

6113336

Creation date:

2020-03-11

Risk:

Permissions:

Host permissions:

*://*/*

Size:

67.45KB

Email:

ho*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-18

Compare stats and ranking:

Ranking

# 70,326 ▼ 336

Other rankings

#112 in disable keyword 25 ▼ 1

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

keller

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/noeval-disable-eval/

Email:

ho*****@gmail.com

Website:

https://mybrowseraddon.com/noeval.html

Permission Change History

2025-03-02: Version 0.1.2 → 0.1.7

Add Host permissions: *://*/*

Add Permissions: scripting

User Reviews

Absolute crap, malicious extension, brakes all websites. Brakes youtube. Can't be used.

by Se*****, 2024-12-06

Works against certain anti-anti-debuggers

by bl*****, 2022-01-17

View all user reviews ›

Is NoEval - Disable Eval() Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

NoEval - Disable Eval() requires a few sensitive permissions. Exercise caution before installing.

Risk impact analysis details

Critical Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

NoEval - Disable Eval() may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** *** **** *******
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