JavaScript Toggle On and Off (WebExtension)

Name: JavaScript Toggle On and Off (WebExtension)
Rating: 4.064 (125 reviews)
Author: tlintspr

By: tlintspr

Toggle JavaScript engine on and off the easy way

JavaScript Toggle On and Off (WebExtension)

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Features & Capabilities

The JavaScript Toggle On and Off Chrome extension offers a reliable and straightforward way to control JavaScript execution in your browser. It allows you to toggle the JavaScript engine on or off with a simple toolbar button or hotkey (default: Alt + Shift + L), providing fine-grained control over script execution.

This extension supports whitelisting domains, enabling selective JavaScript activation for trusted sites. It covers multiple JavaScript types including inline scripts, data URI scripts, external scripts, inline event handlers, "javascript:" URIs, setTimeout evaluations, and document.write executions. Designed as a WebExtension, it functions well in both normal and private browsing modes. For more information, bug reports, and testing your browser's JavaScript support, users are directed to the extension's official website and GitHub repository.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Daily users:

Rating:

Version:

0.2.4 Last updated: 2020-11-30

Version code:

5142464

Creation date:

2017-01-10

Risk:

Permissions:

Size:

69.03KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 667 ▲ 2

Other rankings

#55 in Web Development

#94 in Other extensions

#147 in Privacy & Security ▲ 2

#2 in toggle keyword 29

#6 in javascript keyword 45

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Other platforms

JavaScript Toggle On and Off (v0.3.5)

10,000 4.41

(22)

JavaScript Toggle On and Off (v0.3.5)

14,084 4.50

(11)

For Developers

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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:

tlintspr

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/javascript-toggler/

Website:

http://add0n.com/javascript-toggler.html

User Reviews

Users praise the add‑on for its simplicity, quick one‑click toggle and handy toolbar button; many say it reliably works. Recurring issues include limitations in how JS is blocked (external-only or global toggling vs fine‑grained per‑site control), user confusion between Java and JavaScript, and several spammy/irrelevant reviews.

Pros

Simple, easy-to-use one-click JavaScript on/off toggle — fast to switch.
Toolbar icon/button for quick access (users recommend pinning it to the toolbar).
Reliable — multiple reviewers say it “just works” or call it an essential tool.

Cons

Limitations in how JavaScript is handled: reviewers report it may only block external scripts and/or acts as a global toggle rather than providing convenient per-site control.
Several reviewers confuse Java with JavaScript, leading to misleading comments or expectations about what the add-on does.
Many reviews are non-informative or appear spammy/repetitive (promotional messages), which reduces clarity of user feedback.

Recent reviews

by Mo*****, 2026-05-25

by Fi*****, 2025-09-27

by Fi*****, 2025-06-30

View all user reviews ›

Is JavaScript Toggle On and Off (WebExtension) 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.

JavaScript Toggle On and Off (WebExtension) requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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.

JavaScript Toggle On and Off (WebExtension) has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

Medium This extension has medium user count. Unpopular extensions may not be stable or safe.
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