JavaScript Toggle On and Off (WebExtension)

Toggle JavaScript engine on and off the easy way
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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.

Manifest V2 Developer Tools Productivity Privacy & Security
By:
tlintspr
Daily users:
12,896+ 6
Rating:
4.08
(122)
Version:
0.2.4 Last updated: 2020-11-30
Version code:
5142464
Creation date:
2017-01-10
Risk:
High risk impact Low risk likelihood
Permissions:
  • storage
  • tabs
  • contextMenus
  • <all_urls>
  • webRequest
  • webRequestBlocking
  • notifications
Size:
70.69K
URLs:
Website
Full description:
See detailed description ⏷
Source:
Firefox Browser Add-ons
Updated:
14 hours ago

Ranking

# 662
Other rankings
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Other platforms

JavaScript Toggle On and Off (v0.3.4)
10,000+ 4.59 (22)
JavaScript Toggle On and Off (v0.3.4)
11,381+ 4.50 (11)

User reviews

Users appreciate this Firefox add-on for its simplicity, quick toggle feature, and the essential JavaScript control it brings to the browser. The automatic page reload and clear icon contribute to a positive experience. However, the add-on only blocks external scripts rather than disabling all JavaScript, and it primarily operates globally instead of on a per-site basis. Users express interest in improved per-site controls and easier management of white and blacklists.
Pros
  • Very easy and quick to use for toggling JavaScript on and off.
  • Provides a much-needed toggle control for JavaScript in Firefox, enhancing browsing experience.
  • Has a simple and clear icon, making it user-friendly.
  • Automatically reloads the page upon toggling JavaScript, improving convenience.
  • Allows pinning the toggle button to the toolbar for easy access.
Cons
  • Only blocks external scripts and does not completely disable all JavaScript, limiting full functionality.
  • The toggle disables JavaScript globally rather than per-site by default, reducing granular control.
  • Some users desire better site-specific whitelist/blacklist management and quicker shortcuts for toggling on a per-site basis.
Recent reviews
by John Zi, 2025-04-24
by 退出中共邪教党团队避疫, 2025-03-27
by Firefox user 18827259, 2025-02-25
View all user reviews ›

Extension safety

Risk impact

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

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.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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Upgrade to see full risk analysis details

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