JavaScript Blocker

Name: JavaScript Blocker
Author: Burak Unver

This extension lets you block specific JavaScript files across all websites to keep your browsing environment clean and predictable ⚙️

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Features & Capabilities

This extension lets you block specific JavaScript files across all websites to keep your browsing environment clean and predictable ⚙️

You can add any script URL you want to block, such as example.com/min.js. The extension stores these entries locally and uses the Declarative Net Request API to prevent matching scripts from loading on any site. This helps you avoid unwanted libraries, trackers, analytics scripts, or any external JavaScript you prefer not to run 🛡️

Your list is fully under your control. You can add or remove URLs, temporarily enable or disable individual rules, or toggle the entire extension on or off at any time. You can also export your rule list or import one with a single click, which makes backup and sharing simple 📦

No data is collected, and all configuration stays on your device. Free and open source, ideal for users who want more control without relying on predefined blocklists.

User Growth & Download Statistics

Add-on

By:

Burak Unver

Daily users:

31 1

Version:

2.3.0 Last updated: 2026-02-18

Version code:

6154222

Creation date:

2025-11-16

Risk:

Permissions:

Size:

92.36KB

Email:

br*****@gmail.com

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-15

Compare stats and ranking:

Ranking

# 19,491 ▲ 170

Other rankings

#19 in javascript keyword 45 #57 in script keyword 28 ▲ 1#72 in environment keyword 16 #240 in scrape keyword 54 ▲ 3

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:

Burak Unver

Firefox Add-ons Store

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

Email:

br*****@gmail.com

Website:

https://kunver.dev

Permission Change History

2025-11-20: Version 1.3.0 → 2.0.0

Add Permissions: webNavigation

Is JavaScript Blocker 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 Blocker 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.
High ****** ********* ** * ****** ******** ******** ********** * ******* ******* *****

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 Blocker is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

Risk likelihood analysis details

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