Javascript Firewall

Name: Javascript Firewall
Rating: 4.375 (16 reviews)
Author: Bill

By: Bill Add-on

Block JavaScript of unwanted origin.

Overview

Firefox Add-ons Store

Daily users

6 ▲ 2

Data as of 2026-08-15

Rating:

4.38

(16)

Version:

1.4

Last updated: 2022-05-10

Features & Capabilities

JavaScript Firewall is a Firefox add-on that enables advanced users to block JavaScript from unwanted origins. It provides a user-friendly interface to configure rules for allowing or blocking JavaScript code, data requests, and external content on specific websites. The add-on allows users to create domain-specific rules and provides options for managing settings and rules. With JavaScript Firewall, users can enhance their web browsing security and control the execution of JavaScript on different websites.

User Growth & Download Statistics

Add-on

By:

Bill

Daily users:

6 2

Rating:

4.38

(16)

Version:

1.4 Last updated: 2022-05-10

Version code:

5402699

Creation date:

2019-09-30

Risk:

Permissions:

Size:

17.15KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-08-15

Compare stats and ranking:

Ranking

# 38,543 ▲ 6,041

Other rankings

#26 in javascript keyword 41 ▲ 1#166 in script keyword 23 ▲ 25

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:

Bill

Firefox Add-ons Store

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

Website:

https://github.com/billdoor1/javascript_firewall/issues

User Reviews

Very nice tool against trackers and attackers. It also really highlights how much websites try to get away with in the background.

by hj*****, 2026-03-03

by 远离*****, 2025-04-15

View all user reviews ›

Is Javascript Firewall 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 Firewall requires some sensitive permissions that could impact your browser and data security. 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.
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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 Firewall has earned a fairly good reputation and likely can be trusted.

Risk likelihood analysis details

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