CSP Evaluator

Name: CSP Evaluator
Rating: 4 (1 reviews)
Author: Hacks and Hops

CSP Evaluator is a tool that allows developers to check if a Content Security Policy (CSP) serves as mitigation against XSS attacks. This is a Firefox port of the Chrome extension

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Features & Capabilities

CSP Evaluator is a Firefox extension ported from the popular Chrome extension that assists developers in assessing Content Security Policy effectiveness against Cross-Site Scripting (XSS) attacks. Built upon the core CSP Evaluator library originally created by Lukas Weichselbaum, this tool enables quick and simple evaluation of CSP configurations to enhance web security. The extension is fully open-source with code available on GitHub, encouraging contributions and issue reporting via the repository. CSP Evaluator is an essential utility for web developers aiming to safeguard their sites by validating CSP implementations efficiently.

User Growth & Download Statistics

Add-on Developer Tools Privacy & Security

By:

Daily users:

Rating:

Version:

0.3.3 Last updated: 2024-12-19

Version code:

5863051

Creation date:

2024-12-18

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

304.48KB

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-17

Compare stats and ranking:

Ranking

# 5,746 ▼ 4

Other rankings

#6 in value keyword 23 #76 in policy keyword 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:

Hacks and Hops

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/csp-evaluator/

Website:

https://github.com/ACK-J/CSP-Evaluator-Firefox

Is CSP Evaluator 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.

CSP Evaluator 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.

CSP Evaluator 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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