ContextHound

Name: ContextHound
Author: IulianVOStrut

By: IulianVOStrut

Real-time prompt injection scanner. Detect injection attacks before they reach your AI model.

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Features & Capabilities

ContextHound scans text you type into AI tools for prompt injection attacks - attempts by malicious content to hijack, manipulate, or jailbreak the AI model you are using.

Scan pill A lightweight indicator appears next to any AI chat input on any website. As you type, ContextHound analyses the text against 70+ detection rules covering jailbreaks, role-hijack instructions, indirect injection, data exfiltration attempts, system-prompt overrides, and more. A risk score and plain-English explanation appear instantly.

DevTools panel Open the browser DevTools and select the ContextHound tab to monitor live LLM API traffic. The panel intercepts and scans requests to OpenAI, Anthropic, Google Gemini, Mistral, Groq, Cohere, DeepSeek, and others.

Popup scanner Click the toolbar icon to paste and scan any text manually before sharing it with a model.

Privacy Everything runs entirely in your browser. No text, prompt content, scan results, or metadata is collected, stored externally, or transmitted anywhere. The extension has no backend server. Full source code is available on GitHub.

User Growth & Download Statistics

Add-on

By:

IulianVOStrut

Daily users:

Version:

1.9.0 Last updated: 2026-03-18

Version code:

6182850

Creation date:

2026-03-15

Risk:

Permissions:

Host permissions:

<all_urls>

Content scripts matches:

<all_urls>

Size:

100.18KB

Email:

co*****@contexthound.com

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-06-21

Compare stats and ranking:

Ranking

# 139,053 ▲ 2,527

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:

IulianVOStrut

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/contexthound/

Email:

co*****@contexthound.com

Website:

https://contexthound.com/privacy

Is ContextHound 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.

ContextHound 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.

ContextHound may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

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