HalluCheck Firefox

HalluCheck

Cross-reference LLM-generated content with Wikipedia, Wikidata, and other trusted sources to detect potential AI hallucinations

Features & Capabilities

Your Truth Guardian for AI Content Fact-check AI claims instantly with a single click. Never be misled again.

In a world where AI can generate convincing but sometimes inaccurate information, HalluCheck stands guard between you and potential misinformation. This lightweight extension instantly verifies AI-generated content against trusted knowledge sources like Wikipedia, academic papers, and reference databases.

Simply highlight any text in AI chat responses, and HalluCheck works its magic: • Green highlights indicate verified facts • Yellow shows uncertain claims needing caution • Red flags potential misinformation

HalluCheck works entirely in your browser and respects your privacy with zero tracking. It doesn't require API keys or accounts—just install and start fact-checking immediately.

Perfect for students verifying research, professionals validating information, journalists checking facts, and anyone who values accuracy in the age of AI.

Don't just trust. Verify with HalluCheck—your essential companion for navigating the world of AI-generated content with confidence.

Supported LLM Interfaces This extension works with numerous AI chatbots and LLM interfaces including:

ChatGPT (OpenAI) Grok Claude (Anthropic) Google Gemini (formerly Bard) Microsoft Copilot (formerly Bing Chat) Perplexity AI & Perplexity Labs Alibaba Tongyi Qwen & Qwen Chat DeepSeek Yuanbao AI (Tencent) Doubao (ByteDance) Cici (ByteDance)

User Growth & Download Statistics

Manifest V2 Add-on
By:
EasyExplorar
Daily users:
1 -1
Version:
1.1.0 Last updated: 2025-04-26
Version code:
5935508
Creation date:
2025-04-23
Risk:
Very high risk impact Moderate risk likelihood
Permissions:
  • activeTab
  • storage
  • https://*.wikipedia.org/*
  • https://*.wikidata.org/*
  • https://kgsearch.googleapis.com/*
  • https://*.dbpedia.org/*
  • https://lookup.dbpedia.org/*
  • https://*.wikimedia.org/*
  • https://*.openlibrary.org/*
  • https://*.thesaurus.org/*
  • See more
Content scripts matches:
  • chat.openai.com
  • *.openai.com
  • grok.com
  • *.grok.com
  • grok.x.ai
  • *.x.ai
  • claude.ai
  • *.claude.ai
  • *.anthropic.com
  • gemini.google.com
  • See more
Size:
42.23KB
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-03
Compare stats and ranking:

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:
EasyExplorar
Firefox Add-ons Store
https://addons.mozilla.org/firefox/addon/hallucheck/
Website:
https://github.com/easyexplorar/HalluCheck

Is HalluCheck 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.

HalluCheck requires a lot of sensitive permissions. Exercise caution before installing.

Risk impact analysis details
  • Critical Request access to the following domains: wikipedia.org, wikidata.org, googleapis.com, dbpedia.org, wikimedia.org, openlibrary.org, thesaurus.org, wiktionary.org, merriam-webster.com, crossref.org, openai.com, grok.com, x.ai, claude.ai, anthropic.com, google.com, bing.com, perplexity.ai, aliyun.com, qwen.ai, deepseek.com, deepseek.ai, tencent.com, doubao.com, cici.com, bytedance.com
  • 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.

HalluCheck 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 **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
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