WebBrain

Name: WebBrain
Rating: 5 (3 reviews)
Author: Emre Sokullu

By: Emre Sokullu Add-on

Open-source AI browser agent — chat with pages, automate tasks, multi-provider LLM support.

Overview

Firefox Add-ons Store

Daily users

124 ▲ 13

Data as of 2026-09-10

Rating:

5.00

(3)

Version:

36.0.4

Last updated: 2026-09-10

Features & Capabilities

WebBrain is a free, open-source AI browser agent for understanding web pages, extracting structured data, and automating browser tasks. Ask questions about the current page in read-only Ask Mode, or let Act Mode click, type, scroll, navigate, and interact with websites. WebBrain supports local models through LM Studio, Ollama, and llama.cpp, as well as OpenAI, Claude, Gemini, OpenRouter, and other providers.

With optional Apocalypse Mode, WebBrain can continue working offline using on-device text and vision models, searchable Wikipedia archives, emergency reference PDFs, and multilingual communication tools. Smart context management helps avoid token limits, while local processing keeps sensitive data on your device. Archives display their size, source, and license before download. WebBrain is MIT-licensed and developed by Emre Sokullu.

User Growth & Download Statistics

Add-on AI Developer Tools Privacy & Security Programming Education

By:

Daily users:

Rating:

Version:

36.0.4 Last updated: 2026-09-10

Version code:

6474675

Creation date:

2026-04-06

Firefox add-on GUID:

webbrain@esokullu.com

Firefox add-on numeric ID:

2998467

Weekly download count:

Firefox on Android:

Risk:

Permissions:

Content scripts matches:

<all_urls>
*.facebook.com
*.instagram.com
*.x.com
*.twitter.com
*.linkedin.com
*.reddit.com
*.youtube.com
youtu.be

Size:

13.81MB

Email:

em*****@webbrain.one

URLs:

Website ,Privacy policy

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-09-10

Compare stats and ranking:

Ranking

# 10,466 ▲ 500

Other rankings

#126 in tasks keyword 39 ▲ 3

#161 in agent keyword 63 ▲ 2

#175 in component keyword 15 ▲ 1

#177 in answer keyword 20

#211 in web3 keyword 24 ▲ 10

Upgrade to see more rankings

Other platforms

WebBrain (v34.1.0)

1,000 4.00

(15)

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:

Emre Sokullu

Firefox Add-ons Store

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

Email:

em*****@webbrain.one

Website:

https://webbrain.one

Publisher Change History

2026-05-22: es*****@gmail.com to em*****@webbrain.one

Upgrade to see full email

Permission Change History

2026-08-24: Version 33.0.8 → 33.1.7

Add Permissions: notifications

2026-07-03: Version 17.7.1 → 20.1.1

Add Permissions: webRequest

2026-06-24: Version 14.0.2 → 17.1.1

Add Permissions: menus webNavigation alarms

2026-05-31: Version 8.8.0 → 11.0.1

Add Permissions: downloads

2026-05-27: Version 7.3.2 → 8.1.6

Add Permissions: clipboardWrite clipboardRead

User Reviews

by Fi*****, 2026-08-08

Крайне просто настраивается, подключил бесплатные API gemini-3.1-Flash-lite через гугл студию. Поддерживаются Локальные модели и OpenRouter. У роутера на момент написания, лучше бесплатное предложение - Ling-3.0-flash (free) Можно подключить локалку, но это скорее для приватности, облачные модели дают отличную производительность.

by Pu*****, 2026-07-25

View all user reviews ›

Is WebBrain 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.

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

Risk impact analysis details

Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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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.

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

Risk likelihood analysis details

High This extension was recently updated in the past month. New updates may not be stable or safe.
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