WebBrain Firefox

WebBrain

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

WebBrain is a free, open-source browser extension that brings AI agent capabilities to Chrome and Firefox. Read pages, extract data, and automate web tasks — powered by your choice of LLM. The self-hostable alternative to proprietary browser AI plugins.

Key Features:

  • Page Understanding: Reads and comprehends any web page — articles, docs, dashboards, forms
  • Full Browser Agent: Click, type, scroll, navigate, and interact with pages on your behalf
  • Data Extraction: Extract structured data from any page — tables, lists, links, forms
  • Multi-Provider LLM: Works with local llama.cpp, OpenAI, Anthropic Claude, and OpenRouter
  • Privacy First: Your data stays yours. Run with a local LLM for zero data leakage
  • Smart Context: Automatic context management prevents token overflow

LLM Providers Supported:

  • llama.cpp (Local)
  • OpenAI
  • Anthropic Claude
  • OpenRouter

Interaction Modes:

  • Ask Mode: Read-only questions about current page
  • Act Mode: Full agent with browser control for automation

License: MIT License Developer: Emre Sokullu GitHub: https://github.com/esokullu/webbrain

Categories: Productivity, Developer Tools, AI/Machine Learning

User Growth & Download Statistics

Manifest V2 Add-on
By:
Emre Sokullu
Daily users:
24 5
Rating:
5.00
(1)
Version:
11.0.1 Last updated: 2026-05-31
Version code:
6285572
Creation date:
2026-04-06
Risk:
Very high risk impact High risk likelihood
Permissions:
Content scripts matches:
  • <all_urls>
  • *.facebook.com
  • *.instagram.com
  • *.x.com
  • *.twitter.com
  • *.linkedin.com
  • *.reddit.com
  • *.youtube.com
  • youtu.be
Size:
1.54MB
Email:
em*****@webbrain.one
URLs:
Website ,Privacy policy
Full description:
See detailed description
Source:
Firefox Add-ons Store
Data ingested on:
2026-06-16
Compare stats and ranking:

Ranking

# 21,681 ▲ 2,229
Other rankings
#190 in tasks keyword 39 ▲ 21#209 in agent keyword 57 ▲ 13

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

2026-05-31: Version 8.8.0 → 11.0.1
Add Permissions: downloads
2026-05-27: Version 7.3.2 → 8.1.6
Add Permissions: clipboardWrite clipboardRead

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.
  • Critical ****** ****** ** *** ********* ****** * *********** ******** **** ** ** *** ******* *** ****** **** **** *** ******* *****
  • Critical ******* ****** ** *** ********* ******** ************* ************** ****** ************ ************* *********** ************ ********
  • High ******* ******* **** *** ****** ***** *** ***** ** ******* **** ********* ********* ** * *********** *****
  • High ****** ******* *** ********* ********* ******** ***** *** ** ********** ****** * ******** ******* *****
  • Medium ****** ********** ** ******** ********** *** ********* ******* ******** ****** ******** ****** ********
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 recently added, and hasn't been around long enough for us to gather enough data to accurately assess its risk level.

Risk likelihood analysis details
  • High This extension has recently changed publisher email (might be a transfer in ownership)
  • High **** ********* *** ******** ******* ** *** **** ****** *** ******* *** *** ** ****** ** *****
  • High **** ********* *** *** **** ****** ********* ********** *** *** ** ****** ** *****
  • Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****
  • Good **** ********* *** **** **** *******
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