---
title: "WebBrain – Chrome extension stats, history and permissions"
description: "2,000 users, rated 4.17 by 18 people. Version 36.1.0, updated 2026-09-15. Requests 23 permissions."
url: "https://extensiontracker.com/extension/ljhijonmfahplgbbacgcfnaihbjljhhb"
---

# WebBrain

Live in the Chrome Web Store.

- Users: 2,000
- Rating: 4.17 from 18 ratings
- Last checked: 2026-09-28 06:04 UTC
- Users gained in 7 days: – (needs a week of history)
- Users gained in 30 days: – (needs a month of history)
- Rank by users: #14,553 of 264,703 live extensions
- Rank in Tools: #3,608 of 103,498

## The listing

What the Chrome Web Store shows, as of the last check.

Summary from the listing:

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

- Extension ID: `ljhijonmfahplgbbacgcfnaihbjljhhb`
- Developer: [WebBrain](https://extensiontracker.com/developer/ue2197e01350ebf0de43cb5c6d19fb92e)
- Trader status: Not declared a trader under EU law
- Category: [Productivity › Tools](https://extensiontracker.com/category/productivity/tools)
- First published: 2026-04-14
- Last updated: 2026-09-15
- Version: `36.1.0`
- Size: 14.11 MiB
- Minimum Chrome: 88
- Languages (1): English (United States)
- Website: `webbrain.one`
- Support page: `https://github.com/webbrain-one/webbrain/issues`
- Chrome Web Store: <https://chromewebstore.google.com/detail/webbrain/ljhijonmfahplgbbacgcfnaihbjljhhb>
- View the code or download the CRX, in CRX Viewer: <https://robwu.nl/crxviewer/?crx=https%3A%2F%2Fchromewebstore.google.com%2Fdetail%2Fljhijonmfahplgbbacgcfnaihbjljhhb>

## Users over time

One row per check, newest first, as shown on the Chrome Web Store.

| Checked | Users | Rating | Ratings |
| --- | ---: | ---: | ---: |
| 2026-09-28 | 2,000 | 4.17 | 18 |
| 2026-09-27 | 2,000 | 4.17 | 18 |

## What changed

Every change found on a check, newest first.

No changes found since tracking began on 2026-09-27.

## What it can access

From the extension's manifest, in plain language.

**Every website:** it can read and change your data on all the sites you visit.

### Sites

- `<all_urls>`: Every website
- `http://*/*`: Every website
- `http://127.0.0.1/*`: 127.0.0.1
- `http://localhost/*`: localhost

### Sites where it runs scripts

- `*://*.facebook.com/*`: facebook.com and its subdomains
- `*://*.instagram.com/*`: instagram.com and its subdomains
- `*://*.linkedin.com/*`: linkedin.com and its subdomains
- `*://*.reddit.com/*`: reddit.com and its subdomains
- `*://*.twitter.com/*`: twitter.com and its subdomains
- `*://*.x.com/*`: x.com and its subdomains
- `*://*.youtube.com/*`: youtube.com and its subdomains
- `*://youtu.be/*`: youtu.be
- `<all_urls>`: Every website

### Browser features

- `activeTab`: The tab you're on, only after you click the extension
- `alarms`: Run tasks on a schedule
- `clipboardRead`: Read what you copy
- `clipboardWrite`: Change what's in your clipboard
- `contextMenus`: Add items to the right-click menu
- `debugger`: Use Chrome's debugger on your tabs, which gives full control of their pages
- `downloads`: Manage your downloads
- `notifications`: Show notifications
- `offscreen`: Open a hidden page for background work
- `privateNetworkAccess`
- `scripting`: Run scripts on sites it can reach
- `sidePanel`: Show a side panel
- `storage`: Save settings and data in your browser
- `tabCapture`: Capture video and sound from tabs
- `tabGroups`: Manage your tab groups
- `tabs`: Read the addresses and titles of your tabs
- `unlimitedStorage`: Store more data than the usual limit
- `webNavigation`: Follow your browsing, page by page
- `webRequest`: Watch network requests on the sites it can reach

## About this data

Collected from the extension's public Chrome Web Store listing. It's checked every week, because it has 1,000 or more users, and again whenever a new version appears. Last checked 2026-09-28 06:04 UTC; next check around 2026-10-05.

How the data is collected: <https://extensiontracker.com/methodology>.

## Cite this page

Extension Tracker. “WebBrain” (ljhijonmfahplgbbacgcfnaihbjljhhb). Chrome Web Store data, last checked 2026-09-28. https://extensiontracker.com/extension/ljhijonmfahplgbbacgcfnaihbjljhhb. Accessed 2026-09-28.

```bibtex
@misc{extensiontracker_ljhijonmfahplgbbacgcfnaihbjljhhb,
  title   = {WebBrain (ljhijonmfahplgbbacgcfnaihbjljhhb)},
  author  = {{Extension Tracker}},
  year    = {2026},
  note    = {Chrome Web Store data, last checked 2026-09-28},
  url     = {https://extensiontracker.com/extension/ljhijonmfahplgbbacgcfnaihbjljhhb},
  urldate = {2026-09-28}
}
```

---

From Extension Tracker, a public record of the Chrome Web Store: <https://extensiontracker.com/extension/ljhijonmfahplgbbacgcfnaihbjljhhb>. It isn't affiliated with Google. The data is free to reuse under CC BY 4.0 (<https://creativecommons.org/licenses/by/4.0/>), crediting Extension Tracker. Extension, developer and list pages come as Markdown too: add `format=md` to the address, as in `https://extensiontracker.com/extension/{id}?format=md`.