OpenClaw plugin - Camofox Browser

The Camofox Browser OpenClaw plugin provides anti-detection browser automation tools that bypass bot detection on sites like Google, Amazon, and LinkedIn. The server auto-starts when the plugin loads and registers 10 browser automation tools for AI agents.

Installation

Install the plugin using the OpenClaw CLI:

openclaw plugins install @askjo/camofox-browser

The plugin downloads the Camoufox browser engine (~300MB) on first use.

Auto-start behavior

By default, the Camofox server automatically starts when OpenClaw loads the plugin. This means:

No manual server management required
Server launches in the background on port 9377
Health checks confirm server readiness before tool calls
Server persists across agent sessions

To disable auto-start, configure the plugin in openclaw.json:

{
  "plugins": {
    "entries": {
      "camofox-browser": {
        "enabled": true,
        "config": {
          "autoStart": false
        }
      }
    }
  }
}

With autoStart: false, you must manually start the server using CLI commands.

Available tools

The plugin registers 10 tools for browser automation. All tools use the camofox_ prefix to distinguish them from built-in browser tools.

camofox_create_tab

Create a new browser tab with anti-detection fingerprinting. Returns a tabId for subsequent operations. Parameters:

url (string, required) - Initial URL to navigate to

Example:

{
  "url": "https://www.google.com"
}

Returns: { "tabId": "abc123", "url": "...", "title": "..." }

camofox_snapshot

Get an accessibility snapshot of the page with element references (e1, e2, etc.) for interaction, plus an optional screenshot. Parameters:

tabId (string, required) - Tab identifier from create_tab
offset (number, optional) - Character offset for paginated snapshots. Use nextOffset from a previous truncated response to see more content.

Returns:

Accessibility tree with clickable element refs
Optional base64 PNG screenshot
Pagination info if content is truncated (hasMore, nextOffset)

Large pages: Snapshots exceeding token limits are automatically truncated. Check hasMore in the response and call again with the nextOffset value to retrieve additional content.

camofox_click

Click an element by reference from a snapshot or CSS selector. Parameters:

tabId (string, required) - Tab identifier
ref (string) - Element ref from snapshot (e.g., e1)
selector (string) - CSS selector (alternative to ref)

Example:

{
  "tabId": "abc123",
  "ref": "e1"
}

Provide either ref or selector, not both.

camofox_type

Type text into an input field or editable element. Parameters:

tabId (string, required) - Tab identifier
text (string, required) - Text to type
ref (string) - Element ref from snapshot
selector (string) - CSS selector (alternative to ref)
pressEnter (boolean) - Press Enter after typing

Example:

{
  "tabId": "abc123",
  "ref": "e2",
  "text": "search query",
  "pressEnter": true
}

camofox_navigate

Navigate to a URL or use a search macro like @google_search. Parameters:

tabId (string, required) - Tab identifier
url (string) - URL to navigate to
macro (string) - Search macro (e.g., @google_search)
query (string) - Search query when using a macro

Available macros:

@google_search
@youtube_search
@amazon_search
@reddit_search
@wikipedia_search
@twitter_search
@yelp_search
@spotify_search
@netflix_search
@linkedin_search
@instagram_search
@tiktok_search
@twitch_search

Example with macro:

{
  "tabId": "abc123",
  "macro": "@google_search",
  "query": "best coffee beans"
}

camofox_scroll

Scroll the page in a specified direction. Parameters:

tabId (string, required) - Tab identifier
direction (string, required) - One of: up, down, left, right
amount (number) - Pixels to scroll (optional)

camofox_screenshot

Take a full-page screenshot. Parameters:

tabId (string, required) - Tab identifier

Returns: Base64-encoded PNG image

camofox_close_tab

Close a browser tab and free resources. Parameters:

tabId (string, required) - Tab identifier

camofox_list_tabs

List all open tabs for the current user. Parameters: None Returns: Array of tab objects with tabId, url, title, and userId

camofox_import_cookies

Import cookies from a Netscape-format cookie file. Use this to authenticate to sites like LinkedIn without interactive login. Parameters:

cookiesPath (string, required) - Path to cookie file (relative to ~/.camofox/cookies/)
domainSuffix (string, optional) - Only import cookies matching this domain suffix

Setup required:

Generate API key

Cookie import requires authentication:

openssl rand -hex 32

Set environment variable

export CAMOFOX_API_KEY="your-generated-key"
openclaw start

The key is used by both the plugin (client) and server (validation).

Export cookies from browser

Use a browser extension like “cookies.txt” to export Netscape-format cookies.

Place cookie file

mkdir -p ~/.camofox/cookies
cp ~/Downloads/linkedin_cookies.txt ~/.camofox/cookies/linkedin.txt

Import via agent

Ask your agent:

Import my LinkedIn cookies from linkedin.txt

Cookie import is disabled by default. It only works when CAMOFOX_API_KEY is set. The server rejects all cookie requests with 403 if the key is missing.

Configuration options

Configure the plugin in openclaw.json:

{
  "plugins": {
    "entries": {
      "camofox-browser": {
        "enabled": true,
        "config": {
          "port": 9377,
          "autoStart": true,
          "maxSessions": 5,
          "maxTabsPerSession": 3,
          "sessionTimeoutMs": 600000,
          "browserIdleTimeoutMs": 300000,
          "maxOldSpaceSize": 128
        }
      }
    }
  }
}

Configuration reference

port

number

default:"9377"

Server port. Change if 9377 conflicts with another service.

autoStart

boolean

default:"true"

Auto-start server when plugin loads. Set to false for manual control.

maxSessions

number

default:"5"

Maximum concurrent browser sessions. Each user gets an isolated session with separate cookies and storage.

maxTabsPerSession

number

default:"3"

Maximum tabs per user session. Prevents resource exhaustion from runaway agents.

sessionTimeoutMs

number

default:"600000"

Session inactivity timeout in milliseconds. Sessions close after 10 minutes (600000ms) by default.

browserIdleTimeoutMs

number

default:"300000"

Kill the browser process after this many milliseconds with no active sessions. Set to 0 to keep the browser running indefinitely.

maxOldSpaceSize

number

default:"128"

Node.js V8 heap limit in megabytes. Increase if you see out-of-memory errors with many concurrent tabs.

Resource limits in context

The default limits are conservative for shared environments:

5 sessions = 5 simultaneous users/agents
3 tabs per session = 15 total tabs maximum
10 min session timeout = automatic cleanup of idle agents
5 min idle shutdown = browser stops when not in use, restarts on next request

For production workloads, increase limits based on available memory:

{
  "maxSessions": 20,
  "maxTabsPerSession": 5,
  "maxOldSpaceSize": 512
}

Health check registration

The plugin registers a health check for openclaw doctor and openclaw status:

openclaw doctor

Output:

✓ camofox-browser: Server running (camoufox)
  URL: http://localhost:9377
  Engine: camoufox
  Active tabs: 2
  Managed: true

Health check statuses:

ok - Server reachable and healthy
warn - Server starting or temporarily unavailable
error - Server not reachable (check if auto-start disabled)

CLI commands

The plugin adds the openclaw camofox command with subcommands:

openclaw camofox status

Show server status and active tabs:

openclaw camofox status

Output:

Camoufox server: ok
  URL: http://localhost:9377
  Engine: camoufox
  Active tabs: 2
  Managed: true

openclaw camofox start

Manually start the server:

openclaw camofox start

Only needed if autoStart: false in config.

openclaw camofox stop

Stop the managed server process:

openclaw camofox stop

This kills the server and closes all browser tabs. The server restarts automatically on the next tool call if autoStart: true.

openclaw camofox tabs

List all active browser tabs:

openclaw camofox tabs

Filter by user:

openclaw camofox tabs --user agent1

openclaw camofox configure

Display configuration help:

openclaw camofox configure

Shows current settings and example openclaw.json snippets.

Agent workflow example

Here’s a typical agent workflow using Camofox tools:

Create tab

Agent calls camofox_create_tab with a URL:

{
  "url": "https://www.google.com"
}

Receives tabId for subsequent operations.

Get snapshot

Agent calls camofox_snapshot to see the page content:

{
  "tabId": "abc123"
}

Receives accessibility tree with element refs:

[textbox e1] Search
[button e2] Google Search
[button e3] I'm Feeling Lucky

Interact with page

Agent types into search box and submits:

{
  "tabId": "abc123",
  "ref": "e1",
  "text": "best coffee beans",
  "pressEnter": true
}

Get updated snapshot

After navigation completes, agent calls camofox_snapshot again to see search results with new refs.

Extract information

Agent parses snapshot text to extract search results and clicks relevant links using new refs from the updated snapshot.

Clean up

Agent calls camofox_close_tab when done:

{
  "tabId": "abc123"
}

Troubleshooting

Plugin won’t start

Symptom: Health check shows “error” status

Check auto-start
Check logs
Verify installation

Verify autoStart is not disabled:

cat ~/.openclaw/openclaw.json | grep -A 5 camofox-browser

If autoStart: false, either change to true or manually start:

openclaw camofox start

View OpenClaw logs for error messages:

openclaw logs

Look for “Failed to auto-start server” or browser launch errors.

Confirm plugin is installed:

openclaw plugins list

Reinstall if missing:

openclaw plugins install @askjo/camofox-browser

Port conflicts

Symptom: “Address already in use” error on port 9377

Find conflicting process

lsof -i :9377

Kill the process or choose a different port.

Configure custom port

Update openclaw.json:

{
  "plugins": {
    "entries": {
      "camofox-browser": {
        "config": {
          "port": 9378
        }
      }
    }
  }
}

Restart OpenClaw

openclaw restart

Server unreachable during tool calls

Symptom: Tool calls fail with connection errors

The server may still be starting. Wait 15 seconds after OpenClaw launch before the first tool call.

Check manually:

openclaw camofox status

If status shows “not reachable”, try:

openclaw camofox stop
openclaw camofox start

Symptom: camofox_import_cookies fails with “Forbidden” Cause: CAMOFOX_API_KEY is not set. Solution:

export CAMOFOX_API_KEY="$(openssl rand -hex 32)"
openclaw restart

The API key must be set before starting OpenClaw. Add to your shell profile for persistence:

echo 'export CAMOFOX_API_KEY="your-key-here"' >> ~/.bashrc

Out of memory errors

Symptom: Server crashes with heap out of memory Solution: Increase Node.js heap limit:

{
  "plugins": {
    "entries": {
      "camofox-browser": {
        "config": {
          "maxOldSpaceSize": 512
        }
      }
    }
  }
}

Also reduce concurrent tabs:

{
  "maxSessions": 3,
  "maxTabsPerSession": 2
}

Disabling built-in browser tools

To use Camofox as the only browser tool in OpenClaw, disable the built-in browser:

{
  "tools": {
    "deny": ["browser"]
  },
  "plugins": {
    "entries": {
      "camofox-browser": {
        "enabled": true
      }
    }
  }
}

This removes OpenClaw’s built-in browser tool, leaving only the camofox_* tools. Useful when you need anti-detection for all browsing tasks.

Usage

​Installation

​Auto-start behavior

​Available tools

​camofox_create_tab

​camofox_snapshot

​camofox_click

​camofox_type

​camofox_navigate

​camofox_scroll

​camofox_screenshot

​camofox_close_tab

​camofox_list_tabs

​camofox_import_cookies

​Configuration options

​Configuration reference

​Resource limits in context

​Health check registration

​CLI commands

​openclaw camofox status

​openclaw camofox start

​openclaw camofox stop

​openclaw camofox tabs

​openclaw camofox configure

​Agent workflow example

​Troubleshooting

​Plugin won’t start

​Port conflicts

​Server unreachable during tool calls

​Cookie import returns 403

​Out of memory errors

​Disabling built-in browser tools

Installation

Auto-start behavior

Available tools

camofox_create_tab

camofox_snapshot

camofox_click

camofox_type

camofox_navigate

camofox_scroll

camofox_screenshot

camofox_close_tab

camofox_list_tabs

camofox_import_cookies

Configuration options

Configuration reference

Resource limits in context

Health check registration

CLI commands

openclaw camofox status

openclaw camofox start

openclaw camofox stop

openclaw camofox tabs

openclaw camofox configure

Agent workflow example

Troubleshooting

Plugin won’t start

Port conflicts

Server unreachable during tool calls

Cookie import returns 403

Out of memory errors

Disabling built-in browser tools