Camofox Cloaked Browser

Camofox Cloaked Browser

When to use

Use this skill only when the task needs Camofox/Camoufox specifically:

• user names Camofox, Camoufox, anti-detection browsing, cloaked browser, browser fingerprint spoofing, or stealth browsing
• a site is likely to block normal Playwright/Chrome automation
• the task needs stable accessibility refs from a Camofox browser server
• OpenClaw has the camofox-browser plugin/tools available

Do not use it for ordinary web search, simple page fetches, static text extraction, or normal browser automation. Use the cheaper default stack unless cloaking is actually load-bearing.

If the user names another browser target explicitly — Browserbase, Selkies, a tailnet browser, normal Hermes browser, Chrome DevTools, etc. — stop and use that target/skill instead. Do not silently route through Camofox.

Default target

Default local server:

http://127.0.0.1:9377

Equivalent localhost URL is usually fine:

http://localhost:9377

Prefer 127.0.0.1 in examples to avoid IPv6/localhost oddities.

There is no container target in this skill. Do not mention or rely on container names; this skill is about the npm server and OpenClaw plugin/API.

Operating model

Camofox Browser is a Node server and OpenClaw plugin wrapper around Camoufox, a Firefox-based anti-detection browser.

Primary local startup:

npx -y @askjo/camofox-browser
# serves http://127.0.0.1:9377 by default

Alternative cloned-repo startup:

git clone https://github.com/jo-inc/camofox-browser
cd camofox-browser
npm install
npm start

Alternative global install:

npm install -g @askjo/camofox-browser
camofox-browser

npm install / npx downloads the Camoufox browser binary on first run via the package postinstall unless CAMOUFOX_EXECUTABLE points to an existing compatible Camoufox bundle. Expect roughly a few hundred MB for the browser payload.

OpenClaw plugin mode

If OpenClaw has the upstream plugin installed, prefer the plugin tools over raw curl because they auto-manage userId from ctx.agentId, use sessionKey, and can auto-start the server.

Install shape:

openclaw plugins install @askjo/camofox-browser
# or whatever ClawHub install command the registry page currently shows

Useful OpenClaw CLI commands from the plugin:

openclaw camofox status
openclaw camofox start
openclaw camofox stop
openclaw camofox tabs
openclaw camofox configure

Plugin config shape shown by upstream:

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

The upstream plugin exposes these core tools:

• camofox_create_tab — create tab; returns tabId
• camofox_snapshot — accessibility snapshot with refs and screenshot; primary observation tool
• camofox_click — click by ref or CSS selector
• camofox_type — type by ref or selector; optional pressEnter
• camofox_navigate — navigate by URL or search macro
• camofox_scroll — scroll page
• camofox_screenshot — screenshot only
• camofox_close_tab — close a tab
• camofox_evaluate — execute JS; gated by server auth middleware
• camofox_list_tabs — list tabs for the current user
• camofox_import_cookies — import Netscape cookies; use CAMOFOX_API_KEY for this sensitive endpoint

Hard workflow rules

Always follow these rules when using Camofox:

1. Check /health before doing browser work. 2. Always send userId in raw REST calls. 3. Prefer sessionKey when creating tabs so task tabs group together. 4. Open or reuse a tab intentionally; do not spray new tabs. 5. Snapshot before selecting refs. 6. Re-snapshot after every state-changing action: click, type with submit, press, scroll, navigation, back, forward, refresh, JS evaluate that mutates state. 7. Element refs reset after navigation and may become stale after DOM changes. 8. Prefer refs from the latest snapshot over CSS selectors. Use selectors only when refs are unavailable or unstable. 9. Close tabs when done unless preserving the session is explicitly useful. 10. Do not claim Camofox is in use until both the server is healthy and the actual agent/client is pointed at it.

REST API quick commands

Set base variables:

BASE="${CAMOFOX_BASE_URL:-http://127.0.0.1:9377}"
USER_ID="${CAMOFOX_USER_ID:-agent1}"
SESSION_KEY="${CAMOFOX_SESSION_KEY:-task1}"

If CAMOFOX_ACCESS_KEY or CAMOFOX_API_KEY is set, include auth where required:

AUTH_HEADER=()
if [ -n "${CAMOFOX_ACCESS_KEY:-}" ]; then
  AUTH_HEADER=(-H "Authorization: Bearer ${CAMOFOX_ACCESS_KEY}")
elif [ -n "${CAMOFOX_API_KEY:-}" ]; then
  AUTH_HEADER=(-H "Authorization: Bearer ${CAMOFOX_API_KEY}")
fi

Health

curl -fsS "$BASE/health"

Create tab

TAB_ID="$(curl -fsS -X POST "$BASE/tabs" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"sessionKey\":\"$SESSION_KEY\",\"url\":\"https://example.com\"}" \
  | python3 -c 'import json,sys; print(json.load(sys.stdin)["tabId"])')"
printf 'TAB_ID=%s\n' "$TAB_ID"

Navigate

curl -fsS -X POST "$BASE/tabs/$TAB_ID/navigate" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"url\":\"https://example.com\"}"

Search macro example:

curl -fsS -X POST "$BASE/tabs/$TAB_ID/navigate" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"macro\":\"@google_search\",\"query\":\"site:example.com pricing\"}"

Known macros include:

• @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

Snapshot

curl -fsS "$BASE/tabs/$TAB_ID/snapshot?userId=$USER_ID"

With screenshot and pagination offset:

curl -fsS "$BASE/tabs/$TAB_ID/snapshot?userId=$USER_ID&includeScreenshot=true&offset=0"

Click

curl -fsS -X POST "$BASE/tabs/$TAB_ID/click" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"ref\":\"e1\"}"

Selector fallback:

curl -fsS -X POST "$BASE/tabs/$TAB_ID/click" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"selector\":\"button[type=submit]\"}"

Type

curl -fsS -X POST "$BASE/tabs/$TAB_ID/type" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"ref\":\"e2\",\"text\":\"hello world\"}"

Type and submit:

curl -fsS -X POST "$BASE/tabs/$TAB_ID/type" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"ref\":\"e2\",\"text\":\"query\",\"pressEnter\":true}"

Press key

curl -fsS -X POST "$BASE/tabs/$TAB_ID/press" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"key\":\"Enter\"}"

Wait

curl -fsS -X POST "$BASE/tabs/$TAB_ID/wait" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"timeout\":3000}"

Scroll

curl -fsS -X POST "$BASE/tabs/$TAB_ID/scroll" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"direction\":\"down\",\"amount\":700}"

Back / forward / refresh

curl -fsS -X POST "$BASE/tabs/$TAB_ID/back"    -H 'Content-Type: application/json' "${AUTH_HEADER[@]}" -d "{\"userId\":\"$USER_ID\"}"
curl -fsS -X POST "$BASE/tabs/$TAB_ID/forward" -H 'Content-Type: application/json' "${AUTH_HEADER[@]}" -d "{\"userId\":\"$USER_ID\"}"
curl -fsS -X POST "$BASE/tabs/$TAB_ID/refresh" -H 'Content-Type: application/json' "${AUTH_HEADER[@]}" -d "{\"userId\":\"$USER_ID\"}"

Links / images / screenshot

curl -fsS "$BASE/tabs/$TAB_ID/links?userId=$USER_ID&limit=50"
curl -fsS "$BASE/tabs/$TAB_ID/images?userId=$USER_ID&limit=50"
curl -fsS "$BASE/tabs/$TAB_ID/screenshot?userId=$USER_ID" --output screenshot.png

Evaluate JavaScript

This endpoint is auth-gated by the server middleware. Use only when needed.

curl -fsS -X POST "$BASE/tabs/$TAB_ID/evaluate" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"expression\":\"document.title\"}"

Structured extract

curl -fsS -X POST "$BASE/tabs/$TAB_ID/extract" \
  -H 'Content-Type: application/json' \
  "${AUTH_HEADER[@]}" \
  -d "{\"userId\":\"$USER_ID\",\"schema\":{\"type\":\"object\",\"properties\":{\"title\":{\"type\":\"string\"}}}}"

List and close tabs

curl -fsS "$BASE/tabs?userId=$USER_ID"
curl -fsS -X DELETE "$BASE/tabs/$TAB_ID?userId=$USER_ID" "${AUTH_HEADER[@]}"

Delete session data

This endpoint is auth-gated.

curl -fsS -X DELETE "$BASE/sessions/$USER_ID" "${AUTH_HEADER[@]}"

Environment variables

Server/client target

• CAMOFOX_PORT: server port; default 9377
• PORT: generic port fallback if CAMOFOX_PORT is unset
• CAMOFOX_BASE_URL: not an upstream server env var; useful shell convention for scripts in this skill
• CAMOFOX_URL: Hermes-specific browser-backend switch; do not set/export globally; see below

Auth and sensitive operations

• CAMOFOX_ACCESS_KEY: global bearer token for all routes except /health; use when anything can reach the server beyond loopback
• CAMOFOX_API_KEY: optional bearer token used only for sensitive endpoints such as cookie import/traces; not needed for normal browsing, snapshots, navigation, clicks, or typing
• CAMOFOX_ADMIN_KEY: protects /stop when configured

For local development with neither key set, upstream allows loopback requests in non-production mode. Do not expose that to a network. That would be the kind of convenience feature that becomes an incident report.

Storage / runtime tuning

• CAMOFOX_COOKIES_DIR: cookie import source directory; default ~/.camofox/cookies
• CAMOFOX_PROFILE_DIR: profile directory; default ~/.camofox/profiles
• CAMOFOX_TRACES_DIR: trace directory; default ~/.camofox/traces
• CAMOFOX_TRACES_MAX_BYTES: default 50MB
• CAMOFOX_TRACES_TTL_HOURS: default 24
• MAX_CONCURRENT_PER_USER: default 3
• MAX_SESSIONS: default 50
• MAX_TABS_PER_SESSION: default 10
• MAX_TABS_GLOBAL: default 50
• SESSION_TIMEOUT_MS: default 600000 in current code
• TAB_INACTIVITY_MS: default 300000
• BROWSER_IDLE_TIMEOUT_MS: default 300000
• NAVIGATE_TIMEOUT_MS: default 25000
• BUILDREFS_TIMEOUT_MS: default 12000
• NATIVE_MEM_RESTART_THRESHOLD_MB: default 300
• BROWSER_RSS_RESTART_THRESHOLD_MB: default 1500

Browser binary

• CAMOUFOX_EXECUTABLE: external Camoufox executable/bundle; skips bundled download when valid
• CAMOUFOX_EXECUTABLE_PATH: compatibility alias
• CAMOFOX_EXECUTABLE_PATH: legacy alias
• CAMOFOX_SKIP_DOWNLOAD=1|true: skip postinstall browser download; only use if an executable is provided another way

Proxy / GeoIP

• PROXY_STRATEGY
• PROXY_PROVIDER
• PROXY_HOST
• PROXY_PORT
• PROXY_PORTS
• PROXY_USERNAME
• PROXY_PASSWORD
• PROXY_BACKCONNECT_HOST
• PROXY_BACKCONNECT_PORT
• PROXY_COUNTRY
• PROXY_STATE
• PROXY_CITY
• PROXY_ZIP
• PROXY_SESSION_DURATION_MINUTES

Telemetry

Upstream crash/hang telemetry is enabled unless disabled:

CAMOFOX_CRASH_REPORT_ENABLED=false

Use that for privacy-conservative local runs unless the user wants upstream crash reporting.

Hermes-specific CAMOFOX_URL footgun

This section is load-bearing for Hermes agents. Read it before setting environment variables.

In Hermes, CAMOFOX_URL is not just a harmless client hint. It is a browser-backend switch. If CAMOFOX_URL is visible in the Hermes process environment, Hermes considers Camofox mode enabled for that process and normal Hermes browser calls can be forced through Camofox.

Hard rules for Hermes:

• Do not add CAMOFOX_URL to ~/.hermes/.env.
• Do not export CAMOFOX_URL in shell profiles such as ~/.zshrc, ~/.bashrc, launchd plists, Docker env, or service env.
• Do not put CAMOFOX_URL in the Hermes gateway environment unless the explicit intent is for the entire gateway process to use Camofox for browser calls.
• Do not use hermes config set ... CAMOFOX_URL ...; this is runtime state, not durable config.
• Use CAMOFOX_URL only as an inline, one-process env var for a dedicated cloaked Hermes run:

CAMOFOX_URL="http://127.0.0.1:9377" hermes chat -q 'Use cloaked Camofox browsing for this task: <task>'

• After removing an accidentally global CAMOFOX_URL, restart the affected Hermes CLI/gateway process; running processes keep their old environment.

Safer default for Hermes agents: run the Camofox server normally, store the stable server URL as skills.config.camofox.base_url or CAMOFOX_BASE_URL for REST examples, and do not set `CAMOFOX_URL` at all unless launching a dedicated cloaked Hermes process.

This routing claim is Hermes-specific. For OpenClaw, use the upstream plugin config/tools unless you have verified equivalent env semantics.

Verification checklist

Before claiming success:

1. Server health responds:

curl -fsS "${CAMOFOX_BASE_URL:-http://127.0.0.1:9377}/health"

2. OpenClaw plugin mode, if applicable:

openclaw camofox status

3. Raw REST mode: create a tab, snapshot it, close it.

4. Hermes mode: verify CAMOFOX_URL is absent from global Hermes env and present only on the dedicated cloaked Hermes process, if Hermes process routing is intentionally being used.

5. Cleanup: close tabs or stop the managed server if the task started it only for one job.

Common mistakes

• Using Camofox when normal search/extract tools are cheaper and sufficient.
• Forgetting userId in raw REST calls.
• Clicking stale refs after navigation or DOM changes.
• Setting/exporting CAMOFOX_URL globally in Hermes (~/.hermes/.env, gateway env, shell profile, service env) and accidentally routing all browser calls through Camofox.
• Assuming CAMOFOX_API_KEY is needed for normal browser work; it is only for sensitive endpoints such as cookie import/traces.
• Exposing a no-auth local development server beyond loopback.
• Treating MCP tool names from a separate MCP wrapper as if they are the upstream OpenClaw plugin tools. The MCP wrapper may expose many more tools; this skill is centered on upstream @askjo/camofox-browser plus its REST API.

Output format when using this skill

Report:

• runtime: OpenClaw plugin, raw REST, Hermes, or other
• base URL: server URL used
• startup: npx/package, cloned repo npm start, OpenClaw autoStart, or existing server
• auth: no auth/local loopback, CAMOFOX_ACCESS_KEY, or CAMOFOX_API_KEY for sensitive endpoints
• user/session: userId, sessionKey
• tab: tabId used/closed/preserved
• verification: health + snapshot/action result summary
• cleanup: tabs closed and whether server was left running

camofox-cloaked-browser

Agent skill for using Camofox/Camoufox as an opt-in anti-detection browser server when normal automation is likely to get blocked.

This skill is intentionally npm-first. It does not include a container workflow.

Prerequisites

• Node.js 22+
• npm / npx
• curl for raw REST examples
• Optional: OpenClaw with the upstream @askjo/camofox-browser plugin installed

Install this skill

Hermes

Install from the raw SKILL.md URL:

hermes skills install https://raw.githubusercontent.com/tmchow/agent-skills/main/camofox-cloaked-browser/SKILL.md

From an interactive Hermes CLI session, use the slash command path:

/skills install https://raw.githubusercontent.com/tmchow/agent-skills/main/camofox-cloaked-browser/SKILL.md
/reload-skills
/skill camofox-cloaked-browser

Use /reload-skills if installing into an already-running session; then load it with /skill camofox-cloaked-browser when needed.

OpenClaw

Install from ClawHub:

openclaw skills install camofox-cloaked-browser

ClawHub page: https://clawhub.ai/tmchow/camofox-cloaked-browser

Default Camofox target

http://127.0.0.1:9377

Start Camofox locally

npx -y @askjo/camofox-browser

Or from a clone:

git clone https://github.com/jo-inc/camofox-browser
cd camofox-browser
npm install
npm start

The first install/run downloads the Camoufox browser binary unless CAMOUFOX_EXECUTABLE points to an existing compatible bundle.

What the skill teaches agents

• When Camofox is actually warranted and when to use cheaper tools instead
• OpenClaw plugin tools and CLI commands: openclaw camofox status/start/stop/tabs/configure
• Raw REST API commands for tabs, navigation, snapshots, clicks, typing, scrolling, screenshots, links/images, JS evaluation, structured extraction, and cleanup
• Hard workflow rules: check /health, always send userId, prefer sessionKey, snapshot before refs, re-snapshot after state changes
• Environment variables for npm/server mode, auth, telemetry, browser binary overrides, proxy settings, and Hermes CAMOFOX_URL
• Hermes-specific gotcha: globally visible CAMOFOX_URL routes Hermes browser calls through Camofox for that process

Important defaults

• Default base URL: http://127.0.0.1:9377
• No auth is needed for local loopback development unless sensitive endpoints are used
• Set CAMOFOX_ACCESS_KEY if exposing beyond localhost
• Set CAMOFOX_API_KEY for cookie import
• Set CAMOFOX_CRASH_REPORT_ENABLED=false to disable upstream crash/hang telemetry