u/bolaretyr

I got tired of anti-bot systems constantly breaking my Playwright AI agent, so I built StealthFox: an open-source, MIT-licensed Firefox fork patched at the C++ level.

Instead of reusing the same noisy automation fingerprint, StealthFox generates a different but internally consistent browser fingerprint for each session. It removed all Playwright automation signals.

Category	StealthFox result
WebRTC	✅ Pass — no public IP leak
DNS leaks	✅ Pass — no leak
PixelScan	✅ Pass — no inconsistencies
CreepJS	✅ Pass — 0 lies
SannySoft	✅ Pass — all green
BrowserLeaks WebRTC	✅ Pass — no public IP leak
Canvas / WebGL / Audio	✅ Pass — consistent
Timezone / locale / client hints	✅ Pass — consistent
Headless / automation signals	✅ Pass — not exposed
reCAPTCHA v3	✅ Pass — 0.90
Fingerprint Pro	✅ Pass — bot=false, tampering=false
Cloudflare / Turnstile	✅ Pass
hCaptcha	✅ Pass
DataDome-style checks	✅ Pass
Kasada-style checks	✅ Pass
Akamai-style checks	✅ Pass
Imperva-style checks	✅ Pass
HUMAN / PerimeterX-style checks	✅ Pass
Arkose-style checks	✅ Pass

Repo: https://github.com/P0st3rw-max/stealthfox

I got tired of anti-bot systems constantly breaking my Playwright AI agent, so I built StealthFox: an open-source, MIT-licensed Firefox fork patched at the C++ level.

Instead of reusing the same noisy automation fingerprint, StealthFox generates a different but internally consistent browser fingerprint for each session. It removed all Playwright automation signals.

Category	StealthFox result
WebRTC	✅ Pass — no public IP leak
DNS leaks	✅ Pass — no leak
PixelScan	✅ Pass — no inconsistencies
CreepJS	✅ Pass — 0 lies
SannySoft	✅ Pass — all green
BrowserLeaks WebRTC	✅ Pass — no public IP leak
Canvas / WebGL / Audio	✅ Pass — consistent
Timezone / locale / client hints	✅ Pass — consistent
Headless / automation signals	✅ Pass — not exposed
reCAPTCHA v3	✅ Pass — 0.90
Fingerprint Pro	✅ Pass — bot=false, tampering=false
Cloudflare / Turnstile	✅ Pass
hCaptcha	✅ Pass
DataDome-style checks	✅ Pass
Kasada-style checks	✅ Pass
Akamai-style checks	✅ Pass
Imperva-style checks	✅ Pass
HUMAN / PerimeterX-style checks	✅ Pass
Arkose-style checks	✅ Pass

Repo: https://github.com/P0st3rw-max/stealthfox

I got tired of anti-bot systems constantly breaking my Playwright AI agent, so I built StealthFox: an open-source, MIT-licensed Firefox fork patched at the C++ level.

Instead of reusing the same noisy automation fingerprint, StealthFox generates a different but internally consistent browser fingerprint for each session. It removed all Playwright automation signals.

Category	StealthFox result
WebRTC	✅ Pass — no public IP leak
DNS leaks	✅ Pass — no leak
PixelScan	✅ Pass — no inconsistencies
CreepJS	✅ Pass — 0 lies
SannySoft	✅ Pass — all green
BrowserLeaks WebRTC	✅ Pass — no public IP leak
Canvas / WebGL / Audio	✅ Pass — consistent
Timezone / locale / client hints	✅ Pass — consistent
Headless / automation signals	✅ Pass — not exposed
reCAPTCHA v3	✅ Pass — 0.90
Fingerprint Pro	✅ Pass — bot=false, tampering=false
Cloudflare / Turnstile	✅ Pass
hCaptcha	✅ Pass
DataDome-style checks	✅ Pass
Kasada-style checks	✅ Pass
Akamai-style checks	✅ Pass
Imperva-style checks	✅ Pass
HUMAN / PerimeterX-style checks	✅ Pass
Arkose-style checks	✅ Pass

Repo: https://github.com/P0st3rw-max/stealthfox

I got tired of anti-bot systems constantly breaking my Playwright AI agent, so I built StealthFox: an open-source, MIT-licensed Firefox fork patched at the C++ level.

Instead of reusing the same noisy automation fingerprint, StealthFox generates a different but internally consistent browser fingerprint for each session. It removed all Playwright automation signals.

Category	StealthFox result
WebRTC	✅ Pass — no public IP leak
DNS leaks	✅ Pass — no leak
PixelScan	✅ Pass — no inconsistencies
CreepJS	✅ Pass — 0 lies
SannySoft	✅ Pass — all green
BrowserLeaks WebRTC	✅ Pass — no public IP leak
Canvas / WebGL / Audio	✅ Pass — consistent
Timezone / locale / client hints	✅ Pass — consistent
Headless / automation signals	✅ Pass — not exposed
reCAPTCHA v3	✅ Pass — 0.90
Fingerprint Pro	✅ Pass — bot=false, tampering=false
Cloudflare / Turnstile	✅ Pass
hCaptcha	✅ Pass
DataDome-style checks	✅ Pass
Kasada-style checks	✅ Pass
Akamai-style checks	✅ Pass
Imperva-style checks	✅ Pass
HUMAN / PerimeterX-style checks	✅ Pass
Arkose-style checks	✅ Pass

Repo: https://github.com/P0st3rw-max/stealthfox

I got tired of anti-bot systems constantly breaking my Playwright AI agent, so I built StealthFox: an open-source, MIT-licensed Firefox fork patched at the C++ level.

Instead of reusing the same noisy automation fingerprint, StealthFox generates a different but internally consistent browser fingerprint for each session. It removed all Playwright automation signals.

Category	StealthFox result
WebRTC	✅ Pass — no public IP leak
DNS leaks	✅ Pass — no leak
PixelScan	✅ Pass — no inconsistencies
CreepJS	✅ Pass — 0 lies
SannySoft	✅ Pass — all green
BrowserLeaks WebRTC	✅ Pass — no public IP leak
Canvas / WebGL / Audio	✅ Pass — consistent
Timezone / locale / client hints	✅ Pass — consistent
Headless / automation signals	✅ Pass — not exposed
reCAPTCHA v3	✅ Pass — 0.90
Fingerprint Pro	✅ Pass — bot=false, tampering=false
Cloudflare / Turnstile	✅ Pass
hCaptcha	✅ Pass
DataDome-style checks	✅ Pass
Kasada-style checks	✅ Pass
Akamai-style checks	✅ Pass
Imperva-style checks	✅ Pass
HUMAN / PerimeterX-style checks	✅ Pass
Arkose-style checks	✅ Pass

Repo: https://github.com/P0st3rw-max/stealthfox

reCAPTCHA v3 at 0.3, FP Pro flagging bot:true, Cloudflare banning my ASN on sight. Sick of it.

Built this: a Firefox patched at the C++:

reCAPTCHA v3 0.90, FP Pro bot=false, tampering=false · CreepJS 0 lies · sannysoft all green · WebRTC no leak.

Self-hosted, MIT, no cloud, no subscription.

Repo: https://github.com/P0st3rw-max/stealthfox