100% detection rate by Xero

[luchesar]

Request/response proxy log:

requests-response-log.zip

Website detecting Camoufox:

https://login.xero.com - after successful login only

Screenshots:

To Reproduce:

1. Open a Camoufox browser

    constrains = Screen(
                   min_width=1920, min_height=1080, max_width=1920, max_height=1080
               )
               async with AsyncCamoufox(
                   geoip=True,
                   locale="en-US",
                   proxy={
                       "server": f"http://localhost:{port}",
                   },
                   screen=constrains,
                   args=["--start-maximized"],
               ) as browser:
                   context = await browser.new_context(
                       ignore_https_errors=True,
                       accept_downloads=True,
                       bypass_csp=True,
                   )
                   await context.new_page()
   

2. Manually navigate to https://login.xero.com

3. Login with valid credentials

4. Xero detects the browser and refuses to continue

Other questions:

These questions will help me diagnose the issue:

1. Are you using a proxy?

Yes. I am useing mitmproxy . When not using it camoufox is not detected.

2. Open the website in a private tab in your personal browser using the same IP. Does it work?

Yes it does work even with a proxy.

3. Is Camoufox detected randomly or every time?

Every time.

4. What OS are you using?

It gets detected on Mac, Windows and Linux

Version:

Pip package: v0.4.11 Camoufox: v135.0.1-beta.24 (Up to date!)

[duartemvix]

Looks like it's network related. Try changing your outbound IP address.

[KittisakPh]

same issue pls fix this

[WhZzi]

This should be ssl fingerprint problem of mitmproxy

[coryking]

Hey, I forked the repo and pushed a few new binaries you might want to try out. I upgraded from firefox 135 to 142, which I suspect was a lot of the reason this browser was starting to misbehave.

I haven't had much time to really test it though. You'll also need to update your python package as per the readme in my fork.

https://github.com/coryking/camoufox

[spikeruk]

Fails: https://pixelscan.net/fingerprint-check

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