Catalog session #15
firefox-esr unknown on Linux — identity declared before the run, captured through the live edge.
| Verification | controlled |
|---|---|
| Runner | container |
| Registered | 2026-06-11 10:49 |
| Captured | 2026-06-11 10:49 |
| Driver | capture-matrix/dc38911 |
| Mode | prod |
| Image | fpcap-firefox-headless |
| Image digest | sha256:5bce5de8240a |
| Raw client version | [1] Sandbox: CanCreateUserNamespace() clone() failure: EPERM |
Captures (1)
The first capture is the registration page view; probe captures are the beacon hitting each configured origin with this session's correlation id — for browsers that is how one session records both the TCP and QUIC stacks.
2026-06-11 10:49 · page · quic (HTTP/3) · thumbprint.me
| TLS ClientHello (JA4) | q13d0314h3_55b375c5d22e_61e396c58b1f |
|---|---|
| HTTP request (JA4H) | ge30nn10enus_f7dc2d479a07_000000000000_000000000000 |
| QUIC transport params | q13_29150affcbde |
| User-Agent | Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 |
verbatim wire tuple (immutable evidence, includes raw variants)
{
"alpn": "h3",
"ja4": "q13d0314h3_55b375c5d22e_61e396c58b1f",
"ja4_o": "q13d0314h3_85902d7a8465_3c897116ad82",
"ja4_r": "q13d0314h3_1301,1302,1303_0005,000a,000d,0017,001c,0022,002b,002d,0033,0039,fe0d,ff01_0403,0503,0603,0203,0804,0805,0806,0401,0501,0601,0201",
"ja4_ro": "q13d0314h3_1301,1303,1302_000d,0005,000a,002d,0000,0010,0022,ff01,002b,0033,0017,001c,0039,fe0d_0403,0503,0603,0203,0804,0805,0806,0401,0501,0601,0201",
"ja4h": "ge30nn10enus_f7dc2d479a07_000000000000_000000000000",
"ja4h_r": "ge30nn10enus_host,user-agent,accept,accept-language,accept-encoding,upgrade-insecure-requests,sec-fetch-dest,sec-fetch-mode,sec-fetch-site,priority__000000000000",
"quic_tp": "q13_29150affcbde",
"quic_tp_r": "q13_0001,0004,0005,0006,0007,0008,0009,000b,000e,000f,0011,001b,0020",
"tls_cipher": "TLS_AES_128_GCM_SHA256",
"tls_version": "TLSv1.3",
"user_agent": "Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0"
}