User-Agent

Mozilla/5.0 (Android 12; Mobile; rv:158.0) Gecko/158.0 Firefox/158.0

first seen 2026-10-24 16:32 · last seen 2026-10-24 16:32 · JSON

Last 7 days (1 observations)

Distinct clients per day (last 30 days, peak 1/day)

Distinct clients are counted by IP-hash per complete UTC day — unlike observation counts this is insensitive to one chatty client, but NAT merges clients and address rotation splits them.

Decomposed attributes

Browser / clientFirefox 158.0
Operating systemAndroid 12
Device classmobile
Noteinferred from the self-declared string — a claim, not a measurement; compare with the wire fingerprints above

Co-observed signals

Signals from other families seen in the same observation. A fingerprint spread thinly across many lower-layer signatures is a classic inconsistency signal.

TLS ClientHello (JA4)

fingerprintco-occurrences
t13d1517h2_8daaf6152771_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 155.0.1, firefox 154.0, firefox 156.0, +7 more.The fingerprint page shows the full measured match list. More on the catalog.1

HTTP request (JA4H)

fingerprintco-occurrences
ge20nr10encn_d353d425b0bb_000000000000_0000000000001

HTTP/2 frames (Akamai)

fingerprintco-occurrences
1:4096;2:0;4:32768;5:16384|12517377|3:0:0:42|m,p,a,s1

TCP SYN (p0f)

fingerprintco-occurrences
4:56+8:0:1460:mss*11,9:mss,sok,ts,nop,ws:df,id+:01

TCP SYN (JA4T)

fingerprintco-occurrences
16060_2-4-8-1-3_1460_91

Country

fingerprintco-occurrences
HK · Hong Kong SAR China1

Network (ASN)

fingerprintco-occurrences
AS9269 · Hong Kong Broadband Network Ltd.1

TLS supported groups

fingerprintco-occurrences
11ec,001d,0017,0018,0019 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 157.0.1, firefox-esr 153.5.1esr, firefox 158.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog.1