User-Agent
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
first seen 2026-06-29 23:12 · last seen 2026-07-06 08:10 · JSON
Decomposed attributes
| Browser / client | Firefox 134.0 |
|---|
| Operating system | Windows 10.0 |
|---|
| Device class | desktop |
|---|
| Note | inferred 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)
HTTP request (JA4H)
HTTP/2 frames (Akamai)
TCP SYN (p0f)
| fingerprint | co-occurrences |
|---|
4:45+19:0:1260:mss*52,7:mss,sok,ts,nop,ws:df,id+:0 | 1 |
4:243+12:0:1460:26883,7:mss,sok,ts,nop,ws:df,id+:0 | 1 |
TCP SYN (JA4T)
QUIC transport params
| fingerprint | co-occurrences |
|---|
q12_022106b74856 Match?Exact match in Thumbprint's published controlled catalog captures: firefox 153.0, firefox 153.0.3, firefox 154.0, +25 more.The fingerprint page shows the full measured match list. More on the catalog. | 2 |
Country
| fingerprint | co-occurrences |
|---|
NO · Norway | 3 |
ES · Spain | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|
AS50304 · Blix Solutions AS | 3 |
AS16509 · Amazon.com, Inc. | 1 |
Cross-transport links
TLS ClientHello fingerprints observed from the same client via the beacon's correlation id on the other transport (e.g. this stack over TCP ↔ that stack over QUIC).