User-Agent
Mozilla/5.0 (X11; Linux x86_64; rv:147.0) Gecko/20100101 Firefox/147.0
first seen 2026-06-29 15:42 · last seen 2026-07-09 10:35 · JSON
Decomposed attributes
| Browser / client | Firefox 147.0 |
|---|---|
| Operating system | Linux x86_64 |
| 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)
| fingerprint | co-occurrences |
|---|---|
t13d311000_e8f1e7e78f70_518fb456ca59 | 5 |
t13d1717h2_5b57614c22b0_3cbfd9057e0d Match?Exact match in Thumbprint's published controlled catalog captures: firefox 148.0.2, firefox 144.0.2, firefox 142.0.1, +6 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
t13d1717h2_5b57614c22b0_68c5a8c2958d | 1 |
HTTP request (JA4H)
HTTP/2 frames (Akamai)
| fingerprint | co-occurrences |
|---|---|
1:65536;2:0;4:131072;5:16384|12517377|3:0:0:42|m,p,a,s Match?Exact match in Thumbprint's published controlled catalog captures: firefox 154.0, firefox 152.0.5, firefox 152.0.1, +3 more.The fingerprint page shows the full measured match list. More on the catalog. | 1 |
1:65536;2:0;4:131072;5:16384|12517377|1:0:0:42|m,p,a,s | 1 |
TCP SYN (p0f)
TCP SYN (JA4T)
| fingerprint | co-occurrences |
|---|---|
65535_2-1-3-1-1-4_1460_1 | 4 |
64240_2-4-8-1-3_1460_7 | 1 |
64240_2-1-3-1-1-4_1460_8 | 1 |
Country
| fingerprint | co-occurrences |
|---|---|
GB · United Kingdom | 5 |
US · United States | 1 |
FR · France | 1 |
Network (ASN)
| fingerprint | co-occurrences |
|---|---|
AS201579 · HOSTGNOME LTD | 5 |
AS200373 · 3xK Tech GmbH | 1 |
AS3215 · Orange S.A. | 1 |