Firefox

A living catalog of real browser User-Agent strings seen on CheckProxy.org and shared IP databases. Filter by browser, operating system, device type, or search the raw string — ideal for antidetect profiles and proxy testing.

1864 entries · Last updated Jun 6, 2026, 01:38:39 AM

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Firefox User-Agents — updated Jun 6, 2026, 01:38:39 AM

250 results
# Raw User-Agent Browser OS Device
1 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:151.0) Gecko/20100101 Firefox/151.0 Firefox 151.0 Windows —
2 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 Windows —
3 Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 Linux —
4 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0 Firefox 49.0 Windows —
5 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:149.0) Gecko/20100101 Firefox/149.0 Firefox 149.0 macOS —
6 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0 Firefox 115.0 Windows —
7 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0 Firefox 56.0 Windows —
8 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:150.0) Gecko/20100101 Firefox/150.0 Firefox 150.0 Windows —
9 Mozilla/5.0 (X11; Linux x86_64; rv:150.0) Gecko/20100101 Firefox/150.0 Firefox 150.0 Linux —
10 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:150.0) Gecko/20100101 Firefox/150.0 Firefox 150.0 macOS —
11 Mozilla/5.0 (X11; Linux x86_64; rv:149.0) Gecko/20100101 Firefox/149.0 Firefox 149.0 Linux —
12 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:149.0) Gecko/20100101 Firefox/149.0 Firefox 149.0 Windows —
13 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:151.0) Gecko/20100101 Firefox/151.0 Firefox 151.0 macOS —
14 Mozilla/5.0 (Windows NT 5.01; nan-TW; rv:1.9.0.20) Gecko/3564-03-01 16:33:21.032402 Firefox/4.0 Firefox 4.0 Windows —
15 Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Linux —
16 Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Firefox 52.0 Linux —
17 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 Windows —
18 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:59.0) Gecko/20100101 Firefox/59.0 Firefox 59.0 Windows —
19 Mozilla/5.0 (Windows NT 10.0; Win64; rv:143.0) Gecko/20100101 Firefox/143.0 Firefox 143.0 Windows —
20 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 macOS —
21 Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115 Firefox 115 Windows —
22 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0 Firefox 121.0 Windows —
23 Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Fedora —
24 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:82.0) Gecko/20100101 Firefox/82.0 Firefox 82.0 Windows —
25 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.0 Firefox 151.0 Ubuntu —
26 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:134.0) Gecko/20100101 Firefox/134.0 Firefox 134.0 Ubuntu —
27 Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 Linux —
28 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 macOS —
29 Mozilla/5.0 (Windows NT 10.0; Win64; x64; WOW64; rv:41.0) Gecko/20100101 Firefox/140.0.1 (x64 de) Firefox 140.0.1 Windows —
30 Mozilla/5.0 (X11; Linux x86_64; rv:144.0) Gecko/20100101 Firefox/144.0 Firefox 144.0 Linux —
31 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:77.0) Gecko/20100101 Firefox/77.0 Firefox 77.0 macOS —
32 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 Windows —
33 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:115.0) Gecko/20100101 Firefox/115.0 Firefox 115.0 macOS —
34 Mozilla/5.0 (Windows NT 6.2; dv-MV; rv:1.9.1.20) Gecko/2131-06-22 12:20:46.395041 Firefox/5.0 Firefox 5.0 Windows —
35 Mozilla/5.0 (X11; Linux x86_64; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 Linux —
36 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0 Firefox 147.0 macOS —
37 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:6.0a2) Gecko/20110622 Firefox/6.0a2 Firefox 6.0a2 Windows —
38 Mozilla/5.0 (X11; Linux x86_64; rv:127.0) Gecko/20100101 Firefox/127.0 Firefox 127.0 Linux —
39 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:124.0) Gecko/20100101 Firefox/124.0 Firefox 124.0 Windows —
40 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_2; rv:10.0.1) Gecko/20100101 Firefox/10.0.1 Firefox 10.0.1 macOS —
41 Mozilla/5.0 (X11; Linux x86_64) Gecko/20100101 Firefox/138.0 Firefox 138.0 Linux —
42 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0 Firefox 64.0 Windows —
43 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:127.0) Gecko/20100101 Firefox/127.0 Firefox 127.0 Windows —
44 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
45 Mozilla/5.0 (X11; Linux i686; rv:109.0) Gecko/20100101 Firefox/120.0 Firefox 120.0 Linux —
46 Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 Linux —
47 Mozilla/5.0 (X11; Linux x86_64; rv:142.0) Gecko/20100101 Firefox/142.0 Firefox 142.0 Linux —
48 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.7; rv:149.0) Gecko/20100101 Firefox/149.0 Firefox 149.0 macOS —
49 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 Windows —
50 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115 Firefox 115 Windows —

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