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.

35724 entries · Last updated Aug 9, 2026, 04:59:26 PM

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Firefox User-Agents — updated Aug 9, 2026, 04:59:26 PM

4992 results
# Raw User-Agent Browser OS Device
1 Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 Linux —
2 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.2; rv:127.0) Gecko/20100101 Firefox/127.0 Firefox 127.0 macOS —
3 Mozilla/5.0 (Macintosh; Intel Mac OS X 11.5; rv:129.0) Gecko/20100101 Firefox/129.0 Firefox 129.0 macOS —
4 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 Firefox 138.0 Ubuntu —
5 Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 Firefox 140.0 Linux —
6 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Windows —
7 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 Windows —
8 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.4; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 macOS —
9 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:134.0) Gecko/20100101 Firefox/134.0 Firefox 134.0 macOS —
10 Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Linux —
11 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:135.0) Gecko/20100101 Firefox/135.0 Firefox 135.0 Windows —
12 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 Windows —
13 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.2; rv:132.0) Gecko/20100101 Firefox/132.0 Firefox 132.0 macOS —
14 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0 Firefox 138.0 macOS —
15 Mozilla/5.0 (X11; Linux i686; rv:109.0) Gecko/20100101 Firefox/120.0 Firefox 120.0 Linux —
16 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.4; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
17 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.4; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
18 Mozilla/5.0 (Windows NT 11.0; WOW64; rv:153.0) Gecko/20100101 Firefox/153.0 Firefox 153.0 Windows —
19 Mozilla/5.0 (Macintosh; Intel Mac OS X 11.0; rv:135.0) Gecko/20100101 Firefox/135.0 Firefox 135.0 macOS —
20 Mozilla/5.0 (Macintosh; Intel Mac OS X 11.0; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
21 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 Windows —
22 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 Windows —
23 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 macOS —
24 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.3; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 macOS —
25 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:153.0) Gecko/20100101 Firefox/153.0 Firefox 153.0 Windows —
26 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.5; rv:127.0) Gecko/20100101 Firefox/127.0 Firefox 127.0 macOS —
27 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/121.0 Firefox 121.0 Windows —
28 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.3; rv:131.0) Gecko/20100101 Firefox/131.0 Firefox 131.0 macOS —
29 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.1; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
30 Mozilla/5.0 (Macintosh; Intel Mac OS X 11.2; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
31 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.4; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 macOS —
32 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.4; rv:130.0) Gecko/20100101 Firefox/130.0 Firefox 130.0 macOS —
33 Mozilla/5.0 (Macintosh; Intel Mac OS X 11.5; rv:130.0) Gecko/20100101 Firefox/130.0 Firefox 130.0 macOS —
34 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.0; rv:134.0) Gecko/20100101 Firefox/134.0 Firefox 134.0 macOS —
35 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.0; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 macOS —
36 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0 Firefox 118.0 Windows —
37 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 Windows —
38 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:129.0) Gecko/20100101 Firefox/129.0 Firefox 129.0 Windows —
39 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0 Firefox 155.0 Windows —
40 Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 Linux —
41 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.3; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
42 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0 Firefox 131.0 Windows —
43 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.3; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
44 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 Windows —
45 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.6; rv:130.0) Gecko/20100101 Firefox/130.0 Firefox 130.0 macOS —
46 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.3; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
47 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.4; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 macOS —
48 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:153.0) Gecko/20100101 Firefox/153.0 Firefox 153.0 Ubuntu —
49 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0 Firefox 147.0 macOS —
50 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.4; rv:134.0) Gecko/20100101 Firefox/134.0 Firefox 134.0 macOS —

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