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.

77849 entries · Last updated Sep 23, 2026, 04:08:41 AM

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Firefox User-Agents — updated Sep 23, 2026, 04:08:41 AM

11055 results
# Raw User-Agent Browser OS Device
1 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:151.0) Gecko/20100101 Firefox/151.0 Firefox 151.0 macOS —
2 Mozilla/5.0 (Macintosh; Intel Mac OS X 11.7; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
3 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/135.0 Firefox 135.0 macOS —
4 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/121.0 Firefox 121.0 Windows —
5 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 Windows —
6 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0 Firefox 155.0 Windows —
7 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/114.0 Firefox 114.0 Ubuntu —
8 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.6; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
9 Mozilla/5.0 (Macintosh; Intel Mac OS X 15.0; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 macOS —
10 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:147.0) Gecko/20100101 Firefox/147.0 Firefox 147.0 macOS —
11 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:59.0) Gecko/20100101 Firefox/59.0 Firefox 59.0 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 (Windows NT 10.0; Win64; x64; rv:156.0) Gecko/20100101 Firefox/156.0 Firefox 156.0 Windows —
14 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Windows —
15 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 Windows —
16 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0 Firefox 132.0 Windows —
17 Mozilla/5.0 (X11; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Linux —
18 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
19 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 Windows —
20 Mozilla/5.0 (X11; Linux x86_64; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 Linux —
21 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123 Firefox 123 Windows —
22 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7; rv:93.0) Gecko/20100101 Firefox/93.0 Firefox 93.0 macOS —
23 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7; rv:92.0) Gecko/20100101 Firefox/92.0 Firefox 92.0 macOS —
24 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0.2 Firefox 89.0.2 Windows —
25 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7; rv:89.0) Gecko/20100101 Firefox/89.0.2 Firefox 89.0.2 macOS —
26 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.6; rv:132.0) Gecko/20100101 Firefox/132.0 Firefox 132.0 macOS —
27 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:82.0) Gecko/20100101 Firefox/82.0 Firefox 82.0 Windows —
28 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:152.0) Gecko/20100101 Firefox/152.0 Firefox 152.0 Ubuntu —
29 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0 Firefox 118.0 Windows —
30 Mozilla/5.0 (Macintosh; Intel Mac OS X 13.3; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
31 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:157.0) Gecko/20100101 Firefox/157.0 Firefox 157.0 Windows —
32 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:129.0) Gecko/20100101 Firefox/129.0 Firefox 129.0 macOS —
33 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 macOS —
34 Mozilla/5.0 (Macintosh; Intel Mac OS X 12.6; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 macOS —
35 Mozilla/5.0 (X11; Linux x86_64; rv:156.0) Gecko/20100101 Firefox/156.0 Firefox 156.0 Linux —
36 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.4; rv:132.0) Gecko/20100101 Firefox/132.0 Firefox 132.0 macOS —
37 Mozilla/5.0 Firefox/26.0 Firefox 26.0 — —
38 Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/112.0 Firefox 112.0 Linux —
39 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.3; rv:127.0) Gecko/20100101 Firefox/127.0 Firefox 127.0 macOS —
40 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:156.0) Gecko/20100101 Firefox/156.0 Firefox 156.0 macOS —
41 Mozilla/5.0 (Windows NT 10.0; Win64; rv:143.0) Gecko/20100101 Firefox/143.0 Firefox 143.0 Windows —
42 Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.9.1.3) Gecko/20091020 Ubuntu/9.10 (karmic) Firefox/3.5.3 Firefox 3.5.3 Ubuntu —
43 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.6; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 macOS —
44 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:127.0) Gecko/20100101 Firefox/127.0 Firefox 127.0 Windows —
45 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0 Firefox 49.0 Windows —
46 Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9b4) Gecko/2008040813 Firefox/3.0b4 Firefox 3.0b4 Linux —
47 Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 Firefox 140.0 Linux —
48 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 Windows —
49 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 macOS —
50 Mozilla/5.0 (X11; Linux x86_64; rv:137.0) Gecko/20100101 Firefox/137.0 Firefox 137.0 Linux —

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