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.

33925 entries · Last updated Jul 22, 2026, 05:23:50 AM

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Firefox User-Agents — updated Jul 22, 2026, 05:23:50 AM

4822 results
# Raw User-Agent Browser OS Device
301 Mozilla/5.0 (Windows NT 10.0; am-ET; rv:1.9.2.20) Gecko/4401-09-09 08:43:36.611389 Firefox/3.6.7 Firefox 3.6.7 Windows —
302 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:151.0) Gecko/20100101 Firefox/151.0 Firefox 151.0 Ubuntu —
303 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_1; rv:1.9.5.20) Gecko/6908-12-05 05:09:59.777557 Firefox/4.0 Firefox 4.0 macOS —
304 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/8584-06-13 14:00:17.792877 Firefox/11.0 Firefox 11.0 Linux —
305 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/4540-06-07 02:18:00.963165 Firefox/3.6.12 Firefox 3.6.12 Linux —
306 Mozilla/5.0 (Windows NT 10.0; Win64; x64; WOW64; rv:41.0) Gecko/20100101 Firefox/140.0.4 (x64 de) Firefox 140.0.4 Windows —
307 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0 Firefox 108.0 Windows —
308 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:132.0) Gecko/20100101 Firefox/132.0 Firefox 132.0 Windows —
309 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_5_3; rv:1.9.6.20) Gecko/5000-10-07 00:51:32.090469 Firefox/3.8 Firefox 3.8 macOS —
310 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:142.0) Gecko/20100101 Firefox/142.0 Firefox 142.0 Windows —
311 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:142.0) Gecko/20100101 Firefox/142.0,gzip(gfe) Firefox 142.0 Windows —
312 Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6 GTB5 Firefox 3.5.6 Windows —
313 Mozilla/5.0 (X11; U; FreeBSD i386; de-CH; rv:1.9.2.8) Gecko/20100729 Firefox/3.6.8 Firefox 3.6.8 FreeBSD —
314 Mozilla/5.0 (X11; Linux i686; rv:1.9.7.20) Gecko/8333-01-24 01:05:26.912201 Firefox/14.0 Firefox 14.0 Linux —
315 Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:109.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 Windows —
316 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:49.0) Gecko/20100101 Firefox/49.0 Firefox 49.0 macOS —
317 Mozilla/5.0 (Windows NT 5.1; crh-UA; rv:1.9.2.20) Gecko/6617-10-07 19:48:04.740082 Firefox/15.0 Firefox 15.0 Windows —
318 Mozilla/5.0 (Windows NT 5.1; pa-PK; rv:1.9.1.20) Gecko/6386-09-17 20:44:44.530518 Firefox/11.0 Firefox 11.0 Windows —
319 Mozilla/5.0 (X11; Linux x86_64; rv:107.0) Gecko/20100101 Firefox/107.0 Firefox 107.0 Linux —
320 Mozilla/5.0 (Windows CE; fil-PH; rv:1.9.1.20) Gecko/8598-07-22 14:51:58.800201 Firefox/3.6.5 Firefox 3.6.5 Windows CE —
321 Mozilla/5.0 (X11; Linux x86_64; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 Linux —
322 Mozilla/5.0 (Macintosh; Intel Mac OS X 13_6_7; rv:126.0) Gecko/20100101 Firefox/126.0 Firefox 126.0 macOS —
323 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Ubuntu —
324 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_7; rv:1.9.3.20) Gecko/5227-03-01 12:42:34.285553 Firefox/3.6.20 Firefox 3.6.20 macOS —
325 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Windows —
326 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_5_1; rv:1.9.5.20) Gecko/6939-01-10 00:41:46.831085 Firefox/3.6.4 Firefox 3.6.4 macOS —
327 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_8_1; rv:1.9.2.20) Gecko/6005-06-08 16:23:17.109451 Firefox/3.8 Firefox 3.8 macOS —
328 Mozilla/5.0 (Windows NT 6.1; rv:49.0) Gecko/20100101 Firefox/49.0 Firefox 49.0 Windows —
329 Mozilla/5.0 (iPhone; CPU iPhone OS 17_4_2 like Mac OS X; rv:126.0.1) Gecko/20100101 Firefox/126.0.1 Firefox 126.0.1 iOS mobile
330 Mozilla/5.0 (X11; Linux x86_64) Firefox/117.0 Firefox 117.0 Linux —
331 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/56.0 Firefox 56.0 Windows —
332 Mozilla/5.0 (Windows NT 6.0; ta-LK; rv:1.9.0.20) Gecko/4043-08-07 06:07:13.677101 Firefox/3.8 Firefox 3.8 Windows —
333 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0 Firefox 115.0 Windows —
334 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0 Firefox 139.0 Windows —
335 Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:125.0) Gecko/20100101 Firefox/125.0 Firefox 125.0 Fedora —
336 Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Firefox 91.0 Linux —
337 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/7708-05-09 03:46:53.935394 Firefox/10.0 Firefox 10.0 Linux —
338 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:145.0) Gecko/20100101 Firefox/145.0 Firefox 145.0 Ubuntu —
339 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:146.0) Gecko/20100101 Firefox/146.0 Firefox 146.0 Ubuntu —
340 Mozilla/5.0 (X11; U; Linux i686; en-us; rv:1.9.0.2) Gecko/2008092313 Ubuntu/9.04 (jaunty) Firefox/3.5 Firefox 3.5 Ubuntu —
341 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_5_3; rv:1.9.3.20) Gecko/7788-04-17 13:26:26.279541 Firefox/3.8 Firefox 3.8 macOS —
342 Mozilla/5.0 (Windows NT 10.0; rv:109.0) Gecko/20100101 Firefox/115.0 Firefox 115.0 Windows —
343 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_8_5; rv:1.9.5.20) Gecko/5815-10-16 11:33:16.945175 Firefox/3.6.16 Firefox 3.6.16 macOS —
344 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/7573-09-13 23:25:39.570312 Firefox/3.6.16 Firefox 3.6.16 Linux —
345 Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/4911-09-11 23:30:19.924591 Firefox/3.6.16 Firefox 3.6.16 Linux —
346 Mozilla/5.0 (Windows NT 10.0; rv:145.0) Gecko/20100101 Firefox/145.0 Firefox 145.0 Windows —
347 Mozilla/5.0 (Windows NT 5.01; am-ET; rv:1.9.1.20) Gecko/5514-08-25 03:36:51.729568 Firefox/3.8 Firefox 3.8 Windows —
348 Mozilla/5.0 (Windows NT 5.2; hak-TW; rv:1.9.0.20) Gecko/5807-02-01 00:40:41.979492 Firefox/3.8 Firefox 3.8 Windows —
349 Mozilla/5.0 (Windows NT 6.1; rv:109.0) Gecko/20100101 Firefox/115.0 Firefox 115.0 Windows —
350 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/7869-06-24 16:20:05.362000 Firefox/3.8 Firefox 3.8 Linux —

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