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.

33926 entries · Last updated Jul 22, 2026, 08:15:55 AM

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Firefox User-Agents — updated Jul 22, 2026, 08:15:55 AM

4822 results
# Raw User-Agent Browser OS Device
401 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/4246-04-03 11:10:25.374527 Firefox/3.8 Firefox 3.8 Linux —
402 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/4241-07-06 22:57:19.067551 Firefox/14.0 Firefox 14.0 Linux —
403 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/9828-02-05 05:13:36.511841 Firefox/15.0 Firefox 15.0 Linux —
404 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_10_6; rv:1.9.5.20) Gecko/5081-08-10 22:37:19.446396 Firefox/3.8 Firefox 3.8 macOS —
405 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_8_9; rv:1.9.4.20) Gecko/5822-12-04 17:15:47.157394 Firefox/3.6.14 Firefox 3.6.14 macOS —
406 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/5475-02-22 19:49:15.355637 Firefox/3.8 Firefox 3.8 Linux —
407 Mozilla/5.0 (Windows NT 5.1; cy-GB; rv:1.9.2.20) Gecko/5154-01-11 19:35:56.177277 Firefox/3.8 Firefox 3.8 Windows —
408 Mozilla/5.0 (Windows NT 5.1; ckb-IQ; rv:1.9.2.20) Gecko/9225-04-07 15:06:32.740601 Firefox/9.0 Firefox 9.0 Windows —
409 Mozilla/5.0 (X11; Linux i686; rv:1.9.7.20) Gecko/8309-04-20 09:09:51.623260 Firefox/14.0 Firefox 14.0 Linux —
410 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_8_0; rv:1.9.4.20) Gecko/2908-01-28 11:49:03.638447 Firefox/5.0 Firefox 5.0 macOS —
411 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/4385-08-05 02:41:43.607498 Firefox/12.0 Firefox 12.0 Linux —
412 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/6090-04-19 15:43:35.858368 Firefox/3.8 Firefox 3.8 Linux —
413 Mozilla/5.0 (X11; Linux i686; rv:1.9.7.20) Gecko/9569-09-29 19:44:54.262665 Firefox/4.0 Firefox 4.0 Linux —
414 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/5715-01-21 09:17:05.732773 Firefox/3.8 Firefox 3.8 Linux —
415 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/5833-05-01 01:19:36.829926 Firefox/11.0 Firefox 11.0 Linux —
416 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_6_2; rv:1.9.3.20) Gecko/7220-11-16 17:04:26.457214 Firefox/3.6.19 Firefox 3.6.19 macOS —
417 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_12_5; rv:1.9.3.20) Gecko/2889-07-13 09:03:58.895077 Firefox/3.8 Firefox 3.8 macOS —
418 Mozilla/5.0 (X11; Linux i686; rv:1.9.7.20) Gecko/7556-03-13 14:23:03.287567 Firefox/11.0 Firefox 11.0 Linux —
419 Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/7972-06-12 02:00:17.857117 Firefox/3.6.7 Firefox 3.6.7 Linux —
420 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_10_1; rv:1.9.5.20) Gecko/7384-06-08 04:16:16.719757 Firefox/9.0 Firefox 9.0 macOS —
421 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/4857-10-31 00:21:46.313828 Firefox/7.0 Firefox 7.0 Linux —
422 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/8376-10-18 23:52:04.820343 Firefox/3.6.13 Firefox 3.6.13 Linux —
423 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/5641-09-28 12:24:17.869080 Firefox/9.0 Firefox 9.0 Linux —
424 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/4526-12-12 14:08:32.086304 Firefox/3.8 Firefox 3.8 Linux —
425 Mozilla/5.0 (Windows 98; ks-IN; rv:1.9.1.20) Gecko/3827-09-07 23:01:55.271729 Firefox/3.6.14 Firefox 3.6.14 Windows —
426 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_10_1; rv:1.9.3.20) Gecko/8503-02-15 18:52:24.709167 Firefox/3.6.3 Firefox 3.6.3 macOS —
427 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_11_0; rv:1.9.3.20) Gecko/8023-03-19 05:36:31.584930 Firefox/3.8 Firefox 3.8 macOS —
428 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/5677-01-05 18:55:12.428070 Firefox/11.0 Firefox 11.0 Linux —
429 Mozilla/5.0 (Windows NT 6.0; he-IL; rv:1.9.2.20) Gecko/3749-11-02 21:24:34.183006 Firefox/3.8 Firefox 3.8 Windows —
430 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_8_6; rv:1.9.3.20) Gecko/6273-12-11 08:33:08.145035 Firefox/3.6.8 Firefox 3.6.8 macOS —
431 Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/9037-03-14 00:25:42.978821 Firefox/3.8 Firefox 3.8 Linux —
432 Mozilla/5.0 (Windows 98; xh-ZA; rv:1.9.2.20) Gecko/2156-05-17 08:34:47.807798 Firefox/6.0 Firefox 6.0 Windows —
433 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_5_3; rv:1.9.3.20) Gecko/2372-12-19 05:46:21.997171 Firefox/3.8 Firefox 3.8 macOS —
434 Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Firefox 52.0 Linux —
435 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_1; rv:1.9.6.20) Gecko/5813-07-04 15:35:40.403229 Firefox/7.0 Firefox 7.0 macOS —
436 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_3; rv:1.9.3.20) Gecko/2560-10-10 00:28:31.371243 Firefox/3.6.15 Firefox 3.6.15 macOS —
437 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3; rv:1.9.6.20) Gecko/7873-06-16 21:56:49.272919 Firefox/10.0 Firefox 10.0 macOS —
438 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_12_3; rv:1.9.2.20) Gecko/5035-08-28 07:03:31.333221 Firefox/3.8 Firefox 3.8 macOS —
439 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/8710-09-27 06:56:09.714630 Firefox/6.0 Firefox 6.0 Linux —
440 Mozilla/5.0 (Windows NT 6.2; nl-AW; rv:1.9.1.20) Gecko/2571-09-27 00:05:18.114212 Firefox/15.0 Firefox 15.0 Windows —
441 Mozilla/5.0 (Windows NT 5.1; fo-FO; rv:1.9.0.20) Gecko/2624-04-22 08:42:11.156788 Firefox/3.6.12 Firefox 3.6.12 Windows —
442 Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/5527-04-18 18:58:17.593445 Firefox/3.6.9 Firefox 3.6.9 Linux —
443 Mozilla/5.0 (Windows NT 6.0; ti-ET; rv:1.9.0.20) Gecko/7638-08-21 04:28:31.149200 Firefox/3.6.17 Firefox 3.6.17 Windows —
444 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/9292-04-27 11:37:02.073273 Firefox/3.8 Firefox 3.8 Linux —
445 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_6_4; rv:1.9.5.20) Gecko/9434-02-26 08:52:41.645050 Firefox/3.6.20 Firefox 3.6.20 macOS —
446 Mozilla/5.0 (Windows NT 10.0; be-BY; rv:1.9.0.20) Gecko/3467-12-17 13:47:56.776337 Firefox/3.8 Firefox 3.8 Windows —
447 Mozilla/5.0 (Windows 98; ky-KG; rv:1.9.1.20) Gecko/6408-11-14 10:35:32.524353 Firefox/3.6.9 Firefox 3.6.9 Windows —
448 Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/5390-06-01 12:30:56.405594 Firefox/3.8 Firefox 3.8 Linux —
449 Mozilla/5.0 (Windows NT 10.0; hr-HR; rv:1.9.2.20) Gecko/7068-05-23 03:17:35.224823 Firefox/3.6.19 Firefox 3.6.19 Windows —
450 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/2464-03-31 02:27:48.987638 Firefox/10.0 Firefox 10.0 Linux —

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