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.

1923 entries · Last updated Jun 6, 2026, 12:43:40 PM

Filters

Clear

Firefox User-Agents — updated Jun 6, 2026, 12:43:40 PM

253 results
# Raw User-Agent Browser OS Device
251 Mozilla/5.0 (Windows NT 10.0; Win64; x64; WOW64; rv:41.0) Gecko/20100101 Firefox/140.0.2 (x64 de) Firefox 140.0.2 Windows —
252 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:122.0) Gecko/20100101 Firefox/122.0 Firefox 122.0 Windows —
253 Mozilla/5.0 (X11; Linux x86_64; rv:122.0) Gecko/20100101 Firefox/122.0 Firefox 122.0 Linux —

Browse by

By Browser

Chrome (611) Firefox (253) Mobile Chrome (218) Safari (129) Edge (128) Mobile Safari (124) Opera (78) IE (57) Mobile Firefox (35) Yandex (34) GSA (30) Android Browser (19) WebKit (17) WeChat (14) Brave (12) Chrome Headless (12) Vivaldi (12) Samsung Internet (11) UCBrowser (10) Chrome WebView (9) QQBrowser (9) Chromium (7) SeaMonkey (5) Konqueror (4) Opera Touch (4) Sogou Explorer (3) Mozilla (3) Smart Lenovo Browser (3) Baidu (3) QupZilla (3) Epiphany (3) MIUI Browser (3) Whale (3) DuckDuckGo (3) Opera Mini (3) Vivo Browser (2) Swiftfox (2) Avast Secure Browser (2) NAVER (2) Sleipnir (2)