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.

33850 entries · Last updated Jul 21, 2026, 11:23:57 PM

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Firefox User-Agents — updated Jul 21, 2026, 11:23:57 PM

4821 results
# Raw User-Agent Browser OS Device
151 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_7; rv:1.9.4.20) Gecko/6735-10-26 00:38:47.901886 Firefox/3.6.14 Firefox 3.6.14 macOS —
152 Mozilla/5.0 (Windows NT 4.0; bs-BA; rv:1.9.1.20) Gecko/5239-07-07 13:52:04.711746 Firefox/3.6.13 Firefox 3.6.13 Windows —
153 Mozilla/5.0 (Windows 95; da-DK; rv:1.9.1.20) Gecko/7465-04-15 09:47:16.410706 Firefox/3.8 Firefox 3.8 Windows —
154 Mozilla/5.0 (Windows 98; Win 9x 4.90; fy-NL; rv:1.9.0.20) Gecko/5852-03-26 00:20:37.588531 Firefox/3.6.1 Firefox 3.6.1 Windows —
155 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/6039-04-01 21:36:06.918655 Firefox/3.8 Firefox 3.8 Linux —
156 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0 Firefox 47.0 Windows —
157 Mozilla/5.0 (X11; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0 Firefox 139.0 Linux —
158 Mozilla/5.0 (Windows NT 11.0; mn-MN; rv:1.9.1.20) Gecko/3569-03-27 07:52:11.445587 Firefox/4.0 Firefox 4.0 Windows —
159 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_12_4; rv:1.9.4.20) Gecko/7057-10-30 09:13:28.828827 Firefox/4.0 Firefox 4.0 macOS —
160 Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10_11_5; rv:1.9.5.20) Gecko/3488-08-09 12:13:20.554787 Firefox/6.0 Firefox 6.0 macOS —
161 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_5; rv:1.9.2.20) Gecko/7077-06-17 20:33:05.690491 Firefox/11.0 Firefox 11.0 macOS —
162 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/7310-11-05 14:11:24.214844 Firefox/3.6.16 Firefox 3.6.16 Linux —
163 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/ Firefox/4.0 Firefox 4.0 Linux —
164 Mozilla/5.0 (Windows CE; uz-UZ; rv:1.9.0.20) Gecko/8898-10-26 02:37:46.402893 Firefox/8.0 Firefox 8.0 Windows CE —
165 Mozilla/5.0 (Windows NT 6.0; ayc-PE; rv:1.9.2.20) Gecko/7407-05-26 16:15:35.342346 Firefox/3.6.8 Firefox 3.6.8 Windows —
166 Mozilla/5.0 (Windows; U; Windows NT 6.1; tr; rv:1.9.1.9) Gecko/20100315 Firefox/3.5.9 GTB7.1 Firefox 3.5.9 Windows —
167 Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.8) Gecko/20100804 Gentoo Firefox/3.6.8 Firefox 3.6.8 Gentoo —
168 Mozilla/5.0 (Windows; U; Windows NT 6.0; zh-TW; rv:1.9.1) Gecko/20090624 Firefox/3.5 (.NET CLR 3.5.30729) Firefox 3.5 Windows —
169 Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1) Gecko/20090612 Firefox/3.5 (.NET CLR 4.0.20506) Firefox 3.5 Windows —
170 Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.1.16) Gecko/20101130 Firefox/3.5.16 GTB7.1 Firefox 3.5.16 Windows —
171 Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.1) Gecko/20100122 firefox/3.6.1 firefox 3.6.1 Linux —
172 Mozilla/5.0 (X11; Linux i686; rv:2.0) Gecko/20100101 Firefox/3.6 Firefox 3.6 Linux —
173 Mozilla/5.0 (X11; U; Linux i686; ja-JP; rv:1.9.1.8) Gecko/20100216 Fedora/3.5.8-1.fc12 Firefox/3.5.8 Firefox 3.5.8 Fedora —
174 Mozilla/5.0 (Windows; U; Windows NT 5.1; zh-TW; rv:1.9.2.4) Gecko/20100611 Firefox/3.6.4 GTB7.0 ( .NET CLR 3.5.30729) Firefox 3.6.4 Windows —
175 Mozilla/5.0 (Windows; U; Windows NT 6.1; it; rv:1.9.2.3) Gecko/20100401 Firefox/3.6.3 Firefox 3.6.3 Windows —
176 Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 Firefox 3.5.3 Windows —
177 Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2a1pre) Gecko/20090428 Firefox/3.6a1pre Firefox 3.6a1pre Linux —
178 Mozilla/5.0 (X11; U; Linux x86_64; pl-PL; rv:1.9.2.13) Gecko/20101206 Ubuntu/10.04 (lucid) Firefox/3.6.13 Firefox 3.6.13 Ubuntu —
179 Mozilla/5.0 (X11; U; Linux i686; es-ES; rv:1.9.1.9) Gecko/20100317 SUSE/3.5.9-0.1 Firefox/3.5.9 Firefox 3.5.9 SUSE —
180 Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 Firefox 3.5.2 Linux —
181 Mozilla/5.0 (Windows; U; Windows NT 6.1; pt-BR; rv:1.9.2.8) Gecko/20100722 Firefox/3.6.8 GTB7.1 Firefox 3.6.8 Windows —
182 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b7) Gecko/20100101 Firefox/4.0b7 Firefox 4.0b7 Windows —
183 Mozilla/5.0 (Windows; U; Windows NT 6.0; es-MX; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 (.NET CLR 3.5.30729) Firefox 3.5.2 Windows —
184 Mozilla/5.0 (Windows; U; Windows NT 5.1; en; rv:1.9.1.13) Gecko/20100914 Firefox/3.6.16 Firefox 3.6.16 Windows —
185 Mozilla/5.0 (Windows; U; Windows NT 5.1; hu; rv:1.9.1.11) Gecko/20100701 Firefox/3.5.11 Firefox 3.5.11 Windows —
186 Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.2.10) Gecko/20100915 Ubuntu/10.04 (lucid) Firefox/3.6.10 Firefox 3.6.10 Ubuntu —
187 Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.16) Gecko/20101130 AskTbPLTV5/3.8.0.12304 Firefox/3.5.16 (.NET CLR 3.5.30729) Firefox 3.5.16 Windows —
188 Mozilla/5.0 (X11; U; Linux i686; es-ES; rv:1.9.2.13) Gecko/20101206 Ubuntu/9.10 (karmic) Firefox/3.6.13 Firefox 3.6.13 Ubuntu —
189 Mozilla/5.0 (X11; U; Linux i686; de; rv:1.9.1.8) Gecko/20100214 Ubuntu/9.10 (karmic) Firefox/3.5.8 Firefox 3.5.8 Ubuntu —
190 Mozilla/5.0 (Windows; U; Windows NT 6.1; ja; rv:1.9.2.4) Gecko/20100611 Firefox/3.6.4 GTB7.1 Firefox 3.6.4 Windows —
191 Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.15) Gecko/20110303 Firefox/3.6.15 (.NET CLR 3.5.30729) Firefox 3.6.15 Windows —
192 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:2.0b11pre) Gecko/20110128 Firefox/4.0b11pre Firefox 4.0b11pre Windows —
193 Mozilla/5.0 (X11; U; Linux i686; it-IT; rv:1.9.0.2) Gecko/2008092313 Ubuntu/9.04 (jaunty) Firefox/3.5 Firefox 3.5 Ubuntu —
194 Mozilla/5.0 (Windows; U; Windows NT 6.0; pl; rv:1.9.1.2) Gecko/20090729 Firefox/3.5.2 GTB7.1 ( .NET CLR 3.5.30729) Firefox 3.5.2 Windows —
195 Mozilla/5.0 (X11; U; Linux ppc; fr; rv:1.9.2.12) Gecko/20101027 Ubuntu/10.10 (maverick) Firefox/3.6.12 Firefox 3.6.12 Ubuntu —
196 Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.2.4) Gecko/20100527 Firefox/3.6.4 (.NET CLR 3.5.30729) Firefox 3.6.4 Windows —
197 Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.13) Gecko/20101223 Gentoo Firefox/3.6.13 Firefox 3.6.13 Gentoo —
198 Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.9.2.10) Gecko/20100914 Firefox/3.6.10 Firefox 3.6.10 Linux —
199 Mozilla/5.0 (Windows NT 5.1; U; zh-cn; rv:1.8.1) Gecko/20091102 Firefox/3.5.5 Firefox 3.5.5 Windows —
200 Mozilla/5.0 (Windows; Windows NT 5.1; en-US; rv:1.9.2a1pre) Gecko/20090402 Firefox/3.6a1pre Firefox 3.6a1pre Windows —

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