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.

1907 entries · Last updated Jun 6, 2026, 09:11:24 AM

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Firefox User-Agents — updated Jun 6, 2026, 09:11:24 AM

253 results
# Raw User-Agent Browser OS Device
101 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:146.0) Gecko/20100101 Firefox/146.0 Firefox 146.0 Windows —
102 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/135.0 Firefox 135.0 Windows —
103 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:139.0) Gecko/20100101 Firefox/139.0 Firefox 139.0 macOS —
104 Mozilla/5.0 (Windows NT 6.1; WOW64; rv:40.0) Gecko/20100101 Firefox/40.1 Firefox 40.1 Windows —
105 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:136.0) Gecko/20100101 Firefox/136.0 Firefox 136.0 Ubuntu —
106 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:140.0) Gecko/20100101 Firefox/140.0 Firefox 140.0 macOS —
107 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_5; rv:1.9.2.20) Gecko/6524-03-31 13:36:56.606049 Firefox/3.8 Firefox 3.8 macOS —
108 Mozilla/5.0 (Windows NT 5.2; sc-IT; rv:1.9.0.20) Gecko/5913-01-28 00:15:46.498611 Firefox/8.0 Firefox 8.0 Windows —
109 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:123.0) Gecko/20100101 Firefox/123 Firefox 123 Windows —
110 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:148.0) Gecko/20100101 Firefox/148.0 Firefox 148.0 Windows —
111 Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0 Firefox 140.0 Linux —
112 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.5; rv:133.0) Gecko/20100101 Firefox/133.0 Firefox 133.0 macOS —
113 Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:114.0) Gecko/20100101 Firefox/114.0 Firefox 114.0 Ubuntu —
114 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.2; rv:134.0) Gecko/20100101 Firefox/134.0 Firefox 134.0 macOS —
115 Mozilla/5.0 (Windows NT 10.0; WOW64; rv:47.0) Gecko/20100101 Firefox/47.0 Firefox 47.0 Windows —
116 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0 Firefox 138.0 macOS —
117 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:148.0) Gecko/20100101 Firefox/148.0 Firefox 148.0 macOS —
118 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/4454-11-10 02:39:09.641754 Firefox/3.6.7 Firefox 3.6.7 Linux —
119 Mozilla/5.0 (Windows NT 4.0; pl-PL; rv:1.9.1.20) Gecko/4844-12-19 13:54:13.028809 Firefox/3.6.16 Firefox 3.6.16 Windows —
120 Mozilla/5.0 (Windows NT 5.0; hak-TW; rv:1.9.2.20) Gecko/5613-07-20 00:31:34.529388 Firefox/3.6.4 Firefox 3.6.4 Windows —
121 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/2055-01-03 20:58:33.754798 Firefox/13.0 Firefox 13.0 Linux —
122 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:147.0) Gecko/20100101 Firefox/147.0 Firefox 147.0 Windows —
123 Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/118.0 Firefox 118.0 Windows —
124 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/6295-10-18 12:26:13.126312 Firefox/3.6.16 Firefox 3.6.16 Linux —
125 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:144.0) Gecko/20100101 Firefox/144.0 Firefox 144.0 Windows —
126 Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/119.0 Firefox 119.0 Linux —
127 Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/4426-07-09 19:40:57.768585 Firefox/3.6.3 Firefox 3.6.3 Linux —
128 Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0 Firefox 115.0 Linux —
129 Mozilla/5.0 (X11; Linux i686; rv:1.9.7.20) Gecko/5430-10-31 02:10:59.040573 Firefox/3.8 Firefox 3.8 Linux —
130 Mozilla/5.0 (watchTowr; Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0 Firefox 84.0 Windows —
131 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/ Firefox/3.6.5 Firefox 3.6.5 Linux —
132 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0 Firefox 143.0 Windows —
133 Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:135.0) Gecko/20100101 Firefox/135.0 Firefox 135.0 Ubuntu —
134 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/117.0 Firefox 117.0 Windows —
135 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:126.0) adbeat.com/policy Gecko/20100101 Firefox/126.0 Firefox 126.0 Windows —
136 Mozilla/5.0 (X11; Linux x86_64; rv:104.0) Gecko/20100101 Firefox/104.0 Firefox 104.0 Linux —
137 Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/2950-11-17 09:10:15.469269 Firefox/3.8 Firefox 3.8 Linux —
138 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:114.0) Gecko/20100101 Firefox/114.0 Firefox 114.0 Windows —
139 Mozilla/5.0 (X11; Linux i686; rv:114.0) Gecko/20100101 Firefox/114.0 Firefox 114.0 Linux —
140 Mozilla/5.0 (Macintosh; Intel Mac OS X 14.5; rv:128.0) Gecko/20100101 Firefox/128.0 Firefox 128.0 macOS —
141 Mozilla/5.0 (Windows NT 6.1; Win64; rv:68.0) Gecko/20100101 Firefox/68.0 Firefox 68.0 Windows —
142 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:53.0) Gecko/20100101 Firefox/53.0 Firefox 53.0 macOS —
143 Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:130.0) Gecko/20100101 Firefox/130.0 Firefox 130.0 Windows —
144 Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 Firefox 138.0 Linux —
145 Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/135.0 Firefox 135.0 macOS —
146 Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0 Firefox 91.0 Linux —
147 Mozilla/5.0 (Macintosh; PPC Mac OS X 10_11_9; rv:1.9.6.20) Gecko/9828-08-10 19:40:40.005402 Firefox/3.6.20 Firefox 3.6.20 macOS —
148 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 —
149 Mozilla/5.0 (X11; Linux i686; rv:1.9.7.20) Gecko/3708-11-26 20:25:25.906448 Firefox/3.6.11 Firefox 3.6.11 Linux —
150 Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_9_4; rv:1.9.4.20) Gecko/2189-03-10 14:31:26.013124 Firefox/3.6.8 Firefox 3.6.8 macOS —

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