For more information, please visit the following pages:

• Firefox
• Mozilla Foundation
• Gecko

Latest user agents (if you are looking for complete list, download it here):

• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/10324877 Firefox/138.0 [ip:5.91.73.242]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 Herring/90.1.1284.4
• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/17783231 Firefox/138.0 [ip:5.91.75.151]
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/23246945 Firefox/138.0 [ip:5.91.75.151]
• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/24366523 Firefox/138.0 [ip:93.44.196.155]
• Mozilla/5.0 (Android 10; Mobile; rv:138.0) Gecko/18683332 Firefox/138.0
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/12970748 Firefox/138.0 [ip:93.149.133.187]
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/11636012 Firefox/138.0
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/13827503 Firefox/138.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:90.89.10.7]
• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/13579384 Firefox/138.0
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/18384846 Firefox/138.0
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/20270960 Firefox/138.0
• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/18143398 Firefox/138.0
• Mozilla/5.0 (Android 10; Mobile; rv:138.0) Gecko/26721907 Firefox/138.0
• Mozilla/5.0 (Android 11; Mobile; rv:68.0) Gecko/68.0 Firefox/138.0
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/18914188 Firefox/138.0
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:78.211.165.157]
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/20775232 Firefox/138.0
• Mozilla/5.0 (Android 10; Mobile; rv:138.0) Gecko/17832603 Firefox/138.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:40.114.182.96]
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/24964499 Firefox/138.0
• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/22742866 Firefox/138.0
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:178.197.214.27]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:193.207.182.8]
• Mozilla/5.0 (Android 10; Mobile; rv:138.0) Gecko/15474898 Firefox/138.0
• Mozilla/5.0 (Android 11; Mobile; rv:138.0) Gecko/14961380 Firefox/138.0
• Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:88.164.181.93]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 AtContent/98.5.9344.45
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/11735330 Firefox/138.0 [ip:176.201.59.165]
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/22091614 Firefox/138.0
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:217.105.56.45]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:213.78.180.196]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:193.207.101.106]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:37.161.77.117]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:212.216.221.143]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:78.209.227.224]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:93.39.144.157]
• Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:216.243.39.3]
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/16541738 Firefox/138.0
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:79.56.174.50]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.38.238.60]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:79.30.150.46]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:217.140.214.80]
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:5.90.39.187]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:92.40.111.80]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:94.25.224.3]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:92.40.111.77]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:92.40.111.56]
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:91.129.109.78]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:147.53.174.123]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:212.171.93.145]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:93.222.180.100]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:5.146.248.60]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:92.116.84.63]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:77.2.180.213]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:147.53.176.157]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.47.102.101]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:2.49.86.116]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:216.128.26.32]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.44.8.229]
• Mozilla/5.0 (Android 14; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:185.103.225.130]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:87.16.17.174]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:101.56.165.208]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:37.208.68.177]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.32.127.56]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:217.140.213.243]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:99.250.99.146]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:95.117.9.193]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:212.116.231.13]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.35.203.165]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:37.165.226.28]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:146.241.196.61]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.46.7.145]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:151.46.77.113]
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:176.5.185.7]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:217.238.223.76]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:188.47.81.190]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:147.53.180.134]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:190.64.18.162]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:79.224.49.113]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 OpenWave/93.4.3828.32
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:95.114.164.252]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:146.241.197.208]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:93.196.197.114]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:2.44.137.155]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:93.44.196.128]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:5.77.73.25]
• Mozilla/5.0 (X11; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:37.183.88.20]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:109.52.204.244]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:62.158.188.16]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:93.131.173.29]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:92.37.48.126]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:146.241.220.122]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:147.53.185.186]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:213.35.176.83]
• Mozilla/5.0 (Android 12; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:151.19.190.232]
• Mozilla/5.0 (Android 13; Mobile; rv:138.0) Gecko/138.0 Firefox/138.0 [ip:37.171.116.41]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:5.179.173.205]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0 [ip:37.182.55.14]