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 (Macintosh; Intel Mac OS X 10.15; rv:90.0) Gecko/20100101 Firefox/90.0 636
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:90.0) Gecko/20100101 Firefox/90.0 603
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:93.123.42.249]
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:90.0) Gecko/20100101 Firefox/90.0 498
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.178.126]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.190.246]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.48]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.242]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.164]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.34]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.216]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.112]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.29]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.214]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.186]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.66]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.170]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.56]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.78]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.109]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.82]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.22]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.10]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.141]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.227]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.221]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.101]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.248]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.67]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.246]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.76]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.108]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.50]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.244]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.157]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.243]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.40]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.113]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.65]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.38]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.203]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.98]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.79]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.177]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.126]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.87]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.235]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.218]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.68]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.120]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.211]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.35]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.238]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.8]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.14]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.194]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.232]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.52]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.187]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.132]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.31]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.58]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.93]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.125]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.151]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.9]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.184]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.207]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.51]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.103]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.188]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.42]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.92]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.106]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.165.69]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:31.13.208.88]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:109.0) Gecko/20100101 Firefox/90.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:87.120.187.250]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:170.81.231.125]
• Mozilla/5.0 (Windows NT 6.1; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:146.241.58.180]
• Mozilla/5.0 (Windows NT 6.1; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:146.241.32.119]
• Mozilla/5.0 (Windows NT 6.1; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:146.241.83.254]
• Mozilla/5.0 (Windows NT 6.1; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:146.241.53.114]
• Mozilla/5.0 (Windows NT 6.1; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:146.241.77.254]
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:82.48.236.174]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20210101 Firefox/90.0
• Mozilla/5.0 (Android 8.1.0; Mobile; rv:90.0) Gecko/90.0 Firefox/90.0 [ip:5.171.200.114]
• Mozilla/5.0 (Android 8.1.0; Mobile; rv:90.0) Gecko/90.0 Firefox/90.0 [ip:5.171.191.26]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 LLfHOCLh-18 LLfHOCLh-18 Firefox/90.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 Agency/100.8.1587.88
• Mozilla/5.0 (Android 9; Mobile; rv:90.0) Gecko/90.0 Firefox/90.0 [ip:2.198.133.145]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:90.0) Gecko/20100101 Firefox/90.0 Viewer/91.9.4968.69
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/90.0
• Mozilla/5.0 (Windows NT 6.2; rv:90.0) Gecko/20100101 Firefox/90.08961286084654101074487912216142879
• Mozilla/5.0 (Windows NT 10.0; WOW64; rv:90.0) Gecko/20100101 Firefox/90.0.0
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0 [ip:79.19.184.27]
• Mozilla/5.0 (X11; blackPanther OS; Linux x86_64; rv:90.0) Gecko/20100101 Firefox/90.0,gzip(gfe)
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; en-US; rv:90.0) Gecko/20107101 Firefox/90.0