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 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0 [ip:200.189.118.30]
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Thunderbird/73.0 Lightning/73.0b2
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0/ihcA1ctP-41
• Mozilla/5.0 (Windows NT 10.0; WOW64; rv:70.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:73.0; KlaxoonBot/1.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1375953674
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_3; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_1; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Android 4.4.4; Mobile; rv:73.0) Gecko/73.0 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_4; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 66782710
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_5; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0::TEST_11111111::/.josie/.
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_3; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_2; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Android 11; Mobile; rv:73.0) Gecko/73.0 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_0_1; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_2; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_2; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_4; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_2; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_5; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_1; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_1; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_1; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_3; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_1; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1233294515
• Mozilla/5.0 (Windows NT 10.0; WOW64; rv:54.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0 Firefox Generic
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0 Firefox Generic
• Mozilla/5.0 (X11; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0 root@user-agent.ipmap.io
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1261826347
• Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:73.0; ahfdkjmrxixvtjkbdxnckhakrawdowepktjykpsbzjrpkfjexnjaczwtyrhgfhmn) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1220843360
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:61.0) Gecko/20100101 Firefox/73.0 WhiteHat Security
• Mozilla/5.0 (Windows NT 10.0; rv:73.0 ) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1861162926
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 929996704
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 214802094
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:73.0) Gecko/20100101 Firefox/73.0 Firefox Generic
• Mozilla/5.0 (Windows NT 6.3; WOW64; .NET CLR 2.0.50727; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1495441226
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.0; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:73.0) Gecko/20100101 Thunderbird/73.0 Lightning/73.0b2
• Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:73.0) Gecko/20100101 Thunderbird/73.0 Lightning/73.0b1
• Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:73.0) Gecko/20100101 null Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Thunderbird/73.0 Lightning/73.0b1
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Thunderbird/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 132836121
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13.6) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Android 9; Mobile; rv:73.0) Gecko/73.0 Firefox/73.0 QwantMobile/4.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:81.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 156007727
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1743406078
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:61.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.2; WOW64; rv:80.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; en-US) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.3; Win64; x64) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1074554680
• Mozilla/5.0 (X11; Linux x86_64) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.12; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; WOW64; rv:64.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (X11; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0 748516
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0 MEMORITY_GEODIS_IWA
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:73.0) Gecko/20100101 Firefox/73.0\x09Firefox Generic
• Mozilla/5.0 (Android 6.0; Mobile; rv:73.0) Gecko/73.0 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.2; Win64; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.14; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.13; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0;secssobrowser) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:75.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.1; Win64; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:76.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.2; WOW64; rv:21.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:56.0) Gecko/20100101 Firefox/73.0.1
• Mozilla/5.0 (X11; Fedora; Linux; rv:73.0.1) Gecko/20100101 Firefox/73.0.1
• Mozilla/5.0 (Windows NT 6.3; WOW64; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0\x09Firefox Generic
• Mozilla/5.0 (Windows NT 10.0; rv:73.0 ) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1019221721
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.10; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; Win64; x64; WOW64; rv:41.0) Gecko/20100101 Firefox/73.0 (x64 de) Anonymisiert durch AlMiSoft Browser-Maulkorb 40913843
• Mozilla/5.0 (X11; SunOS sun4u; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.2; WOW64; rv:73.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 10.0; rv:73.0) Gecko/20100101 Firefox/73.0 anonymized by Abelssoft 1040662623
• Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:69.0) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.2; en-US) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.2; Win64; x64) Gecko/20100101 Firefox/73.0
• Mozilla/5.0 (Windows NT 6.3; Win64; rv:73.0) Gecko/20100101 Firefox/73.0