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; U; PPC Mac OS X 10 9_2; rv:1.9.6.20) Gecko/ Firefox/11.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_1) Gecko/20021106 Firefox/11.0
• Mozilla/5.0 (Linux i686; rv:11.0) Gecko/201546 Firefox/11.0
• Mozilla/5.0 (Windows NT 6.2; rv:11.0) Gecko/2020725 Firefox/11.0
• Mozilla/5.0 (Windows NT 5.01; quz-PE; rv:1.9.1.20) Gecko/2022-01-01 12:46:36 Firefox/11.0
• Mozilla/5.0 (Linux x86_64; rv:11.0) Gecko/2011412 Firefox/11.0
• Mozilla/5.0 (Linux x86_64; rv:11.0) Gecko/201081 Firefox/11.0
• Mozilla/5.0 (Linux x86_64; rv:11.0) Gecko/20191022 Firefox/11.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.5; rv:11.0) Gecko/20100101 Firefox/11.0.9
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.8; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.10.7; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.9; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.5; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.9; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.6; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.3; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5.5; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.8; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.9.4; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Windows NT 5.0; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5.9; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5.0; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.2; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.1; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; PPC Mac OS X 10.8.7; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.9; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.5; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.4; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.3; rv:11.0) Gecko/20100101 Firefox/11.0.2
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5.1; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.9; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.9.1; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.2; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (X11; Linux x86_64; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.2; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5.8; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Windows NT 6.2; Win64; x64; rv:11.0) Gecko/20100101 Firefox/11.0.9
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.9.2; rv:11.0) Gecko/20100101 Firefox/11.0.9
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.3; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9.4; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6.6; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.1; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Windows NT 5.2; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.9; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6.0; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.2; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.1; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.9; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.9.7; rv:11.0) Gecko/20100101 Firefox/11.0.9
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.9; rv:11.0) Gecko/20100101 Firefox/11.0.2
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.0; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.3; rv:11.0) Gecko/20100101 Firefox/11.0.2
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.6; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.5; rv:11.0) Gecko/20100101 Firefox/11.0.2
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.10.5; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5.0; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.9; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.2; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Windows NT 6.2; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.0; rv:11.0) Gecko/20100101 Firefox/11.0.2
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5.5; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.1; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Windows NT 6.3; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.2; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.7; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Windows NT 6.2; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0.2
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.10.3; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Windows NT 6.1; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.7.1; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.10.3; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9.8; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.8.2; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5.8; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Windows NT 6.1; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Windows NT 5.2; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.5.2; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5.8; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Windows NT 5.1; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9.1; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (X11; Linux i686; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6.1; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.6; rv:11.0) Gecko/20100101 Firefox/11.0.0
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.9.7; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.4; rv:11.0) Gecko/20100101 Firefox/11.0.9
• Mozilla/5.0 (Windows NT 5.2; WOW64; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.10.6; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.9; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9.0; rv:11.0) Gecko/20100101 Firefox/11.0.5
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.3; rv:11.0) Gecko/20100101 Firefox/11.0.4
• Mozilla/5.0 (Windows NT 5.0; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Windows NT 5.0; Win64; x64; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10.5; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.4; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.0; rv:11.0) Gecko/20100101 Firefox/11.0.9
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.8.3; rv:11.0) Gecko/20100101 Firefox/11.0.7
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5.2; rv:11.0) Gecko/20100101 Firefox/11.0.8
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6.8; rv:11.0) Gecko/20100101 Firefox/11.0.6
• Mozilla/5.0 (Windows NT 6.3; rv:11.0) Gecko/20100101 Firefox/11.0.1
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5.0; rv:11.0) Gecko/20100101 Firefox/11.0.3
• Mozilla/5.0 (Macintosh; Intel Mac OS X 10.7.6; rv:11.0) Gecko/20100101 Firefox/11.0.2