For more information, please visit the following pages:

• Mozilla
• Mozilla Foundation
• Gecko

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

• Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070725
• Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.4b) Gecko/20030507
• Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.7.7) Gecko/20050414
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1a) Gecko/20020619
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1a) Gecko/20020611
• Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:0.9.3) Gecko/20010802
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1b) Gecko/20020722
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1a) Gecko/20020610
• Mozilla/5.0 (X11; U; HP-UX 9000/785; en-US; rv:1.3) Gecko/20030321
• Mozilla/5.0 (X11; U; Linux i686; fr-FR; rv:1.0.0) Gecko/20020623 Debian/1.0.0-0.woody.1
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20021003
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021130
• Mozilla/5.0 (Windows; U; Windows NT 5.0; fr-FR; rv:1.7.3) Gecko/20040910
• Mozilla/5.0 (Windows; U; Windows NT 5.1; fr-FR; rv:1.7.3) Gecko/20040910
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.6) Gecko/20040114
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en-US; rv:1.1a) Gecko/20020610
• Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.4) Gecko/20030624
• Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.7.12) Gecko/20050915
• Mozilla/5.0 (Windows NT 5.1; U; en; rv:1.7.5) Gecko/20041110
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2.1) Gecko/20021208 Debian/1.2.1-2
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.6) Gecko/20050319
• Mozilla/5.0 (X11; U; Linux i386; en-US; rv:1.1) Gecko/20020826
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.2) Gecko/20040804
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.8) Gecko/20071022
• Mozilla/5.0 (Windows; U; WinNT4.0; de-AT; rv:1.1) Gecko/20020826
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.4) Gecko/20030624
• Mozilla/5.0 (Windows; U; Windows NT 5.0; de-AT; rv:1.7.8) Gecko/20050511
• Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Mozilla/4.8 [en] (Windows NT 5.1; U)
• Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.0.0) Gecko/20020623 Debian/1.0.0-0.woody.1
• Mozilla/5.0 (Windows; U; Windows NT 5.0; de-AT; rv:1.7b) Gecko/20040421
• Mozilla/5.0 (X11; U; Linux i686; it-IT; rv:1.1) Gecko/20020826
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:0.9.7) Gecko/20011221
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.7.12) Gecko/20050923 Fedora/1.7.12-1.5.1
• Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7) Gecko/20060120
• Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.2) Gecko/20021126
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.7.10) Gecko/20050727
• Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.10) Gecko/20050716
• Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7.7) Gecko/20050421
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.2.1) Gecko/20021204
• Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.3b) Gecko/20030210
• Mozilla/5.0 (X11; U; Linux i686; rv:1.7.8) Gecko/20060628 Debian/1.7.8-1sarge7.1
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.2b) Gecko/20021016
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.8b) Gecko/20050217
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.7) Gecko/20050427 Red Hat/1.7.7-1.1.3.4
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.1) Gecko/20020826
• Mozilla/5.0 (Windows; U; Windows NT 5.0; fr-FR; rv:1.0.0) Gecko/20020530
• Mozilla/5.0 (X11; U; SunOS sun4u; de-DE; rv:1.7) Gecko/20070606
• Mozilla/5.0 (Windows; U; Windows NT 5.1; hu; rv:1.6) Gecko/20040113
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1a2) Gecko/20060512
• Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.8a6) Gecko/20050111
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.11) Gecko/20050729
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030908 Debian/1.4-4
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20051010 Debian/1.7.12-0ubuntu2
• Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.2.1) Gecko/20021217
• Mozilla/5.0 (X11; U; Linux i686; es-AR; rv:1.2.1) Gecko/20021130
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.3.1) Gecko/20030425
• Mozilla/5.0 (Macintosh; U; PPC; en-US; rv:1.2b) Gecko/20021016
• Mozilla/5.0 (X11; U; Linux i686; hu; rv:1.7.3) Gecko/20050130
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030818
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.0.0) Gecko/20020530
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.1) Gecko/20020826
• Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.11) Gecko/20050728
• Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.7.3) Gecko/20040910
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:0.9.8) Gecko/20020204
• Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8b) Gecko/20050217
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050921
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050702
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.7) Gecko/20040616
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020830
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.3) Gecko/20030312
• Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.7.8) Gecko/20050511
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2) Gecko/20010809
• Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.0rc2) Gecko/20020510
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.2) Gecko/20040803
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.3) Gecko/20041007 Debian/1.7.3-5
• Mozilla/5.0 (X11; U; Linux ppc; en-US; rv:1.4) Gecko/20030714 Debian/1.4-2
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.6) Gecko/20040113
• Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.1) Gecko/20021223
• Mozilla/5.0 (X11; U; Linux i686; de-AT; rv:1.7.2) Gecko/20040906
• Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.6) Gecko/20040113
• Mozilla/5.0 (Windows; U; Windows NT 5.0; de-AT; rv:1.3b) Gecko/20030210
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020913 Debian/1.1-1
• Mozilla/5.0 (Windows; U; Windows NT 5.1; de-AT; rv:1.7b) Gecko/20040316
• Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.2.1) Gecko/20021204
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0rc3) Gecko/20020529 Debian/1.0rc3-1
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.2b) Gecko/20021016
• Mozilla/5.0 (Windows; U; Windows NT 5.0; fr-FR; rv:1.4) Gecko/20030624
• Mozilla/5.0 (OS/2; U; Warp 4.5; de-DE; rv:1.7.5) Gecko/20050523
• Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.0.0) Gecko/20020611
• Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5a) Gecko/20030718
• Mozilla/5.0 (X11; U; HP-UX 9000/785; en-US; rv:1.0.0) Gecko/20020605
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.2.1) Gecko/20010901
• Mozilla/5.0 (Windows NT 5.1; U; de; rv:1.7.5) Gecko/20041110
• Mozilla/5.0 (X11; U; Linux i586; de-AT; rv:1.4) Gecko/20030908 Debian/1.4-4
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.5b) Gecko/20030827
• Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050923
• Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.11) Gecko/20071206
• Mozilla/5.0 (X11; U; Linux i586; en-US; rv:1.2b) Gecko/20021016
• Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.3b) Gecko/20030204
• Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.7) Gecko/20050502