User-Agent Strings - Firefox - Full

We keep only the most current and major releases in the main page. This is the complete list of all Firefox strings that we have ever found or received - including those on the main page.

Firefox

Phoenix is dead - long live Firebird. Firebird is dead - long live Firefox. Firebird/Phoenix has morph'd into Firefox. The Mozilla roadmap shows Firefox as the browser for the next generation of Mozilla. Essentially (if we can paraphrase a very big page) the mozilla design team are saying that they will develop a set of components (browser, mail client, editor (composer) and others) which will work well together but will have their own development priorities and timeframes, rather than the current monolithic Mozilla structure. The historic Phoenix and Firebird strings are still on the main page 'cos we like to remind 'em of their humble beginnings. Note: For Firefox 3 and perhaps after, Minefield will remain the development version and always have 'pre' in the string, whereas is the release leg and will not have 'pre' in the string - so there you go. Shiretoko named for the Japanese Peninsula (a UN world heritage site) seems to be the new development release leg - replacing GranParadiso?

Don't forget the Mozilla SeaMonkey project about which which J. Reynolds writes:

Curious

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1a2pre) Gecko/2008073000 Shredder/3.0a2pre ThunderBrowse/3.2.1.8

Explanation: The UA string from Thunderbird nightly build of Version 3 (codenamed Shredder) with an embedded browser add-in called ThunderBrowse. String from Jake Wasdin - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.10) Gecko/20050716 Thunderbird/1.0.6

Explanation: No idea what to do with this one since it's the UA string from Thunderbird when it reads an embedded email image from a web location. String from Zonjai Nezba - thanks.

Development Versions

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:2.0a1pre) Gecko/2008060602 Minefield/4.0a1p

Explanation: Briefly seen in the wild - Minefield alpha FF4 (no longer available). String from Jake Wasdin - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1b1pre) Gecko/20080916020338 Minefield/3.1b1pre

Explanation: Minefield (Firefox v3.1b1pre nightly build) on Linux. Note: date format change for Gecko version. String from Jake Wasdin - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1a2) Gecko/20080829071937 Shiretoko/3.1a2

Explanation: Shiretoko (Firefox v3.1) on Linux. String from Jake Wasdin - thanks.

Mozilla/5.0 (Windows; U; Windows NT 6.0 x64; en-US; rv:1.9pre) Gecko/2008072421 Minefield/3.0.2pre

Explanation: Minefield (Firefox v3) on Windows Server 2008. String from Julius Thyssen - thanks.

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9a7)
 Gecko/2007080210 GranParadiso/3.0a7

Explanation: GranParadiso 1.9 alpha 7 (Firefox Pre-release v3) on Windows Vista. String from Joseph Christianson - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9b2pre) Gecko/2007120505 Minefield/3.0b2pre

Explanation: Mozilla Minefield (Firefox development) 3.0a9 (pre beta 2) nightly build (12/05/2007) on XP. Firefox 3 creeps closer. String from Keith Morikado - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a9pre) Gecko/2007100205 Minefield/3.0a9pre

Explanation: Mozilla Minefield (Firefox development) 3.0a9 (Alpha) nightly build on XP. Firefox 3 creeps closer. String from Kyle Elbert - thanks.

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9a4pre)
Gecko/20070402 Minefield/3.0a4pre

Explanation: Mozilla Minefield (Firefox) 3.0a4 (Alpha) nightly build on Vista with SP7 (just kidding it's SP6). String from anonymous - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a2pre)
Gecko/20070206 Minefield/3.0a2pre

Explanation: Mozilla Minefield (Firefox) 3.0a2 (Alpha) nightly build on XP SP2. Jason says basic browser is solid but most extensions do not work. String from Jason Price - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20061204 GranParadiso/3.0a1

Explanation: Mozilla GranParadiso (Firefox) 3.0a1 (Alpha) on XP SP2. Alex tells us its good enough for day-to-day usage - if your needs are modest. Must admit the name is better than Minefield! Man they do like to pay around with names - must have 1,000 marketing people in the team. String from Alex Williams - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.2 x64; en-US; rv:1.9a1) Gecko/20061007 Minefield/3.0a1

Explanation: Mozilla Minefield(Firefox) 3.0a1 (Alpha) 64-bit built from 20061007 CVS running on Windows XP 64-bit edition SP1. Jason tells us its slow and with no plugins - so don't all rush to get one. String from Jason Mayfield-Lewis - thanks.

Mozilla/5.0 (X11; U; Linux x86_64; de; rv:1.8.1.1) Gecko/20061223 BonEcho/2.0.0.

Explanation: Firefox 2.0 on Debian - apparently as a result of the dispute that caused IceWeasel debian have decided to rebrand the basic firefox as BonEcho - but there is a flag that you can use when buiding from source to use the standard firefox string (mozbranding) Details here. String from Sebastian Knust - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20060319 Firefox/2.0a1

Explanation: Firefox 2.x (aka Bonecho alpha 1) which you can get from this site. String from Jonathan McCormack - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.2 x64; en-US; rv:1.9a1) Gecko/20060214 Firefox/1.6a1

Explanation: Firefox 1.6 (aka Deer Park Alpha 2) native 64-bit version on XP x64 (which you can get from this site) on an AMD Athlon X2. String from Carl Karlsson - thanks.

Mozilla/5.0 (BeOS; U; BeOS BePC; en-US; rv:1.9a1) Gecko/20051002 Firefox/1.6a1

Explanation: Firefox 1.6 (aka Deer Park Alpha 2) on YellowTab Zeus 1.1 under BeOS no less . String from Jonathan McCormack - thanks. BTW this appears to have been built from CVS source not released versions.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9a1) Gecko/20051102 Firefox/1.6a1

Explanation: Firefox 1.6 (aka Deer Park Alpha 2) on windows 2K. String from Joseph Christianson - thanks. BTW this appears to have been built from CVS source not released versions.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8) Gecko/20051111 Firefox/1.5

Explanation: Firefox 1.5 (aka 1.5 RC3) on XP SP2. String from Deyan Mavrov - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041103 Firefox/1.0RC2

Explanation: Firefox 1.0 Release Candidate 2 on Win XP Pro. String from Dennis Henderson - thanks.

Releases - v3 Series

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.3) Gecko/2008092417 Firefox/3.0.3

Explanation: Firefox 3.0.3 on XP. String from Noah Jacobson - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-GB; rv:1.9.0.2) Gecko/2008091620 Firefox/3.0.2

Explanation: Firefox 3.0.2 on XP (UK english variation). String from Chris Douglas - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.1) Gecko/2008070206 Firefox/3.0.1

Explanation: Firefox 3.0.1 on Debian Lenny with kernel 2.6.24-1. String from Deyan Marvov - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0

Explanation: Firefox 3.0 on Windows XP. String from Mike Michaelson and Gary Pustizzi - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b5) Gecko/2008050509 Firefox/3.0b5

Explanation: OK so its not a release but the GrandParadiso/Minefield tags are dropped in favour of straight Firefox. Firefox 3.0 beta 5 on Ubuntu Hardy Heron (8.04 LTS) on an Acer laptop. String from John Murphy - thanks.

Releases - v2 Series

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.13) Gecko/20080208 Mandriva/2.0.0.13-1mdv2008.1 (2008.1) Firefox/2.0.0.13

Explanation: Firefox 2.0.0.13 included with Mandriva 2008.1 Spring. String from Jake Wasdin - thanks.

Mozilla/5.0 (X11; U; Linux x86_64; sv-SE; rv:1.8.1.12) Gecko/20080207 Ubuntu/7.10 (gutsy) Firefox/2.0.0.12

Explanation: Firefox 2.0.0.12 on running on 64bit Ubuntu 7.10. String from Joar Bagge - thanks.

Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.8.1.11) Gecko/20080118 Firefox/2.0.0.11

Explanation: Firefox V.2.0.0.11 on Solaris 10 (UltraSparc). String from Milan Kupcevic - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-GB; rv:1.8.1.11) Gecko/20071204 Ubuntu/7.10 (gutsy) Firefox/2.0.0.11

Explanation: Firefox V.2.0.0.11 for Ubuntu Linux 7.10 Gutsy. String from Bilal Khan - thanks.

Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11

Explanation: Firefox 2.0.0.11 on Vista SP.27 (just joking it's only SP.13). String from Mike Brady - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.9)
 Gecko/20071025 Firefox/2.0.0.9

Explanation: Firefox 2.0.0.9 on XP. String from James Rourke - thanks.

Mozilla/5.0 (X11; U; FreeBSD i686; en-US; rv:1.8.1.9) 
 Gecko/20071025 Firefox/2.0.0.9

Explanation: Firefox 2.0.0.9 on FreeBSD (yipee). String from Julius Thyssen - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.8) Gecko/20070914
   Mandriva/2.0.0.8-1mdv2008.0 (2008.0) Firefox/2.0.0.8

Explanation: Firefox 2.0.0.8 running on Mandriva Linux Distribution 2008.0. String from Christoph Gröver - thanks.

Mozilla/5.0 (Windows; U; WinNT3.51; en-US; rv:1.8.1.7) 
 Gecko/20070914 Firefox/2.0.0.7

Explanation: Firefox 2.0.0.7 on Windows NT 3.51 - according to Nathan "Have to delete a couple of component JS files related to phishing detection to make it start without freezing, but it works and is usable!" - wow. String from Nathan Lineback - thanks.

Mozilla/5.0 (BeOS; U; BeOS BePC; en-US; rv:1.8.1.7)
 Gecko/20070917 BonEcho/2.0.0.7

Explanation: Firefox 2.0.0.7 on BeOS - apparently BonEcho must be used instead of Firefox 'cos of name disputes. String from Nathan Lineback - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US;
 rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7

Explanation: Firefox 2.0.0.7 on Windows XP. String from Ray Waters - thanks.

Mozilla/5.0 (X11; U; FreeBSD i686; en-US; rv:1.8.1.6)
 Gecko/20070725 Firefox/2.0.0.6

Explanation: Firefox 2.0.0.6 on FreeBSD 6.2. String from Julius Thyssen - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; 
 rv:1.8.1.6) Gecko/20070725 Firefox/2.0.0.6

Explanation: Firefox 2.0.0.6 on XP. String from Jaqueline Boakye - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.4) Gecko/20070515 Firefox/2.0.0.4

Explanation: Firefox 2.0.0.4 Windows XP. String from Vinny Glennon - thanks.

Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.8.1.4) Gecko/20061201 Firefox/2.0.0.4 (Ubuntu-feisty)

Explanation: Firefox 2.0.0.4 on 64-bit Ubuntu Linux Feisty Fawn (gotta love those names). String from Jon J - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3

Explanation: Firefox 2.0.0.3 running on XP. String from David Ross - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.2) Gecko/20070220 Firefox/2.0.0.2

Explanation: Firefox 2.0.0.2 on vanilla Linux 32-bit, standard Mozilla build. String from Jon J - thanks.

Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.8.1.1) Gecko/20061228 Firefox/2.0.0.1

Explanation: Firefox 2.0.0.1 running on a Sun UltraSPARC system under Solaris 10. String from Jason Mayfield-Lewis - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.2; en-GB; rv:1.8.1) Gecko/20061010 Firefox/2.0

Explanation: Standard 32-bit Firefox 2.0 (release version) running on Windows XP 64-bit edition SP1. String from Jason Mayfield-Lewis - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.8.1) Gecko/20060918 Firefox/2.0

Explanation: Firefox 2.0 RC1 on windows 2000 (available from this location). String from Jospeh Christianson - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.8.1b2) Gecko/20060821 Firefox/2.0b2

Explanation: Firefox 2.0 beta 2 on windows 2000. String from Jospeh Christianson - thanks.

Releases - v1.5 Series

Mozilla/5.0 (X11; U; Darwin Power Macintosh; en-US; rv:1.8.0.12) Gecko/20070803 Firefox/1.5.0.12 Fink Community Edition

Explanation: Firefox 1.5.0.12 on Darwin 8.10.0 with with the Fink Community version. String from Tyler Stobbe - thanks.

Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.8.0.7) Gecko/20060915 Firefox/1.5.0.7

Explanation: Firefox 1.5.0.7 on OS/2 Warp 4. String from Richard Steiner - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7

Explanation: Firefox 1.5.0.7 - XP SP2 on a Dell Optiplex GX280. String from Thomas Bradshaw - thanks.

Mozilla/5.0 (Windows; U; Windows NT 6.0; pt-BR; rv:1.8.0.7) Gecko/20060909 Firefox/1.5.0.7

Explanation: Firefox 1.5.0.7 Windows Vista Beta. String from Renan Birck - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.5) Gecko/20060719 Firefox/1.5.0.5

Explanation: Firefox 1.5.0.5 on vanilla Linux, standard 32-bit Mozilla build. String from Jon J - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.3) Gecko/20060426 Firefox/1.5.0.3

Explanation: Firefox 1.5.0.3 on ReactOS 0.3.0 (ReactOs is a project to create an OS binary compatible XP). String from Antony Jones - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.6) Gecko/20060728 Firefox/1.5.0.6

Explanation: Firefox 1.5.0.6 on FC3 on Dell dimension B110. String from Bryan Quach - thanks.

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.0.4) Gecko/20060508 Firefox/1.5.0.4

Explanation: Firefox 1.5.0.4 on OS X on the Mac. String from David Atkins - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9a1) Gecko/20060612 Minefield/3.0a1

Explanation: Latest development branch running on XP SP2 from this site. String from Luke B - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8.0.4) Gecko/20060508 Firefox/1.5.0.4

Explanation: Firefox 1.5.0.4 on Win 2K SP4. String from Tim Valdez - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.4) Gecko/20060602 Firefox/1.5.0.4

Explanation: Firefox 1.5.0.4 on XP. String from John Lewis - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.4) Gecko/20060602 Firefox/1.5.0.4

Explanation: Firefox 1.5.0.4 on AMD running a slackware Linux distro. String from Robert Darin - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.3) Gecko/20061024
Oracle/1.5.0.3-0.3.EL4 Firefox/1.5.0.3 pango-text

Explanation: Firefox 1.5.0.3 on Oracle's Unbreakable Linux. String from Jonathan McCormack - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.0.3) Gecko/20060425 SUSE/1.5.0.3-7 Firefox/1.5.0.31

Explanation: Firefox 1.5.0.31 on suSE 10.1. String from Suesh P.C. - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.2) Gecko/20060308 Firefox/1.5.0.2

Explanation: Firefox 1.5.0.2 on XP - latest and greatest. String from Marshall Kiker - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.0.1) Gecko/20060111 Firefox/1.5.0.1

Explanation: Firefox 1.5.0.1 on XP with SP2. String from Deyan Mavrov - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8) Gecko/20051111 Firefox/1.5

Explanation: Firefox 1.5 on Win2K. String from Stuart Langridge - thanks.

Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.8) Gecko/20051130 Firefox/1.5

Explanation: Firefox 1.5 on Solaris. String from Bob Doolittle - thanks.

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8) Gecko/20051111 Firefox/1.5

Explanation: Firefox 1.5 on Mac OS X 10.4.4. String from Pavel Sochnev - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-BR; rv:1.8) Gecko/20051111 Firefox/1.5

Explanation: Firefox 1.5 on XP SP2 Brazilian - Portugese version. String from Renan Birk - thanks.

Releases - v1 Series

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.13) Gecko/20060410 Firefox/1.0.8

Explanation: Firefox 1.0.8 on XP as part of the portableapps suite. String from Rafael Holt - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7 (ax)

Explanation: Firefox 1.0.7 on MS Advanced Server on a 64 bit thingy. String from Sean Cheshire - thanks.

Mozilla/5.0 (X11; U; Linux sparc64; en-US; rv:1.7.12) Gecko/20051105 Firefox/1.0.7

Explanation: Firefox 1.0.7 on Linux on a SPARC-54. String from Chance Platt - thanks.

Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7.12) Gecko/20051105 Firefox/1.0.7

Explanation: Firefox 1.0.7 on FreeBSD 5.4. String from Edwin Chambers - thanks.

Mozilla/5.0 (OS/2; U; Warp 4.5; en-US; rv:1.7.12) Gecko/20050922 Firefox/1.0.7

Explanation: Firefox 1.0.7 on a version OS Warp from ecomstation/. String from Jonathan McCormack - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.12) Gecko/20050922 Firefox/1.0.7 (Ubuntu package 1.0.7)

Explanation: Firefox 1.0.7 on the PC Ubuntu distro of Linux (kernel 2.6.10-5. String from Jason Allberry - thanks.

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7

Explanation: Firefox 1.0.7 on the Mac with OS X. Well the software may be changing fast but they have stuck with the name Firefox for a while now (seriously - still a great browser). String from Zonjai Nezba - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.12) Gecko/20050915 Firefox/1.0.7

Explanation: Juts to prove that Firefox also runs on less exotic hardware and software this is Firefox 1.0.7 on XP (you know - the one with BIG patches) . String from Leeroy Hendricks - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-BR; rv:1.7.10) Gecko/20050717 Firefox/1.0.6

Explanation: A brazilian Version 1.0.6 on Windows XP. String from Renan Birck - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7.10) Gecko/20050925 Firefox/1.0.4 (Debian package 1.0.4-2sarge5)

Explanation: Version 1.0.4 on Debian GNU/Linux 3.1 (a.k.a. Sarge), which shows the deb package it came from, as found in the 'general.useragent.vendorComment' field in the 'about:config' URL for Firefox 1.0.4. String from Colby Waley - thanks.

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4

Explanation: Version 1.0.4 on the Mac. String from Stephen Paulsen - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.8) Gecko/20050511 Firefox/1.0.4 (ax)

Explanation: Version 1.0.4 with Windows Media ActiveX Control. String from Dennis Henderson - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.7.8) Gecko/20050418 Firefox/1.0.4

Explanation: Starting to come thick and fast now - version 1.04 (current Release is 1.0.3). String from Anon - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.6) Gecko/20050317 Firefox/1.0.2

Explanation: Release version of Firefox 1.0.2 on March 23rd 2005. String from Dexter Ang - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.6) Gecko/20050224 Firefox/1.0.2

Explanation: Early sighting of Firefox 1.0.2 from aviary nightly builds. String from Joseph Christianson - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8b2) Gecko/20050224 Firefox/1.0+

Explanation: Firefox 1.0+ to quote from Joseph "Aside from the general release line (currently in the 1.0.x line) there is also the simultaneous trunk development on the 1.8b2 core that currently carries the 1.0+ designation". String from Joseph Christianson - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8b3) Gecko/20050712 Firefox/1.0+

Explanation: Firefox 1.0+ trunk build of Deer Park Alpha 2 (quaint name). String from Asbjørn Pedersen - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-GB; rv:1.7.6) Gecko/20050222 Firefox/1.0.1

Explanation: Firefox 1.0.1 - the first update based on Moz 1.7.6 - Windows 2K. String from Joseph Christianson - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.5) Gecko/20050207 Firefox/1.0.1

Explanation: Firefox 1.0.1 - customized nightly build - Windows 2K. String from anonymous - thanks whoever you are.

Mozilla/5.0 (SkyOS; U; Intel x86; en-US; rv:1.7.5) Gecko/20061024 Firefox/1.0

Explanation: Firefox 1.0 running under SkyOS. String from Jonathan McCormack - thanks.

Mozilla/5.0 (X11; U; SunOS sun4u; en-US; rv:1.7.5) Gecko/20041109 Firefox/1.0

Explanation: Firefox 1.0 - Firefox 1.0 running on a dual CPU Sun Ultra60 with Elite3D-m6 gfx under Solaris 10. String from Michael Dolye - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

Explanation: Firefox 1.0 - running on XP64 (build 3790 c. 1218). String from Eugene Sadhu - thanks.

Mozilla/5.0 (Windows; U; Win95; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

Explanation: Firefox 1.0 - running on Win 95. Not officially supported but clearly works according to Andrew as long as you update some libraries. String from Andrew Turnbull - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

Explanation: Firefox 1.0 Final release Nov 8, 2004 - Running on Win XP64 no less. String from Sean Cheshire - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.5) Gecko/20041107 Firefox/1.0

Explanation: Firefox 1.0 Final release Nov 8, 2004 - Running on Win XP Pro SP2. String from Dennis Henderson, Douglas Mosman, Jonathan Walker and Jeff Conrad - thanks.

Releases - Pre v1

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20041122 Firefox/0.5.6+

Explanation: Interesting oddity. A Netscape prototype of a browser based on Firefox info here though you have to register. Apparently no longer available? String from Louise McCormack - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040815 Firefox/0.8 (MOOX M3)

Explanation: Customised build (optimised for speed and stability) of Firefox on XP Pro. String from Erik Bolsø - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20040913 Waterunicorn/0.10 StumbleUpon/1.998

Explanation: Customised Firefox from Cosmic Cat on XP Pro. This one changes the browser name every time it hits a page - we thought Firefox .. or is that Firebird .. Phoenix... etc., etc.. were doing a pretty good job on their own. With stumbleupon toolbar. String from Erik Bolsø - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20041002 Firefox/0.10.1

Explanation: Latest Win-32 Firefox on XP Pro. This is the one that fixes the security problem. String from Anders Pedersen - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.3) Gecko/20041002 Firefox/0.10

Explanation: Latest Win-32 Firefox on XP Pro comes complete with a security problem. String from Anders Pedersen - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20040913 Spacebug/0.10 (aka Firefox/0.10)

Explanation: Latest Firefox with extension from Cosmic Cat Creations. String from Ignasi Peiro - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; rv:1.7.3) Gecko/20040913 Firefox/0.10

Explanation: Very strange numbering should be 1.0 surely?. Erik also observes they dropped the language code - maybe they are going to change the name again!! String from Erik Inge Bolsø - thanks.

Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.6) Gecko/20040206 Firefox/0.8

Explanation: Out of order FireFox 0.8 - but on a MAC! - we guess that OS X allows MAC guys standard *nix browser choices. String from Erik Inge Bolsø - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040707 Firefox/0.9.2 StumbleUpon/1.998

Explanation: Standard Firefox but with stumbleupon toolbar. String from Erik Inge Bolsø - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; de-DE; rv:1.7) Gecko/20040707 Firefox/0.9.2

Explanation: Version of FireFox 0.9.2 - another oopsy version upgrade in german this time (fixes the gottchas), Gecko 1.7 engine on Win2K. String from Erik Inge Bolsø - thanks.

Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7) Gecko/20040630 Firefox/0.9.1

Explanation: Version of FireFox 0.9.1 - much improved version (in our language - fixes the gottchas), Gecko 1.7 engine on FreeBSD (yipee). String from Edwin Chambers - thanks.

Mozilla/5.0 (X11; U; NetBSD i386; en-GB; rv:1.7) Gecko/20040708 Firefox/0.9.1

Explanation: Version of FireFox 0.9.1 (this is the one that fixes the gottchas), Gecko 1.7 engine on NetBSD (hurrah) on AMD Athlon/Thunderbird. String from Alex Poylisher - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7) Gecko/20040626 Firefox/0.9.1

Explanation: Version of FireFox 0.9.1 (this is the one that fixes the gottchas), Gecko 1.7 engine on Win2K. String from Anders Pedersen - thanks.

Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.7) Gecko/20040619 Firefox/0.9

Explanation: FireFox 0.9. but with Gecko 1.7 engine on FreeBSD. String from Edwin Chambers - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7) Gecko/20040614 Firefox/0.9

Explanation: FireFox 0.9. but with Gecko 1.7 engine (see below) on Microsoft Windows XP Pro. String from Frank Spychaj - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a) Gecko/20040416 Firefox/0.8.0+

Explanation: One of the Firefox nightly builds with a Gecko 1.8 engine on Microsoft Windows 2000 Pro 5.00.2195 SP4. String from Anders Pedersen (a brave guy taking nightly builds) - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.6) Gecko/20040206 Firefox/0.8 Mnenhy/0.6.0.103

Explanation: FireFox 0.8 on XP - but with an oddball extension. String from Erik Inge Bolsø - thanks.

Mozilla/5.0 (X11; U; Linux i686; de-DE; rv:1.6) Gecko/20040207 Firefox/0.8

Explanation: Smokin' Hot from the Mozilla press on the day of release. Firebird (Mozilla's new browser) version 0.8 (latest and greatest) on Linux (distro SuSE 8.2) this the english language version with a german language preference. String from Erik - thanks.

Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.5) Gecko/20031007 Firebird/0.7

Explanation: Firebird (Mozilla's new browser) version 0.7 (latest and greatest) on XP this the french language version. String from Christophe Agathon - nous vous remercions.

Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.5) Gecko/20031023 Firebird/0.7

Explanation: Firebird (Mozilla's new browser) version 0.7 (latest and greatest) on FreeBSD 5.1 (latest and greatest). String from Andreas Kohn - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.5a) Gecko/20031002 Mozilla Firebird/0.6.1

Explanation: Firebird version 0.6.1 on Debian 3.0 Woody. String from Philippe Bechamp - thanks.

Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6

Explanation: Firebird (Mozilla's new browser) version 0.6 on Mandrake Linux 9.0. String from Andrew Preater - thanks.

Mozilla/5.0 (X11; U; SunOS sun4m; en-US; rv:1.4b) Gecko/20030517 Mozilla Firebird/0.6

Explanation: Firebird 0.6 running on a SPARCstation 20 (note sun4m) under Solaris 8. String from Michael Doyle - thanks.

Mozilla/5.0 (X11; U; SunOS sun4m; en-US; rv:1.4b) Gecko/20030517 Mozilla Firebird/0.6

Explanation: Firebird 0.6 running on a Sun SPARCstation 20 w. 2 200MHZ HyperSPARC procs. under Sol 2.8 1/01. String from Michael Doyle - thanks.

Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.3a) Gecko/20021207 Phoenix/0.5

Explanation: Phoenix (Mozilla lite) version 0.5 on Windows NT 4.0

Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.2b) Gecko/20021001 Phoenix/0.2

Explanation: Phoenix (Mozilla lite) version 0.2 on Windows NT 4.0

Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.2b) Gecko/20020923 Phoenix/0.1

Explanation: Phoenix (Mozilla lite) version 0.1 on Windows XP

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