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.
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 GranParadiso is the release leg and will not have 'pre' in the string - so there you go. Shiretoko named for the Japanese Peninsula and a UN world heritage site (aren't we the smart ones) seems to be the development release leg for 3.5 - replacing GranParadiso? While Namoroka (a unique nature reserve in northeastern Madagascar) seems to be the 3.6 development release leg.
The 'mobile Firefox' is being developed under the current codename of Fennec (a small noctunal fox found in the Sahara desert) - man, who comes up with these names. But don't worry they'll change the name 427 times before release. Multi-platform - Linux and Windows Mobile so far.
Don't forget the Mozilla SeaMonkey project about which which J. Reynolds writes:
The SeaMonkey project is a community effort to deliver production-quality releases of code derived from the application formerly known as "Mozilla Application Suite". Whereas the main focus of the Mozilla Foundation is on Mozilla Firefox and Mozilla Thunderbird, our group of dedicated volunteers works to ensure that you can have "everything but the kitchen sink" and have it stable enough for corporate use.
Explanation:Firefox 18.1 on ZTE Open running Firefox OS. String from Jonathan McCormack - thanks.
Curious and Clones (or even Curious Clones)
Mostly not supported by Mozilla
Mozilla/5.0 (Windows NT 5.1; rv:2.0) Gecko/20100101 Firefox/4.0
Explanation: Firefox Portable (FF/4) on XP (optimized for USB load). String from Thu Win - thanks.
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.4) Gecko/2008102920 Firefox/3.0.4 (Splashtop-v1.0.5.0)
Explanation:Firefox (3.0.4) branded for the HP splashtop platform. String from Jake Wasdin - thanks.
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8) Gecko/20051111 Firefox/1.5 BAVM/1.0.0
Explanation: The UA string from Firefox inside VMWare's Browser Appliance. String from Jake Wasdin - thanks.
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.
Mobile Versions
Mozilla/5.0 (X11; U; Linux armv61; en-US; rv:1.9.1b2pre) Gecko/20081015 Fennec/1.0a1
Explanation: Alpha version of Mozilla Fennec (mobile Firefox) on Nokia N800. String from Jake Wasdin - thanks.
Development Versions
Mozilla/5.0 (Windows NT 7.0; Win64; x64; rv:3.0b2pre) Gecko/20110203 Firefox/4.0b12pre
Explanation: Development version of FF4 running on Windows 8. String from Shawn Long - thanks.
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:2.0b7pre) Gecko/20100925 Firefox/4.0b7pre
Explanation: Latest Minefield (Firefox nightly) running under 64-bit Windows 7 Ultimate. This is the 32-bit version running under a 64-bit OS (for Flash and whatnot to work). String from Delian Entchev - thanks.
Mozilla/5.0 (X11; Linux i686 (x86_64); rv:2.0b4pre) Gecko/20100812 Minefield/4.0b4pre
Explanation: Firefox 4 nightly build running 32bit binary version on 64bit Linux. String from Jake Wasdin - thanks.
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9b5pre) Gecko/2008032619 Linpus/3.0-0.49.3.0b5pre.lp Minefield/3.0b5pre
Explanation: Firefox on Linpus (a new Linux Distro). String from Alan Mockford - thanks.
Explanation: Mozilla security team pre-release builds of Firefox 3.6.x running on 32bit Ubuntu Linux 9.10 (Karmic). String from Daniel Hückmann - thanks.
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.1.6) Gecko/20100127 Gentoo Shiretoko/3.5.6
Explanation: Firefox 3.5.6 without the nasty branding messages on 32-bit Gentoo. String from Bill Longman - thanks.
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.3a1pre) Gecko/20100128 Minefield/3.7a1pre
Explanation: Minefield alpha FF 3.7 on Linux x64. String from Jake Wasdin - thanks.
Explanation: FireFox 3.5 without proprietary code and branding. Distributed as the firefox 3.5 package for Ubuntu Jaunty. String from John F. Miller - thanks.
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:1.9.2a1pre) Gecko/20090403 Minefield/3.6a1pre
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 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1b2) Gecko/20081201 Firefox/3.1b2
Explanation: Shiretoko (Firefox 3.1b2) on Windows 7 no less. Note: date format change for Gecko version. String from Joel Smith - 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 i686; en-US; rv:1.8.1) Gecko/20061102 BonEcho/2.0
Explanation: Quote 'Bon Echo 2 (Firefox) running on DSL 4.4.10 running on SunxVM Virtual Box running on Ubuntu 8.10 AMD 64 just because....' Gotta love us geeks. String from James Passmore - 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.
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 - v59 Series
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:59.0) Gecko/20100101 Firefox/59.0
Explanation: Firefox 58 on Windows 10. We note that the Gecko version has not changed forever and is now, essentially, pointless and that the Firefox version shown is two digits whereas on the help screen it is 3 digits - go figure. String from us - thanks - you're welcome.
Releases - v55 Series
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:55.0) Gecko/20100101 Firefox/55.0
Explanation: Firefox 55 on Windows 7. String from navya nc (!) - thanks.
Releases - v52 Series
Mozilla/5.0 (Windows NT 6.1; rv:52.0) Gecko/20100101 Firefox/52.0
Explanation: Firefox 52 on Windows 7. String from Joe Oper - thanks.
Releases - v48 Series
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:48.0) Gecko/20100101 Firefox/48.0
Explanation: Firefox 48 on Mac OS X 10.6 String from Craig Lund - thanks.
Releases - v41 Series
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:41.0) Gecko/20100101 Firefox/41.0
Explanation: Firefox 41 on Windows 7. String from us - thanks - you're welcome.
Releases - v39 Series
Mozilla/5.0 (Windows NT 6.1; rv:39.0) Gecko/20100101 Firefox/39.0
Explanation: Firefox 38 on Windows 7. String from Heather Benjamin - thanks.
Releases - v38 Series
Mozilla/5.0 (Windows NT 6.3; WOW64; rv:38.0) Gecko/20100101 Firefox/38.0
Explanation: Firefox 38 on Windows 8.1. String from Harvey Payne - thanks.
Mozilla/5.0 (Windows NT 6.1; rv:38.0) Gecko/20100101 Firefox/38.0
Explanation: Firefox 38 on Windows 7. String from PA Kings - thanks.
Releases - v37 Series
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:37.0) Gecko/20100101 Firefox/37.0
Explanation: Firefox 37 Ubuntu (crazy-as-fox or whatever version name it is). String from Pat Crabb - thanks.
Releases - v32 Series
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:32.0) Gecko/20100101 Firefox/32.0
Explanation: Firefox 32 on 12.04. String from Frank Hum - thanks.
Releases - v31 Series
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.9; rv:31.0) Gecko/20100101 Firefox/31.0
Explanation: Firefox 31 on OS X 10.9.4 (gotta look between the dots for the OS version number). String from Mark V (yeah, right) - but thanks whoever you are.
Releases - v25 Series
Mozilla/5.0 (Windows NT 6.2; WOW64; rv:25.0) Gecko/20100101 Firefox/25.0
Explanation: Firefox 25 (32-bit) on Window 8 (64-bit). String from teste testing (yeah, right) - but thanks whoever you are.
Releases - v24 Series
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Firefox/24.0
Explanation: Firefox 24 (32-bit) on Window 7 (64-bit). String from Us - thanks - you're welcome.
Releases - v21 Series
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:21.0) Gecko/20100101 Firefox/21.0
Explanation: Firefox 21 (32-bit) on Window 7 (64-bit). String from Us - thanks - you're welcome.
Releases - v20 Series
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0
Explanation: Firefox 20 on Window 7. String from Us - thanks - you're welcome.
Releases - v19 Series
Mozilla/5.0 (X11; Linux x86_64; rv:19.0) Gecko/20100101 Firefox/19.0
Explanation: Firefox 19 on 64 bit Linux distribution. String from Deepak Pareek - thanks.
Releases - v18 Series
Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:18.0) Gecko/20100101 Firefox/18.0
Explanation: Firefox 18 is stock browser on Ubuntu 12.04. String from Frank Hum - thanks.
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
Explanation: Firefox 18 on Windows 7 64 bit. String from Alex Poylisher - thanks.
Explanation: Default web browser (Firefox 3.0.11) on the Karmic Koala daily release of Ubuntu. String from Jake Wasdin - thanks.
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-GB; rv:1.9.0.11) Gecko/2009060215 Firefox/3.0.11 (.NET CLR 3.5.30729)
Explanation: Firefox 3.0.11 on Windows Vista - interesting .NET string. String from Asik Misah - thanks.
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10
Explanation: Firefox 3.0.10 on Windows 7. String from Joseph Christianson - thanks.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10 Creative ZENcast v1.02.12
Explanation: Firefox 3.0.10 on Windows XP . From Michael "The Creative ZENcast v1.02.12 is an add-on that comes with many Creative MP3 players for creating podcasts, and is a part of a tool package that comes with the player (in this case a ZEN V Plus 4Gb unit)". String from Michael Cornwall - thanks.
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-GB; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10
Explanation: Firefox 3.0.10 on Windows 7. String from Joseph Christianson - thanks.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10
Explanation: Firefox 3.0.10 on Windows XP. String from Jas Saun - thanks.
Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.6) Gecko/2009011913 Firefox/3.0.6
Explanation: Firefox 3.0.6 on Windows Vista. String from Joseph Christianson - thanks.
Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5
Explanation: Firefox 3.0.5 on XP. String from Sivelin Minev - thanks.
Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.9.0.5) Gecko/2008120122 Firefox/3.0.5
Explanation: Firefox 3.0.5 on windows Server 2000. String from us - thanks. You're welcome.
Explanation: Firefox 3.0.1 on Mandriva 2008.1. String from Jake Wasdin - 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:1.8.1.14) Gecko/20080612 Fedora/2.0.0.14-20080612.fc8.acer Firefox/2.0.0.14
Explanation: Firefox 2.0.0.14 on Acer Aspire - visible in string. String from Jonathan McCormack - thanks.
Explanation: Firefox 2.0.0.8 running on Mandriva Linux Distribution 2008.0. String from Christoph Gröver - thanks.
Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.7) Gecko/20070918 Firefox/2.0.0.7
Explanation: Jake writes: 'This is the default user agent string for the default web browser on Fluxbuntu 7.10-- Kazehakase 0.4.3. I guess they are trying to get through user agent sniffers that sniff for Firefox instead of Gecko.'. String from Jake Wasdin - thanks.
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.
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.
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)
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.
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)
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/20040803 Firefox/0.9.3
Explanation: Standard Firefox 0.9.3. String from Zaek Jenkinson - 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.
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.
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.
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.
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.
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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