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[El Guru (Al)]

I am working on putting together a blog entry on deciphering the Firefox Build ID. I am doing this so folks can understand what their build ID says about their version of Firefox. For the most part I understand the parts of the build ID but had some questions. 

• I noticed all build IDs start with Mozilla/5.0 ~ I understand the Mozilla part but was is the 5.0?
• Also I noticed between the operating system type and version there is an 'U' (Windows; U; Windows NT 5.1). What does the 'U' stand for.
• On the Linux build IDs they start out as (x11; U ; Linux i586) or (x11; U; Linux i686).  Two questions, what is x11 and what are i586 & i686

Everything else I have figured out.  Any help would be appreciated.

[Ryan Wagner]

From Wikipedia:

Code: [Select]

Mozilla/MozVer (Platform; Security; SubPlatform; Language; rv:Revision[; Extension]*) Gecko/GeckVer [Product/ProdVer]
Where:

    * MozVer: Netscape compatibility version
          o 5.0 for all known Mozilla browsers
    * Platform and SubPlatform
          o Windows
                + Win3.11: Windows 3.11
                + Win95: Windows 95
                + Win98: Windows 98
                + Win 9x 4.90: Windows Me
                + WinNT3.51: Windows NT 3.51
                + WinNT4.0: Windows NT 4.0
                + Windows NT 5.0: Windows 2000
                + Windows NT 5.1: Windows XP (except XP Professional x64 Edition)
                + Windows NT 5.2: Windows Server 2003 and Windows XP Professional x64 Edition
                + Windows NT 6.0: Windows Vista
                + Windows CE 4.21: Windows Mobile 2003
          o Macintosh
                + PPC Mac OS X
                + PPC Mac OS X Mach-O
                + Intel Mac OS X
          o X11
                + Linux [Version] Hardware
                + FreeBSD Hardware
                + NetBSD Hardware
                + SunOS sun4u
    * Security
          o U: strong security (USA)
          o I: weak security (International)
          o N: no security
    * Language: standarized language identifier, e.g.: en, en-US, en-GB
    * Revision: e.g. m18, 1.0rc3, 1.7.8, 1.8a2
    * Extension
          o MultiZilla Version
    * GeckVer: Gecko (layout engine) compilation date, in the format YYYYMMDD
    * Product
          o For the Mozilla Application Suite, there is no Product or ProdVer. The Revision is the product version.
          o Netscape, Netscape6
          o Phoenix, Firebird, Firefox, GranParadiso (Firefox 3 codename)
          o K-Meleon
          o Minimo
          o SeaMonkey
          o Camino
          o CS 2000 7.0
    * ProdVer: Product version

[El Guru (Al)]

Thanks, I looked in Wikipedia    What did you search under? 

Edit: never mind, you provided a link.

[El Guru (Al)]

    * MozVer: Netscape compatibility version
          o 5.0 for all known Mozilla browsers

Interesting, since technically there was never a "released" version 5 of Netscape.  Mozilla's first version was 6.0 in 1998. ~ Wikipedia

[Ryan Wagner]

Never thought about that but it is pretty interesting. What a brain stumper.