User Agent 字符串描述 :

FirefoxFirefox 3.0.3
MozillaMozillaProductSlice. Claims to be a Mozilla based user agent, which is only true for Gecko browsers like Firefox and Netscape. For all other user agents it means 'Mozilla-compatible'. In modern browsers, this is only used for historical reasons. It has no real meaning anymore
5.0Mozilla version
X11X Window System
a windowing system for bitmap displays
U Security values:
  • N for no security
  • U for strong security
  • I for weak security
Linux x86_64Operating System:
icon Linux
running on a Intel CPU
running on a 64 bit processor
es-ARLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface)
es-AR = Spanish - ArgentinaSpanish - Argentina
rv:1.9.0.3 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
2008092515 Build Date:
the date the browser was built
UbuntuUbuntu Linux distribution
8.10Version 8.10
intrepidintrepid version
FirefoxName :
Firefox
3.0.3Firefox version
 
First visit: 2008.10.02 03:09
Last visit:2015.09.21 09:39

All Firefox user agent strings