User Agent 字符串描述 :

FirefoxFirefox 3.0.9
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 i686Operating System:
icon Linux
running on a Intel Pentium Pro CPU
deLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface)
de = GermanGerman
rv:1.9.0.9 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
2009042113 Build Date:
the date the browser was built
UbuntuUbuntu Linux distribution
8.04Version 8.04
hardyCodename: hardy
FirefoxName :
Firefox
3.0.9Firefox version
 
First visit: 2009.04.25 05:59
Last visit:2015.10.15 07:57

All Firefox user agent strings