User Agent 字符串描述 :

FirefoxFirefox 3.5.15
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
en-GBLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface)
en-GB = English - Great BritainEnglish - Great Britain
rv:1.9.1.15 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
20101027 Build Date:
the date the browser was built
FedoraFedora Linux distribution
3.5.15-1.fc12Package file version number : 3.5.15
Package revision number : 1.fc12
FirefoxName :
Firefox
3.5.15Firefox version
 
First visit: 2010.12.10 05:00
Last visit:2015.02.06 04:19

All Firefox user agent strings