User Agent 字符串描述 :

FirefoxFirefox 3.5.16
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
Windows Platform
U Security values:
  • N for no security
  • U for strong security
  • I for weak security
Windows NT 5.1Operating System:
icon Windows XP
en-USLanguage Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface)
en-US = English - United StatesEnglish - United States
rv:1.9.1.16 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
20101130 Build Date:
the date the browser was built
AskTbPLTV5Ask Toolbar
3.8.0.12304Version 3.8.0.12304
FirefoxName :
Firefox
3.5.16Firefox version
.NET CLR 3.5.30729 .NET framework
Version : 3.5.30729
 
First visit: 2010.12.19 06:25
Last visit:2014.02.12 02:54

All Firefox user agent strings