User Agent 字符串描述 :

FirefoxFirefox 2.0a1
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
Macintosh Platform
U Security values:
  • N for no security
  • U for strong security
  • I for weak security
PPC Mac OS X Mach-OOperating System:
OS X
running on a PowerPC CPU (PPC)
based on a Mach Kernel using Mach-O (Mach object) file format
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:1.8 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
20060320 Build Date:
the date the browser was built
FirefoxName :
Firefox
2.0a1Firefox version
 
Last visit:2015.09.16 11:01

All Firefox user agent strings