User Agent 字符串描述 :

FirefoxFirefox 14.0a1
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
Windows NT 6.1Operating System:
icon Windows 7
rv:14.0 CVS Branch Tag
The version of Gecko being used in the browser
Gecko Gecko engine inside
20120405 Build Date:
the date the browser was built
FirefoxName :
Firefox
14.0a1Firefox version
 
First visit: 2012.07.17 10:56
Last visit:2015.07.24 02:07

All Firefox user agent strings