User Agent String explained :
 Firefox 3.0.12 | |
|---|---|
| Mozilla | MozillaProductSlice. 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 | 
| 5.0 | Mozilla version | 
| Windows | Platform | 
| U |  Security values: 
  | 
| Windows NT 5.1 | Operating System:   Windows XP | 
| en-GB | Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface)  en-GB =  English - Great Britain | 
| rv:1.9.0.12 |  CVS Branch Tag The version of Gecko being used in the browser  | 
| Gecko | Gecko engine inside | 
| 2009070611 |  Build Date: the date the browser was built  | 
| Firefox | Name :  Firefox | 
| 3.0.12 | Firefox version | 
| GTB5 | Google Toolbar 5 | 
| .NET CLR 3.5.30729 |  .NET framework  Version : 3.5.30729  | 
| FirePHP | FirePHP Firefox Extension, enables you to print to your Firebug Console | 
| 0.3 | FirePHP version | 
| First visit: | 2009.07.23 12:30 | 
| Last visit: | 2018.07.29 08:07 | 
All Firefox user agent strings  | |
Firefox 3.0.12
 
English - Great Britain