User Agent String explained :
 Firefox 3.5.6 | |
|---|---|
| Mozilla | It's a Mozilla based browser |
| 5.0 | Mozilla Version |
| X11 | X Window System a windowing system for bitmap displays |
| U | Security values:
|
| Linux x86_64 | Operating System:  Linuxrunning on a Intel CPU running on a 64 bit processor |
| en-US | Language Tag, indicates the language for which the client had been localized (e.g. menus and buttons in the user interface) en-US =  English - United States
|
| rv:1.9.1.6 | CVS Branch Tag The version of Gecko being used in the browser |
| Gecko | Gecko engine inside |
| 20100117 | Build Date: the date the browser was built |
| Gentoo | Gentoo Linux distribution |
| Firefox | Name : Firefox |
| 3.5.6 | Version |
| First visit: | 2010.01.29 07:04 |
| Last visit: | 2010.03.05 06:38 |
All Firefox user agent strings | |