User Agent String explained :
 Firefox  | |
|---|---|
| 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 | 
| X11 | X Window System  a windowing system for bitmap displays  | 
| Linux x86_64 | Operating System:   Linuxrunning on a Intel CPU running on a 64 bit processor  | 
| rv:1.8.1.6 |  CVS Branch Tag The version of Gecko being used in the browser  | 
| Gecko | Gecko engine inside | 
| 20070802 |  Build Date: the date the browser was built  | 
| Firefox | Name :  Firefox | 
| Last visit: | 2018.11.03 02:58 | 
All Firefox user agent strings  | |
Firefox