User Agent String explained :
 Thunderbird 13.0.1 | |
|---|---|
| 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 i686 | Operating System:   Linuxrunning on a Intel Pentium Pro CPU  | 
| rv:13.0 |  CVS Branch Tag The version of Gecko being used in the browser  | 
| Gecko | Gecko engine inside | 
| 20120615 |  Build Date: the date the browser was built  | 
| Thunderbird | Name :  Thunderbird | 
| 13.0.1 | Thunderbird version | 
| Lightning | Extension that brings the Sunbird calendar to Thunderbird and SeaMonkey | 
| 1.5.1 | Lightning version | 
| Description: | E-mail and news client developed by the Mozilla Foundation | 
| First visit: | 2012.06.27 06:09 | 
| Last visit: | 2022.04.24 01:17 | 
All Thunderbird user agent strings  | |
Thunderbird 13.0.1