User Agent String explained :
 Thunderbird 38.1.0 | |
|---|---|
| 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 NT 6.1 | Operating System:  Windows 7 |
| WOW64 | (Windows-On-Windows 64-bit) A 32-bit application is running on a 64-bit processor |
| rv:38.0 | CVS Branch Tag The version of Gecko being used in the browser |
| Gecko | Gecko engine inside |
| 20100101 | Build Date: the date the browser was built |
| Thunderbird | Name : Thunderbird |
| 38.1.0 | Thunderbird version |
| Lightning | Extension that brings the Sunbird calendar to Thunderbird and SeaMonkey |
| 4.0.2 | Lightning version |
| Description: | E-mail and news client developed by the Mozilla Foundation |
| First visit: | 2015.08.25 06:04 |
| Last visit: | 2017.10.03 07:37 |
All Thunderbird user agent strings | |