User Agent String explained :
 Thunderbird 3.1.9 | |
|---|---|
| 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 6.0 | Operating System:  Windows Vista |
| 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:1.9.2.15 | CVS Branch Tag The version of Gecko being used in the browser |
| Gecko | Gecko engine inside |
| 20110303 | Build Date: the date the browser was built |
| Lightning | Extension that brings the Sunbird calendar to Thunderbird and SeaMonkey |
| 1.0b2 | Lightning version |
| Thunderbird | Name : Thunderbird |
| 3.1.9 | Thunderbird version |
| ThunderBrowse | Browser plugin for Thunderbird and Postbox |
| 3.8 | Version 3.8 |
| Description: | E-mail and news client developed by the Mozilla Foundation |
| First visit: | 2011.10.04 05:09 |
| Last visit: | 2018.07.29 01:08 |
All Thunderbird user agent strings | |