| Type | Browser |
| Producer | Mozilla Foundation |
| Browser homepage | http://www.mozilla.org/projects/browsers.html |
| Layout engine | Gecko |
Useragentstring example:Mozilla/5.0 (Windows; U; Windows NT 5.0; it-IT; rv:1.7.12) Gecko/20050915Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.1) Gecko/20020919 | |