| User Agent | Client Version | Operating System | OS Version | Language |
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4a) Gecko/20030425 Mozilla Firebird/0.6 | 0.6 | Linux | en | |
| Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.4b) Gecko/20030610 Mozilla Firebird/0.6 | 0.6 | Windows | nt | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:x.xx) Gecko/20030504 Mozilla Firebird/0.6 | 0.6 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5a) Gecko/20030702 Mozilla Firebird/0.6 | 0.6 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.5a) Gecko/20030630 Mozilla Firebird/0.6 | 0.6 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030615 Mozilla Firebird/0.6 | 0.6 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6 | 0.6 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4b) Gecko/20030503 Mozilla Firebird/0.6 | 0.6 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; de-DE; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6 | 0.6 | Windows | xp | de |
| Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6 | 0.6 | Windows | 2000 | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4b) Gecko/20030514 Mozilla Firebird/0.6 | 0.6 | Windows | 2000 | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.4b) Gecko/20030504 Mozilla Firebird/0.6 | 0.6 | Windows | 2000 | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.0; de-DE; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6 | 0.6 | Windows | 2000 | de |
| Mozilla/5.0 (Windows; U; Win98; en-US; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6 | 0.6 | Windows | 98 | en |
| Mozilla/5.0 (Windows; U; Win98; de-DE; rv:1.4b) Gecko/20030516 Mozilla Firebird/0.6 | 0.6 | Windows | 98 | de |