| User Agent | Client Version | Operating System | OS Version | Language |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080326 Firefox/2.0.0.13 Flock/1.1.1 | 1.1.1 | Windows | xp | en |
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.12) Gecko/20080304 Firefox/2.0.0.12 Flock/1.1 | 1.1 | Linux | en | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.12) Gecko/20080304 Firefox/2.0.0.12 Flock/1.1 | 1.1 | Windows | xp | en |
| Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1.12; ns) Gecko/20080304 Firefox/2.0.0.12 Flock/1.1 | 1.1 | Mac OS X | en | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.8) Gecko/20071018 Firefox/2.0.0.8 Flock/1.0RC3 | 1.0RC3 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.12) Gecko/20080211 Firefox/2.0.0.12 Flock/1.0.9 | 1.0.9 | Windows | xp | en |
| Mozilla/5.0 (X11; U; Linux i686; ru; rv:1.8.1.11) Gecko/20080131 Firefox/2.0.0.11 Flock/1.0.8 | 1.0.8 | Linux | ru | |
| Mozilla/5.0 (X11; U; Linux i686 (x86_64); en-US; rv:1.8.1.11) Gecko/20080126 Firefox/2.0.0.11 Flock/1.0.8 | 1.0.8 | Linux | en | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20080126 Firefox/2.0.0.11 Flock/1.0.8 | 1.0.8 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.11) Gecko/20071231 Firefox/2.0.0.11 Flock/1.0.5 | 1.0.5 | Windows | xp | en |
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.11) Gecko/20071206 Firefox/2.0.0.11 Flock/1.0.3 | 1.0.3 | Linux | en | |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.9) Gecko/20071106 Firefox/2.0.0.9 Flock/1.0.1 | 1.0.1 | Mac OS X | en | |
| Mozilla/5.0 (Macintosh; U; PPC Mac OS X Mach-O; en-US; rv:1.8.1.8) Gecko/20071101 Firefox/2.0.0.8 Flock/1.0 | 1.0 | Mac OS X | en | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.7) Gecko/20071013 Firefox/2.0.0.7 Flock/0.9.1.3 | 0.9.1.3 | Windows | xp | en |
| Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.7) Gecko/20070925 Firefox/2.0.0.7 Flock/0.9.1.2 | 0.9.1.2 | Windows | vista | en |
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.6) Gecko/20070914 Firefox/2.0.0.6 Flock/0.9.1.0 | 0.9.1.0 | Linux | en | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.6) Gecko/20070801 Firefox/2.0.0.6 Flock/0.9.0.2 | 0.9.0.2 | Windows | xp | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X; en-US; rv:1.8.1.6) Gecko/20070801 Firefox/2.0.0.6 Flock/0.9.0.2 | 0.9.0.2 | Mac OS X | en | |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.4) Gecko/20070707 Firefox/2.0.0.4 Flock/0.9.0 | 0.9.0 | Windows | xp | en |
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.2) Gecko/20070307 Firefox/2.0.0.2 Flock/0.7.99 | 0.7.99 | Linux | en |