| User Agent | Client Version | Operating System | OS Version | Language |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.0.19) Gecko/2010062819 Firefox/3.0.19 Flock/2.6.1 | 2.6.1 | Mac OS X | 10.6 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.19) Gecko/2010061202 Firefox/3.0.19 Flock/2.6.0 | 2.6.0 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.16) Gecko/2010010314 Firefox/3.0.16 Flock/2.5.6 | 2.5.6 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.0.16) Gecko/2010010314 Firefox/3.0.16 Flock/2.5.6 | 2.5.6 | Mac OS X | 10.6 | en |
| Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-US; rv:1.9.0.16) Gecko/2010010314 Firefox/3.0.16 Flock/2.5.6 | 2.5.6 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.16) Gecko/2010010414 Firefox/3.0.16 Flock/2.5.6 | 2.5.6 | Windows | xp | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en; rv:1.9.0.16) Gecko/2010010314 Firefox/3.0.16 Flock/2.5.6 | 2.5.6 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.15) Gecko/2009110308 Firefox/3.0.15 Flock/2.5.5 | 2.5.5 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.0.15) Gecko/2009110308 Firefox/3.0.15 Flock/2.5.5 | 2.5.5 | Mac OS X | 10.6 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; pl; rv:1.9.0.14; onet) Gecko/2009101117 Firefox/3.0.14 Flock/2.5.3 | 2.5.3 | Mac OS X | 10.5 | pl |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.3) Gecko/2008100408 Firefox/3.0.3 Flock/2.1a1pre | 2.1a1pre | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.4; en-US; rv:1.9.0.2) Gecko/2008092121 Firefox/3.0.2 Flock/2.0b3 | 2.0b3 | Mac OS X | 10.4 | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.2) Gecko/2008092121 Firefox/3.0.2 Flock/2.0b3 | 2.0b3 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.1) Gecko/2008071523 Firefox/3.0.1 Flock/2.0b2 | 2.0b2 | Windows | xp | en |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.1) Gecko/2008071523 Firefox/3.0.1 Flock/2.0b2 | 2.0b2 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9) Gecko/2008061302 Firefox/3.0 Flock/2.0b1 | 2.0b1 | Windows | vista | en |
| Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9pre) Gecko/2008051917 Firefox/3.0pre Flock/2.0a1pre | 2.0a1pre | Linux | en | |
| Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.5; en-US; rv:1.9.0.5) Gecko/2008121716 Firefox/3.0.5 Flock/2.0.3 | 2.0.3 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Macintosh; U; PPC Mac OS X 10.5; en-US; rv:1.9.0.5) Gecko/2008121716 Firefox/3.0.5 Flock/2.0.3 | 2.0.3 | Mac OS X | 10.5 | en |
| Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.0.5) Gecko/2008121620 Firefox/3.0.5 Flock/2.0.3 | 2.0.3 | Windows | vista | en |