Latest Firefox 13 user agents:

User Agent Platform Device
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/ Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; PPC Mac OS X 10_8_5; rv:1.9.3.20) Gecko/4128-07-02 12:03:55.164360 Firefox/13.0 Mac 10 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.5.20) Gecko/6813-07-16 20:28:15.625336 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/6236-11-05 20:18:36.744247 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (Windows CE; sw-KE; rv:1.9.2.20) Gecko/9411-10-19 07:43:01.816620 Firefox/13.0 Windows CE Unknown
Mozilla/5.0 (Windows 95; eo-US; rv:1.9.1.20) Gecko/5796-03-11 21:36:44.019882 Firefox/13.0 Windows 95 Unknown
Mozilla/5.0 (Macintosh; PPC Mac OS X 10_8_6; rv:1.9.5.20) Gecko/3075-01-26 20:25:09.035629 Firefox/13.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 6.0; tig-ER; rv:1.9.2.20) Gecko/8530-05-26 03:23:45.667053 Firefox/13.0 Windows Vista Unknown
Mozilla/5.0 (Windows 98; lv-LV; rv:1.9.0.20) Gecko/8615-04-26 22:23:43.795563 Firefox/13.0 Windows 98 Unknown
Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/4157-12-21 13:56:26.693848 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/6570-04-17 02:53:26.740936 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/6297-06-26 07:57:33.547607 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/2112-10-16 04:56:35.359215 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/7722-01-27 10:21:10.747589 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (X11; Linux i686; rv:1.9.5.20) Gecko/5790-09-12 19:19:16.042618 Firefox/13.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_9_8; rv:1.9.4.20) Gecko/9610-05-04 01:53:36.760773 Firefox/13.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 4.0; tl-PH; rv:1.9.0.20) Gecko/6265-07-17 11:52:03.213242 Firefox/13.0 Windows NT Unknown
Mozilla/5.0 (Macintosh; PPC Mac OS X 10_7_3; rv:1.9.5.20) Gecko/6598-03-26 21:47:39.184631 Firefox/13.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 10.0; lij-IT; rv:1.9.1.20) Gecko/2689-03-04 22:13:28.971760 Firefox/13.0 Windows 10 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/5633-12-18 22:04:30.007584 Firefox/13.0 GNU/Linux Unknown