Latest Firefox 5 user agents:

User Agent Platform Device
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_7_1; rv:1.9.6.20) Gecko/6220-08-24 03:39:07.543182 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 6.1; es-CU; rv:1.9.0.20) Gecko/4068-12-16 18:47:33.159477 Firefox/5.0 Windows 7 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/6318-11-25 21:07:33.774002 Firefox/5.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_8_7; rv:1.9.2.20) Gecko/5959-01-21 00:45:56.742249 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Macintosh; PPC Mac OS X 10_5_6; rv:1.9.4.20) Gecko/3590-11-21 11:56:47.159714 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 5.0; gu-IN; rv:1.9.1.20) Gecko/2906-05-27 02:54:13.955269 Firefox/5.0 Windows 2000 Unknown
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_9_4; rv:1.9.2.20) Gecko/8261-03-27 19:03:39.059753 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_8_9; rv:1.9.2.20) Gecko/8981-06-07 17:46:11.072601 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 5.1; aa-ER; rv:1.9.0.20) Gecko/9035-04-30 08:20:30.614655 Firefox/5.0 Windows XP Unknown
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_3; rv:1.9.3.20) Gecko/4025-04-26 22:52:34.243515 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 6.1; yi-US; rv:1.9.0.20) Gecko/9355-09-21 14:31:02.163391 Firefox/5.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 5.01; eu-FR; rv:1.9.1.20) Gecko/6254-01-21 05:50:30.736313 Firefox/5.0 Windows 2000 Unknown
Mozilla/5.0 (Macintosh; PPC Mac OS X 10_6_0; rv:1.9.5.20) Gecko/7875-06-11 20:56:09.100800 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (X11; Linux x86_64; rv:1.9.7.20) Gecko/6705-03-25 03:15:11.122223 Firefox/5.0 GNU/Linux Unknown
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_11_6; rv:1.9.2.20) Gecko/9861-04-02 01:38:12.641449 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_6_5; rv:1.9.4.20) Gecko/2751-01-29 10:06:25.984104 Firefox/5.0 Mac 10 Unknown
Mozilla/5.0 (Windows NT 4.0; fo-FO; rv:1.9.1.20) Gecko/8614-04-14 15:48:04.166504 Firefox/5.0 Windows NT Unknown
Mozilla/5.0 (Windows 95; lg-UG; rv:1.9.1.20) Gecko/9367-10-29 07:49:46.809448 Firefox/5.0 Windows 95 Unknown
Mozilla/5.0 (Windows NT 6.1; rv:6.0) Gecko/20100101 Firefox/5.0 Windows 7 Unknown
Mozilla/5.0 (Windows NT 6.1; U; ru; rv:5.0.1.6) Gecko/20110501 Firefox/5.0.1 Firefox/5.0.1 Windows 7 Unknown