Latest Facebook 43 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; es-us; SCH-R530X Build/JSS15J) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Galaxy S III LTE
Mozilla/5.0 (Linux; U; Android 4.3; en-us; HUAWEI C8816D Build/HuaweiC8816D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 C8816D
Mozilla/5.0 (Linux; U; Android 4.2.2; es-it; GT-I9060 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Galaxy Grand Neo
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; MX736-Kit Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 MX736
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-br; LG-E467f Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Optimus L4 II Dual
Mozilla/5.0 (Linux; U; Android 4.1.2; pt-br; LG-E465f Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Optimus L4 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; ZTE-Z995 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Z995
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; G527-U081 Build/HuaweiG527-U081) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Ascend G527
Mozilla/5.0 (Linux; U; Android 4.1.2; es-mx; LG-E450g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Optimus L5 II
Mozilla/5.0 (Linux; U; Android 4.1.2; es-es; GT-S5310E Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Galaxy POCKET Neo
Mozilla/5.0 (Linux; U; Android 4.1.2; es-co; LG-E465g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 E465g
Mozilla/5.0 (Linux; U; Android 4.1.2; es-ar; LG-E465g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 E465g
Mozilla/5.0 (Linux; U; Android 4.1.2; es-ar; LG-E425g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 E425g
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z740 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Z740
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-V72A Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.1 Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 V72A
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; SHV-E120S Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Galaxy S II HD LTE
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-LG730 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 730
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-E450g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 Optimus L5 II
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-E425g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 E425g
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; LG-AS780 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/43.0.0.29.147;] Android 4 AS780