Latest Facebook 33 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.3; en-us; MT2L03 Build/HuaweiMT2L03LITE) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Ascend Mate 2
Mozilla/5.0 (Linux; U; Android 4.3; en-us; MT2L03 Build/HuaweiMT2L03LITE) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.27.19;] Android 4 Ascend Mate 2
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; Karbonn Titanium S5 Plus Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Titanium S5
Mozilla/5.0 (Linux; U; Android 4.2.2; en-us; HTC D616w Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.0.1;] Android 4 D616w
Mozilla/5.0 (Linux; U; Android 4.2.2; en-in; Micromax A114 Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 A114
Mozilla/5.0 (Linux; U; Android 4.2.2; en-au; GT-S7275Y Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Galaxy ACE 3
Mozilla/5.0 (Linux; U; Android 4.2.1; ar-eg; HUAWEI G700-U10 Build/HuaweiG700-U10) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Ascend G700
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/33.0.0.45.19;] Android 4 Z995
Mozilla/5.0 (Linux; U; Android 4.1.2; es-us; GT-I8260L Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Galaxy Core
Mozilla/5.0 (Linux; U; Android 4.1.2; es-pa; LG-E455g Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 E455g
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/33.0.0.45.19;] Android 4 AS780
Mozilla/5.0 (Linux; U; Android 4.1.2; en-gb; GT-I8262 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Galaxy Core
Mozilla/5.0 (Linux; U; Android 4.1.2; en-ca; GT-I9100M Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Galaxy S II
Mozilla/5.0 (Linux; U; Android 4.1.1; en-us; ZTE-Z993 Build/JRO03C) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Z993
Mozilla/5.0 (Linux; U; Android 4.0.4; es-us; GT-S5301L Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 Galaxy POCKET Plus
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; SCH-I200 Build/IMM76D) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.15.19;] Android 4 Galaxy Stellar
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-LS860 Build/IMM76I) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 LS860
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; LG-AS730 Build/IMM76L) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 AS730
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; Huawei-H867G Build/HuaweiH867G) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 H867G
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; HUAWEI M881 Build/HuaweiM881) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/33.0.0.45.19;] Android 4 M881