Latest Facebook 139 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; U; Android 4.2.2; en-au; GT-S7275T Build/JDQ39) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 4 Galaxy ACE 3
Mozilla/5.0 (Linux; U; Android 4.1.2; vi-vn; LG-F180 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 4 F180
Mozilla/5.0 (Linux; U; Android 4.1.2; en-us; ZTE-Z995 Build/JZO54K) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 4 Z995
Mozilla/5.0 (Linux; U; Android 4.0.4; en-us; HUAWEI-M931 Build/HuaweiM931) AppleWebKit/534.30 (KHTML, like Gecko) Version/4.0 Mobile Safari/534.30 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 4 M931
Mozilla/5.0 (Linux; Android 7.1.2; Redmi 4X Build/N2G47H; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/61.0.3163.98 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 7 Redmi 4X
Mozilla/5.0 (Linux; Android 7.0; U PULSE LITE Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/61.0.3163.98 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 7 U Pulse Lite
Mozilla/5.0 (Linux; Android 7.0; STARNAUTE4 Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.116 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 7 StarNaute 4
Mozilla/5.0 (Linux; Android 7.0; STARNAUTE4 Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.107 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 7 StarNaute 4
Mozilla/5.0 (Linux; Android 7.0; SM-G935K Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/61.0.3163.98 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 7 Galaxy S7 Edge
Mozilla/5.0 (Linux; Android 7.0; SM-A510M Build/NRD90M; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.107 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 7 Galaxy A5 (2016)
Mozilla/5.0 (Linux; Android 7.0; PRA-LX1 Build/HUAWEIPRA-LX1; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 7 P8 Lite (2017)
Mozilla/5.0 (Linux; Android 6.0; XT1069 Build/MPB24.65-34-3; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.107 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 6 Moto G
Mozilla/5.0 (Linux; Android 6.0; VFD 500 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/63.0.3239.111 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 6 Smart Turbo 7
Mozilla/5.0 (Linux; Android 6.0; VFD 500 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/60.0.3112.116 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 6 Smart Turbo 7
Mozilla/5.0 (Linux; Android 6.0; VFD 500 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.77 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 6 Smart Turbo 7
Mozilla/5.0 (Linux; Android 6.0; VFD 500 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/49.0.2623.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 6 Smart Turbo 7
Mozilla/5.0 (Linux; Android 6.0; VFD 500 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/49.0.2623.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 6 Smart Turbo 7
Mozilla/5.0 (Linux; Android 6.0; VFD 300 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 6 Smart Mini 7
Mozilla/5.0 (Linux; Android 6.0; VFD 300 Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/55.0.2883.77 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.26.93;] Android 6 Smart Mini 7
Mozilla/5.0 (Linux; Android 6.0; U FEEL Build/MRA58K; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/50.0.2661.86 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/139.0.0.22.93;] Android 6 U Feel