Latest Facebook 255 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; vivo 1915 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Y19
Mozilla/5.0 (Linux; Android 9; TA-1032 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 3
Mozilla/5.0 (Linux; Android 9; STK-L22 Build/HUAWEISTK-L22; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Y9 Prime (2019)
Mozilla/5.0 (Linux; Android 9; SM-J810F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy J8
Mozilla/5.0 (Linux; Android 9; SM-J730FM Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy J7 Pro
Mozilla/5.0 (Linux; Android 9; SM-J701F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy J7 Core
Mozilla/5.0 (Linux; Android 9; SM-J530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.157 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy J5 (2017)
Mozilla/5.0 (Linux; Android 9; SM-J330FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.116 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy J3 (2017)
Mozilla/5.0 (Linux; Android 9; SM-G970F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy S10e
Mozilla/5.0 (Linux; Android 9; SM-G390W Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy Xcover 4
Mozilla/5.0 (Linux; Android 9; SM-A705FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A70
Mozilla/5.0 (Linux; Android 9; SM-A600FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A6
Mozilla/5.0 (Linux; Android 9; SM-A530F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.87 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A8
Mozilla/5.0 (Linux; Android 9; SM-A505FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A50
Mozilla/5.0 (Linux; Android 9; SM-A405FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/74.0.3729.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A40
Mozilla/5.0 (Linux; Android 9; SM-A405FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/101.0.4951.61 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A40
Mozilla/5.0 (Linux; Android 9; SM-A207F Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A20s
Mozilla/5.0 (Linux; Android 9; SM-A105FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A10
Mozilla/5.0 (Linux; Android 9; SM-A105FN Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/78.0.3904.90 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Galaxy A10
Mozilla/5.0 (Linux; Android 9; Redmi Note 7 Build/PKQ1.180904.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/79.0.3945.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/255.0.0.33.121;] Android 9 Redmi Note 7