Latest Facebook 391 user agents:

User Agent Platform Device
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/80.0.3987.99 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/117.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/116.0.0.0 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE Blade A7s Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/108.0.5359.128 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Blade A7s
Mozilla/5.0 (Linux; Android 9; ZTE A2019G Pro Build/PKQ1.181203.001; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Axon 9 Pro
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.105 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/105.0.5195.136 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; Z6621O Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/104.0.5112.97 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Optus X Vista
Mozilla/5.0 (Linux; Android 9; Z6201V Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Blade A7
Mozilla/5.0 (Linux; Android 9; Z5151V Build/PKQ1.190924.002; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/77.0.3865.92 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Visible R2
Mozilla/5.0 (Linux; Android 9; Z3351S Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Quest 5
Mozilla/5.0 (Linux; Android 9; YK_P30 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 YK P30
Mozilla/5.0 (Linux; Android 9; YK_P30 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 YK P30
Mozilla/5.0 (Linux; Android 9; Y9Plus Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Y9 Plus
Mozilla/5.0 (Linux; Android 9; Y4800 Build/PPR1.180610.011; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/107.0.5304.91 Mobile Safari/537.36 [FB_IAB/FB4A;FBAV/391.1.0.37.104;] Android 9 Y4800
Mozilla/5.0 (Linux; Android 9; XR4500 Build/V20220916; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/135.0.7049.100 Safari/537.36 [FB_IAB/FB4A;FBAV/391.0.0.17.104;] Android 9 XR4500
Mozilla/5.0 (Linux; Android 9; XR4500 Build/V20220916; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/134.0.6998.135 Safari/537.36 [FB_IAB/FB4A;FBAV/391.0.0.17.104;] Android 9 XR4500
Mozilla/5.0 (Linux; Android 9; XR4500 Build/V20220916; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/133.0.6943.137 Safari/537.36 [FB_IAB/FB4A;FBAV/391.0.0.17.104;] Android 9 XR4500
Mozilla/5.0 (Linux; Android 9; XR4500 Build/V20220916; wv) AppleWebKit/537.36 (KHTML, like Gecko) Version/4.0 Chrome/132.0.6834.163 Safari/537.36 [FB_IAB/FB4A;FBAV/391.0.0.17.104;] Android 9 XR4500