Latest Firefox Mobile 54 user agents:

User Agent Platform Device
Mozilla/5.0 (Android 9; Mobile; rv:54.0) Gecko/54.0 Firefox/54.0 Android 9 Unknown
Mozilla/5.0 (Android 8.1.0; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 8 Unknown
Mozilla/5.0 (Android 8.0.0; Mobile; rv:54.0) Gecko/54.0 Firefox/54.0 Android 8 Unknown
Mozilla/5.0 (Android 7.1.2; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 7 Unknown
Mozilla/5.0 (Android 7.1.2; Mobile; rv:54.0) Gecko/54.0 Firefox/54.0 Android 7 Unknown
Mozilla/5.0 (Android 7.1.1; Mobile; rv:54.0) Gecko/54.0 Firefox/54.0 Android 7 Unknown
Mozilla/5.0 (Android 7.1.1; Mobile; rv:54.0) Gecko/20100101 Firefox/54.0 Android 7 Unknown
Mozilla/5.0 (Android 7.0; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 7 Unknown
Mozilla/5.0 (Android 7.0; Mobile; rv:54.0.1) Gecko/54.0.1 Firefox/54.0.1 Android 7 Unknown
Mozilla/5.0 (Android 7.0; Mobile; HUAWEI H1711 Build/HuaweiH1711; rv:54.0) Gecko/54.0 Firefox/54.0 Android 7 Ascend XT2
Mozilla/5.0 (Android 6.0; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 6 Unknown
Mozilla/5.0 (Android 6.0; Mobile; rv:54.0.1) Gecko/54.0.1 Firefox/54.0.1 Android 6 Unknown
Mozilla/5.0 (Android 6.0.1; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 6 Unknown
Mozilla/5.0 (Android 6.0.1; Mobile; HUAWEI H1611 Build/HuaweiH1611; rv:54.0) Gecko/54.0 Firefox/54.0 Android 6 H1611
Mozilla/5.0 (Android 5.1; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 5 Unknown
Mozilla/5.0 (Android 5.1; Mobile; rv:54.0.1) Gecko/54.0.1 Firefox/54.0.1 Android 5 Unknown
Mozilla/5.0 (Android 5.1; Mobile; rv:54.0) Gecko/54.0 Firefox/54.0 Android 5 Unknown
Mozilla/5.0 (Android 5.1.1; Tablet; rv:54.0.1) Gecko/54.0.1 Firefox/54.0.1 Android 5 Unknown
Mozilla/5.0 (Android 5.1.1; Tablet; rv:54.0) Gecko/54.0 Firefox/54.0 Android 5 Unknown
Mozilla/5.0 (Android 5.1.1; Mobile; rv:54.0) Gecko/20100101 Firefox/54.0 Android 5 Unknown