Latest Firefox Mobile iOS 12 user agents:

User Agent Platform Device
Mozilla/5.0 (iPhone; CPU iPhone OS 7_1_2 like Mac OS X) AppleWebKit/531.1 (KHTML, like Gecko) FxiOS/12.6k2228.0 Mobile/08X365 Safari/531.1 iOS 7 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 12_5_7 like Mac OS X) AppleWebKit/536.0 (KHTML, like Gecko) FxiOS/12.9w9779.0 Mobile/56T679 Safari/536.0 iOS 12 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 13_5_1 like Mac OS X) AppleWebKit/536.1 (KHTML, like Gecko) FxiOS/12.4r2215.0 Mobile/73F277 Safari/536.1 iOS 13 iPhone
Mozilla/5.0 (iPad; CPU iPad OS 11_4_1 like Mac OS X) AppleWebKit/534.2 (KHTML, like Gecko) FxiOS/12.8n2637.0 Mobile/26M254 Safari/534.2 iOS iPad
Mozilla/5.0 (iPad; CPU iPad OS 17_1 like Mac OS X) AppleWebKit/536.1 (KHTML, like Gecko) FxiOS/12.4r1640.0 Mobile/22I833 Safari/536.1 iPadOS 17 iPad
Mozilla/5.0 (iPhone; CPU iPhone OS 3_1_3 like Mac OS X) AppleWebKit/533.0 (KHTML, like Gecko) FxiOS/12.5l2957.0 Mobile/90C588 Safari/533.0 iOS 3 iPhone
Mozilla/5.0 (iPad; CPU iPad OS 17_3_1 like Mac OS X) AppleWebKit/533.0 (KHTML, like Gecko) FxiOS/12.9b4051.0 Mobile/53X782 Safari/533.0 iPadOS 17 iPad
Mozilla/5.0 (iPhone; CPU iPhone OS 4_3_5 like Mac OS X) AppleWebKit/534.0 (KHTML, like Gecko) FxiOS/12.6k2771.0 Mobile/31P655 Safari/534.0 iOS 4 iPhone
Mozilla/5.0 (iPad; CPU iPad OS 14_8_1 like Mac OS X) AppleWebKit/532.1 (KHTML, like Gecko) FxiOS/12.0a5592.0 Mobile/28A325 Safari/532.1 iPadOS 14 iPad
Mozilla/5.0 (iPhone; CPU iPhone OS 15_0 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/12.0 Mobile/15E148 Safari/604.7 iOS 15 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 9_3_5 like Mac OS X) AppleWebKit/534.1 (KHTML, like Gecko) FxiOS/12.8q2247.0 Mobile/01W099 Safari/534.1 iOS 9 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 14_8_1 like Mac OS X) AppleWebKit/532.2 (KHTML, like Gecko) FxiOS/12.2w3220.0 Mobile/46Y497 Safari/532.2 iOS 14 iPhone
Mozilla/5.0 (iPad; CPU iPad OS 11_4_1 like Mac OS X) AppleWebKit/536.2 (KHTML, like Gecko) FxiOS/12.5v0624.0 Mobile/51C218 Safari/536.2 iOS iPad
Mozilla/5.0 (iPad; CPU iPad OS 17_2_1 like Mac OS X) AppleWebKit/536.1 (KHTML, like Gecko) FxiOS/12.8u4287.0 Mobile/67Q529 Safari/536.1 iPadOS 17 iPad
Mozilla/5.0 (iPhone; CPU iPhone OS 13_7 like Mac OS X) AppleWebKit/534.1 (KHTML, like Gecko) FxiOS/12.1b1049.0 Mobile/21H689 Safari/534.1 iOS 13 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 18_7 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) FxiOS/12.0.2 Mobile/15E148 Safari/604.1 iOS 18 iPhone
Mozilla/5.0 (iPad; CPU iPad OS 17_4 like Mac OS X) AppleWebKit/531.1 (KHTML, like Gecko) FxiOS/12.2l0277.0 Mobile/49D292 Safari/531.1 iPadOS 17 iPad
Mozilla/5.0 (iPhone; CPU iPhone OS 3_2_2 like Mac OS X) AppleWebKit/532.2 (KHTML, like Gecko) FxiOS/12.9n8854.0 Mobile/91I732 Safari/532.2 iOS 3 iPhone
Mozilla/5.0 (iPhone; CPU iPhone OS 10_3_4 like Mac OS X) AppleWebKit/536.2 (KHTML, like Gecko) FxiOS/12.4s2113.0 Mobile/07M521 Safari/536.2 iOS 10 iPhone
Mozilla/5.0 (iPad; CPU iPad OS 1_1_5 like Mac OS X) AppleWebKit/535.2 (KHTML, like Gecko) FxiOS/12.7p4763.0 Mobile/68A501 Safari/535.2 iOS iPad