Kwa nsanja ya Android losindikizidwa kutulutsidwa kwa msakatuli woyeserera Kuwona kwa Firefox 4.2, ΡΠ°Π·Π²ΠΈΠ²Π°Π΅ΠΌΠΎΠ³ΠΎ ΠΏΠΎΠ΄ ΠΊΠΎΠ΄ΠΎΠ²ΡΠΌ ΠΈΠΌΠ΅Π½Π΅ΠΌ Fenix Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π·Π°ΠΌΠ΅Π½Ρ ΡΠ΅Π΄Π°ΠΊΡΠΈΠΈ Firefox Π΄Π»Ρ Android. Π‘Π»Π΅Π΄ΠΎΠΌ ΡΠΆΠ΅ Π²ΡΡΠ»ΠΎ ΠΎΠ±Π½ΠΎΠ²Π»Π΅Π½ΠΈΠ΅ 4.2.1 Ρ ΡΡΡΡΠ°Π½Π΅Π½ΠΈΠ΅ΠΌ zofooka. ΠΠΎΠ²ΡΠΉ Π²ΡΠΏΡΡΠΊ ΠΎΠΏΡΠ±Π»ΠΈΠΊΠΎΠ²Π°Π½ Π² ΠΊΠ°ΡΠ°Π»ΠΎΠ³Π΅ Google Play (Π΄Π»Ρ ΡΠ°Π±ΠΎΡΡ Π½Π΅ΠΎΠ±Ρ ΠΎΠ΄ΠΈΠΌ Android 5 ΠΈΠ»ΠΈ Π½ΠΎΠ²Π΅Π΅). ΠΠ° Π·Π°Π²ΡΡΠ° zakonzedwa kumasula Firefox 75.
Kuwonetseratu kwa Firefox amagwiritsa Injini ya GeckoView, yomangidwa paukadaulo wa Firefox Quantum, ndi malaibulale angapo Mozilla Android Components, zomwe zimagwiritsidwa ntchito kale kupanga asakatuli Yang'anirani Firefox ΠΈ Firefox lite. GeckoView ndi mtundu wina wa injini ya Gecko, yopakidwa ngati laibulale yosiyana yomwe ingasinthidwe palokha, ndipo Android Components imaphatikizapo malaibulale omwe ali ndi zida zokhazikika zomwe zimapereka ma tabo, kumalizidwa kolowera, malingaliro osakira ndi mawonekedwe ena asakatuli.