, ▁then ▁Moz illa ▁will ▁consider ▁again ▁developing ▁F enne c ▁for ▁the ▁platform . ▁ ▁Tr istan ▁N it ot , ▁president ▁of ▁Moz illa ▁Europe , ▁has ▁said ▁that ▁it ' s ▁unlikely ▁that ▁a ▁Black Ber ry ▁OS ▁version ▁will ▁be ▁released , ▁cit ing ▁Black Ber ry ' s ▁limited ▁operating ▁system ▁as ▁the ▁reason . ▁Moz illa ▁has ▁no ▁plans ▁to ▁develop ▁Firefox ▁for ▁the ▁Sym bian ▁platform , ▁or ▁web OS . ▁An ▁uno fficial ▁port ▁to ▁Web OS ▁was ▁made , ▁but ▁is ▁no ▁longer ▁maintained ▁as ▁of ▁ 2 0 1 1 . ▁ ▁An ▁uno fficial ▁port ▁is ▁available ▁for ▁the ▁P and ora ▁hand h eld ▁console . ▁ ▁Firefox ▁ 5 2 . 0 . 2 ▁was ▁the ▁last ▁version ▁to ▁run ▁on ▁AR M ▁devices ▁without ▁NE ON ▁support , ▁such ▁as ▁those ▁with ▁T eg ra ▁ 2 . ▁ ▁Add - ons ▁▁ ▁Firefox ▁for ▁Android ▁allows ▁installation ▁of ▁them es ▁and ▁extensions . ▁ ▁Re ception ▁▁ ▁The ▁main ▁critic isms ▁of ▁the ▁browser ▁pre - version ▁ 1 4 ▁were ▁slow ▁brow sing ▁speed , ▁lack ▁of ▁plugin ▁support ▁and ▁performance ▁issues . ▁To ▁address ▁these ▁concerns , ▁Moz illa ▁red es igned ▁the ▁browser ▁in ▁version ▁ 1 4 . 0 , ▁adding ▁Flash ▁support , ▁impro ving ▁start - up ▁speed , ▁as ▁well ▁as ▁other ▁enh anc ements . ▁This ▁update ▁dram atically ▁improved ▁Firefox ▁for ▁Android . ▁, ▁the ▁average ▁user ▁rating ▁of