Firefox in the play store app on my phone is stuck at version 57 updated in November 2017 even though two new versions were made available since then - 58.0.1 on January 29th and 58.0.2 on February 7th. Clearing the play store cache didn't help. There is a critical vulnerability in 57, so it got me worried. I posted this issue in the google play support forum (https://productforums.google.com/forum/ ... Rb3eepO1V4) and some 'community expert' suggested that I should inform the developers. Personally I don't see how it can be a developers issue, but after all I am not omniscient, so there - is it really something a developer can control?
Currently I am updating firefox manually from http://ftp.mozilla.org/pub/mobile/releases/