Hello guys,
I have 2 Gmail accounts setup in X-Notifier, both have 2-step Auth set, and by the end of 2014 I was facing a problem where the 2-factor auth was being requested everytime I start firefox... BUUUUUT it only did that with one of the accounts (not the primary). The problem seemed to be gone with an update by the end of December/2014 and everything was fine until this week (2015-02-16) when it started to ask for verification code in the same account again and again everytime I start firefox and even in the middle of navigation.