Форум поддержки Firefox для Android

On android playstore, I am getting a message that a firefox update is available. But there is no description about the update. How to find out authenticity of an android app firefox update and its version and reason for the release.

I have forgotten my Gmail account password Gmail account has been deleted from my mobile. There was no recovery email and phone number in my gmail account. Now I want to recover my [edited] @gmail.com gmail account. Please help me