These images are not final but represent the direction of the new browser project so far. We can see that menus, address bars, quick access, bookmarks, the main screen, and other elements have been redesigned. Even this new logo is not even among the options Mozilla has offered mid-year to ask for users' opinions.

In mid-2018, the development of the Firefox browser for the Android system entered the maintenance phase, which meant that it had not yet received new features and updates on Androy, and the reason behind it: Fenix.
"Fenix" is the main name of what can become the future Firefox in Android where while working on this browser Firefox has been setting up a new generation of browsers for some time, not only with Quantum on the desktop, but also with Android, Focus as a lightweight browser to protect your privacy, and then Firefox Rocket or Firefox Lite, a mini version with blocking ads, data saving, turbo mode and more ...
Fenix will be the new version of Firefox, yet the development of Fenix still has a long time to go.