[ticket/12061] Fix keyboard shortcut in firefox

PHPBB3-12061
Merge remote-tracking branch 'Elsensee/ticket/12061' into develop-olympus

* Elsensee/ticket/12061:
  [ticket/12061] Fix keyboard shortcut in firefox
[ticket/10023] Make password change notification more noticeable

PHPBB3-10023
Merge remote-tracking branch 'Elsensee/ticket/10023' into develop-olympus

* Elsensee/ticket/10023:
  [ticket/10023] Make password change notification more noticeable