The new release of Thunderbird
, codename Supernova
, changes some key elements of the UI to be more "modern".
For those who wish to keep the new release but modify some elements to semi-reflect the old UI, then here are some
steps to accomplish this.
- Click the hamburger menu in the top right corner and select
Settings
. - Click the
General
tab. - Scroll to the bottom and click the
Config Editor
button.