Thunderbird: Free Your Inbox
Landing on Thunderbird Daily later today: global font size setting control.
This will allow you to change the font size of the entire application, independently from the zoom level of single messages.
It currently doesn't work for dialogs, but it's a start. More improvements soon
Bobinas P4G is a social network. It runs on GNU social, version 2.0.1-beta0, available under the GNU Affero General Public License.
All Bobinas P4G content and data are available under the Creative Commons Attribution 3.0 license.