Supernova features a single dynamic toolbar, presenting frequently used and contextual options based on the tab
or Space that is currently active. Take full control by customizing the toolbar and window layout to perfectly fit your
More than just a refreshed set of graphics, Supernova introduces beautiful icons with a more consistent visual
style unique to Thunderbird. Our new designs remain sharp and pixel-perfect at any density setting.
Working with multiple monitors and display resolutions? Supernova lets you dial in the perfect density settings
and font sizes for the entire application, with just a single click from the App Menu.
Supernova gives you more control by introducing sortable Folder Modes. Display all of your Tags in the Folder
Pane, turn on and off Local Folders, or move your favorite Folder Mode sections up and down with one click. Less
scrolling, more productivity.
Supernova continues to iterate on the modernized Address Book introduced in Thunderbird 102. You’ll enjoy a new
tabular view, an improved Edit view, delete buttons, and better accessibility.
Supernova substantially improves Thunderbird’s keyboard navigation and screen reader accessibility across the
entire application. We’ve also greatly expanded the ability to navigate Mail content and buttons using the TAB and
As part of an ongoing effort to modernize and upgrade Thunderbird’s Calendar, Supernova introduces an improved
“mini-month” layout, improvements to the day/week/month grid, a pleasing color palette, and several more minor changes.
More to come!
Supernova is constantly evolving. Throughout the next year, we’ll deliver many improvements to existing Supernova
features and introduce brand new ones. Upgrade to version 115 and experience the future of Thunderbird!