Redesigned Duplicate Tab Dialog: New clear options: Switch & Close, Keep Tab, and Go Back.
Close All Duplicates: Added a global "Close all duplicate" button in the popup to clean up your session in one click.
Group by Domain: Organize open tabs by domain for better visibility and management.
Staticstics: Can view the number of duplicate tabs identified and closed, its stored in the browser,

full changelog here: https://github.com/aghontpi/Tab-Options/releases/tag/1.5.0

In terms of functionality,
Update the export option to include Firefox.

more at here: https://github.com/aghontpi/Tab-Options/releases/tag/v1.4.1