You just reminded me that I should update this :).
Source added to Repo.
(Click me) Repo Updates, optimization updates, bug fixes, support for 'unload tab' extensions
pin unpin, containers, drag to new window, free up sidebar, themes support
![functionality](https://github.com/soulhotel/Vertical-Tabs-Firefox-CSS/assets/155501797/46b0c09b-0599-4e5a-8af8-1cb0ad3255fb)
(Click me) auto-hide tabs options (overlay content or push content to side), and more
![autohide 1](https://github.com/soulhotel/Vertical-Tabs-Firefox-CSS/assets/155501797/28471586-47b8-4c6b-bf8e-6c60dba21e79)
![autohide 2](https://github.com/soulhotel/Vertical-Tabs-Firefox-CSS/assets/155501797/0e556e81-c6e9-4d75-9cb9-5629a8ced99e)
Not just in a release.zip.