Integrates well with themes, the expand sidebar on hover doesn't work for me (librewolf-firedragon). It would be good to have an option of 'alternative colors' in rows to see multiple tabs more clearly.

A good straight-forward simple extension for vertical tabs without bloat. Two features I'd like to see: (1) Double click to close tabs (important for Mac laptop users as middle click is not available on trackpad) and (2) Respect Simple Tab Groups tab groupings and display only tabs for the active group. Many other vertical tab extensions can do this.

Beautiful UI! Better pinned tab without text and add tabsearch

Its smoother than other similar extension, also matches the theme used.
Only change i request is that to change the pinned tabs to icons.