As a new idea, about vertical tabs

[sweet0670]

I use Firefox daily. I also use the extension "Tree Style Tab," but I thought it would be nice to create a vertical tab system unique to Firefox that offers the same usability, a similar UI system, and some degree of user customization.
The current implementation of vertical tabs is "limited" and "not very versatile," so
is it possible to create a "practical" vertical tab system unique to Firefox that is comparable to "Tree Style Tab"
and offers a full range of usability?
If possible, it would be great if I could switch between vertical tabs with the mouse wheel.

[Jon]

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