Why does everyone like vertical tabs? Today my tab icons are so small because I have so many. Monitors are wider than they are taller. What am I missing?
What you're missing is that "vertical tabs" in this context isn't talking about tabs literally turned on their side. We're talking about tabs that are still horizontal, but instead of arranging the tabs along the top of the screen, and shrinking their width when there's no room left, they're given a fixed width and arranged in a vertical list on one side of the screen. The best implementations of this (such as Sidebery, which the previous screenshot is from) also allow tabs to be nested in a collapsible tree structure.
You sound like you'd really like the tree-style tabs offered by Sidebery on Firefox, or that's built into Edge. Give it a try!
It has better customization, better performance, and tab groups. I used TST for many years, switched to Sidebery only a few months ago. You can do stuff like set it to where tabs only activate on releasing the mouse, so you can rearrange unloaded tabs without activating them, or make it so middle clicking the tab close button unloads it instead. You can also rename tabs!
Exactly. The monitors are wide, but websites usually are not. They are made with smartphones in mind which are of course vertical.
So you either have dead space on websites or on sites that do scale (like this one right here), I'd actually prefer it to be more compact, since I find it more comfortable to read comments that are less wide.
Firefox has "minimum tab width" which takes care of exactly that and works perfectly. Unlike an "experimental" feature in some surveillance Browser by Google