• 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!

      • Just occurred to me, now I get it. That makes a lot of sense. I think I used to use some tree tab extension ages ago.

        I won’t touch edge with a 10 foot pole. Data collecting, nagging, pos browser.

        • 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!

    • They are awesome. To me at least, but only if you save space by hiding the regular tab bar and it is easier to manage tabs since they are now closer together. Also, if you make the right --or left, it is up to you, I pick right-- sidebar auto hide and letting just the icons show. You do gain a lot of extra space. Mind you, you need to enable CSS via About:Config. On too of, before, using say, Sideberry. I like you thought I did not like it but now that I have tried it. I simply will not go back. I have a userChrome.css file that place on all my machines on a fresh install, now.