The tabs are to the side rather than along the top.

This allows you to see the text in the tab when you have several tabs open.

Ideally tabs should be indented so you can see which tab you linked the page from.

The best implementation is the Firefox extension Tree Style tab https://addons.mozilla.org/en-GB/firefox/addon/tree-style-ta...

But simpler vertical tabs are on Vivaldi, OmniWeb which had them since the mid 1990s but unfortunately has not kept up with allowing other extensions, Opera used to have them when it was not Chrome. Chrome had them at one stage but reading the issues on that the developers really showed a complete lack of understanding.

Gotcha. Thanks for clearing that up. And yes, the indentation of tabs is actually a good idea.

Although, iOS has tab groups now. I rarely use them because the menu is out of sight so I forget. But on macOS they’re convenient for when I’m researching a topic.