[marksellers]

But I also need the horizontal space! I very often tile windows side by side to allow developing while seeing the results, or while reading documentation.

Maybe I'm just picky. I don't know. Chrome does the job pretty well though, even with the bookmarks bar turned on.

A vertical tabs bar would make it impossible to use many sites, like GitHub.

[quesera]

> A vertical tabs bar would make it impossible to use many sites, like GitHub.

I use vertical tabs exclusively (for many, many years), and GitHub constantly. No problems whatsoever.

[marksellers]

GitHub already deals with a window of half screenwidth poorly, as in requiring horizontal scrolling to see things. That's what I meant.

[kadal]

Win tree style tabs you can autohide. Indo that to reduce distractions