This combines multiple problems in one:
Tab-bar:
- For some reason there is this empty space at the top left only when not fullscreen (probably to grab)
- pinned tabs don't collapse on tiling
- The "v" button for tab menu is not removable
- There is a space between the "v" button and the window action buttons "_ [] x"
URL-bar:
- There are too many icons in the URL bar. Left: nonremovable Shield and Settings icon, too big HTTPS icon
- "Protection" and cookies could be combined in one menu
- the https icon could be hidden, icon only shown if its HTTP, and in red
- in general the icons could be smaller like in Chrome
- right side: Addons can place nonremovable entries in the URL bar, this sucks.
- Addons dont collapse
This results in a window that is unusable, no URL bar visible and only a single tab shown.
This is not a very edgy and rare scenario, it can happen quite fast, due to the problems I mentioned.
A solution would be to:
- collapse the pinned tabs, maybe to the side
- remove the empty space on the left
- remove some URL-bar icons
- make possible to remove Addon URLbar icons
- collapse pinned addons anyways