Shrinking the address bar width in browsers (opens in new tab)

Thats true, but wasting space with a container that's too big and almost never fully used is also questionable. And a lof of information can quickly become to much information so having a lot in bookmarks there doesn't seem practical to me.

I just tried this and it works well so I'm sticking with it.

What happens when you want to navigate to a bookmarked site from the current tab?

This is true, but even if you add half a screen of bookmarks you will still get at least 600pixels left for the address bar, more than enough to identify fake sites.