UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0

Steps to reproduce the problem:
1. Visit a http website in a foreign language
2. Set zoom to 75%
3. Observe 'google translate' and 'zoom' and 'not secure' indicators all in the address bar
4. Shrink the window as far as you can horizontally
5. Open https://google.com/
6. Set zoom to 100%
7. Shrink the window as far as you can horizontally

What is the expected behavior?
The minimum size for the first scenario (a japanese webpage w/zoom set, in my specific case) used to be considerably smaller before the new UI theme, and my extension icons were visible at much smaller sizes. The minimum should be closer to what it is for the Google homepage, if not smaller than that.

What went wrong?
Changing tabs causes the browser to recompute what the minimum size of a tab should be, and as soon as you tap the right edge to try to resize, it enforces the new minimum size. The minimum sizes are now very big for common scenarios.

Now I'm stuck with a very wide window filled with blank space, and if I zoom out to make the content smaller *the window must become bigger*. If I want to see any of my extensions the window must become bigger still.

The cause of this seems to be that the minimum size is dynamically computed based on all the goop currently visible in the toolbar. The new theme increased margins and moved new things into the address bar - like the profile icon that used to be in the title bar, and that absurd zoom icon, using up space to draw my attention to something that is already in the hamburger menu. I can't get rid of either of those icons so they are just eating up horizontal space on my desktop now, forever, for each Chrome window I want to have open that would otherwise be small.

Did this work before? Yes The old theme

Chrome version: Version 70.0.3524.0 (Official Build) canary (64-bit)  Channel: canary
OS Version: 10.0
Flash Version: 

Funnily enough, secure origins like 'chrome://settings' have a larger minimum width because of that 'Chrome' origin indicator.

If I switch to a tab with a crowded toolbar while the window is small, everything compacts the way it should, so there's not really a good reason for forbidding me from shrinking the window. The 'not secure' indicator stays visible at the cost of the address (fine, I guess?), and the translate and bookmark and profile icons all stay visible, because apparently those are important - seems to work fine even if I disagree with it.
 

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	forced large size.png 18.9 KB View Download