In Chrome, how can I reduce the empty space between bookmarks in the toolbar?

Solution 1:

No, there's no way to do this. Chrome is very strict about UI. You have very few options to customize UI. Anyway, you can report an issue to Google anytime

Solution 2:

from reading on another place:

go to the properties of your chrome shortcut and at the end of the target line add a space then: --disable-new-menu-style

example: "C:\Program Files\Google\Chrome\Application\chrome.exe" --disable-new-menu-style