The falling-out panels in the full screen mode

[ChromiumIQ]

There is a mouse gesture action named "Show tab list menu".
Of course, Firefox style is more convenient.
Making tab bar behave like that is not easy to maintain.

It will be difficult possible to support, but the spent efforts will not be gone in vain. You will be the first who will implement this property in family of browsers on the basis of Chromium. Cent attracts users first of all of usability at the same time productivity one of the best. If there is an implementation of the offered property, then users will become more. I have many acquaintances who used Chrome earlier, having got acquainted with steel Cent on it do not want to work, come back.

You only should begin, and everything will happen next.