STABLE version -- 4.2.10.171

[Admin]

I know what the difference is, for me, the active tab stays visible at all times and the tab strip scrolls with it to keep the tab in view, in both directions.

Btw, anyone playing with the "Scrollable TabStrip" option in flags should be careful, the browser won't even start for me if I enable it.

You can find and delete
"scrollable-tabstrip@1",
in your "User Data\Local State" to revert this change.