Re-arrangement of "New Tab " "+" Button
If you place the Tab bar vertically (either on right or left side), you always have the trash-bin fixed on the bottom beneath the tabs.
However the "New Tab" button (+) is always below the last tab, so if you have multiple tabs open then you have to scroll all the way down to find it.
For me it would be logical to put it next to the bin!
BTW: Scrolling in the tabs is really cool, good work!