How to make tab bar auto-scroll when different tab selected.

Hi there. I'm using both of @MrOtherGuy's vertical tabs css and multi-row tabs below content css (I use a about:config user preference to switch between them).

The issue with each of them is that when a different tab is selected which is not currently visible (this can happen in many ways, such as doing a tab search, or jumping to top or bottom of tab list), the tab bar (either horizontal or vertical) does not scroll to bring the newly selected tab into view.

Is there a way to accomplish this with css? Like is there maybe some css method to detect how many tabs are currently visible in the tab bar, or whether the active tab is outside the visible area?