If scroll wheel switches tabs, what happens when you have enough tabs that they don't fit in the tabbar and the tabbar becomes scrollable? Does scrolling still

If scroll wheel switches tabs, what happens when you have enough tabs that they don't fit in the tabbar and the tabbar becomes scrollable? Does scrolling still switch tabs, or does it scroll the tabbar so you can find the tab you want to switch to? I believe in Firefox it does the latter. Chrome never has a scrollable tabbar (which has its own UX issues with lots of tabs), so doesn't have this problem... Looks like https://bugzilla.mozilla.org/show_bug.cgi?id=566510 https://bugzilla.mozilla.org/show_bug.cgi?id=566510 tracks the multiselect thing in Firefox and has seen some recent movement... That would indeed be very nice to have!