What the heck is tab overflow? I was confused as well:
By this point I think most people know the frustration that I had with how Mozilla handled the scrolling tab-bar in Firefox but it looks like they have found a good solution. By default I can now have a much more reasonable number of tabs open, in the area of 20-30, before the tabs start to scroll. Thank you Mozilla!
[Learn More About Firefox's Tab Overflow Fix!]
