Up next Mavericks: Snooze reminders for longer than 15 minutes Published on 23 October 2013 Tagsanimation,mouse,OS X Mavericks,Safari When you use a mouse to close tabs in Safari 7.0 on OS X Mavericks, the tab bar will wait to resize the remaining tabs until you move your mouse away. This makes it convenient to keep the mouse in the same place while you close tabs.