Back and forward buttons disappeared.
My back and forward buttons in Safari 9.0 disappeared halfway through the morning today. Here's what I've already tried:
1. Customize Toolbar - the back and forward buttons are already there, but I tried dragging them on again and clicked "done",
2. under View, View Toolbar doesn't appear at all,
3. quit Safari and restart,
4. went to Library -> Preferences and got rid of com.apple.safari.plist and restarted.
I still don't have forward and back tools. I have to believe that I accidentally pressed some key combination that got rid of them, but can't figure anything out. I'm currently running OS 10.10.5.