All of a sudden my sidebar is gone and all my folders open in new windows instead of the same window. I looked in preferences and everything looks OK. Any way to fix this?
On the left of the finder window there should be a dot about halfway down. Drag that to the right and the side bar will appear.
Opening in a new window is how i prefer it but if you want to change it go to Finder > Preferences > General and there should be a tick box to 'open folders in new windows'. Just uncheck it.
Did you accidentally click the pill button on the right side of a Finder window? This will cause the behavior you describe. To return it to normal just click the pill again.
Did you accidentally click the pill button on the right side of a Finder window? This will cause the behavior you describe. To return it to normal just click the pill again.