Finder opens every folder in a new window on a Mac
· 5 min read
When every double-click in Finder opens a new window instead of replacing the one you are in, the toolbar is almost always hidden. Choose View, Show Toolbar (or press Option-Command-T) and folders open in the same window again. If the toolbar is already showing, something is holding the Command key down, whether that is you, Sticky Keys or a faulty keyboard, and the fixes for that are below.
The hidden toolbar
A Finder window without its toolbar has no back and forward buttons, so Finder falls back to an older way of working: each folder you open gets a window of its own. It is easy to hide the toolbar without meaning to, because Option-Command-T is one key away from Command-T, the shortcut for a new tab.
- Click the Finder window that is misbehaving.
- Choose View, Show Toolbar.
- Double-click a folder to check it now opens in place.
If a window you open later has no toolbar, do the same there. While you are in the View menu, Show Path Bar and Show Status Bar are worth turning on too. The path bar shows where the current folder sits, and you can double-click any folder in it to jump straight there.
A held Command key, and the tabs setting
Holding Command while you double-click a folder opens it separately: in a new tab if “Open folders in tabs instead of new windows” is on in Finder Settings, General, and in a new window if it is off. If every folder opens separately even with the toolbar showing, something is holding Command down.
- Sticky Keys. System Settings, Accessibility, Keyboard, Sticky Keys lets a modifier key stay pressed after you let go of it, so a single press of Command applies to your next click. Turn Sticky Keys off if you did not mean to have it on.
- A stuck key. Debris under a key or a worn switch can leave Command pressed. Keyboard Viewer shows it: turn on the input menu in the menu bar (System Settings, Keyboard, then Edit next to Input Sources), then choose Show Keyboard Viewer from that menu. A key that stays highlighted while your hands are off the keyboard is stuck. Try another keyboard to confirm.
It is worth turning on “Open folders in tabs instead of new windows” regardless, so a deliberate Command-double-click gives you a tab rather than another window to manage.
Close or merge the windows you already have
After a while of this, Finder can have a dozen windows open. Two commands tidy them up.
- Window, Merge All Windows gathers every Finder window into one, with each former window as a tab.
- Option-Command-W, or holding Option while you click a window’s red close button, closes every Finder window at once.
Moving around inside one window
Once folders open in place, a few keys make one window enough for most work.
- Command-Down Arrow opens the selected folder; Command-Up Arrow goes to the folder that contains the current one.
- Command-[ and Command-] go back and forward, as in a browser.
- Column view (Command-3) shows each level of the path side by side, so you can move up and down without opening anything new.
- Command-T opens a new tab when you do want two folders side by side, and you can move files between them by dropping them on a tab’s title.
If you like separate windows for some folders, Option-double-click opens a folder in its own window and closes the one you came from, so the count never grows.
Windows that appear by themselves
Some extra windows have nothing to do with double-clicking.
- After a restart. Finder reopens the windows that were open when you shut down. Stop a Mac reopening windows after a restart covers the setting.
- New windows that open to Recents. “New Finder windows show” in Finder Settings, General sets the folder a new window starts in; make Finder open to the folder you use explains the choices.
- Folders on the desktop. A folder on the desktop always opens in a new window, because the desktop is not a window that can be replaced.
- Disk images. Many app installers open a Finder window as soon as you open them. That is a setting inside the disk image, not one of yours.
- Dragging over a folder. Holding a dragged file over a folder springs it open so you can drop deeper inside. Drag a file into a folder several levels deep explains how to control the delay.
Other Finder settings people go looking for
Once Finder behaves, the next things people want are often settings that are buried in menus or need a Terminal command. Mainspring shows those as one-click power-ups: the full path in the Finder title bar, folders kept on top, every file extension shown, hidden files visible, and a Quit command for Finder itself. Each is a real macOS setting, snapshotted before it changes so it flips back in one click, and the Finder Power recipe applies a set of them together and reverts them together. Mainspring runs on macOS 13 Ventura or later, has a free one-day trial with every feature, and costs $29 once for up to three Macs. The toolbar fix above needs nothing but the View menu.
Questions
Why does a folder on my desktop open a new window even with the toolbar showing? The desktop is not a Finder window, so there is nothing to replace. Open the Desktop folder in a Finder window with Shift-Command-D and work from there instead.
Can I make Command-double-click open a window instead of a tab? Yes. Turn off “Open folders in tabs instead of new windows” in Finder Settings, General.
Is there any reason to hide the toolbar? It suits people who like one window per folder and a plainer look. Most people are better off with it showing.