When the Dock is placed at the bottom of your display, it can take up quite a bit of space, space you need for your Finder and and app windows. To free up space, move the Dock to the left or right side of your display. Just open System Preferences and select the Dock Preference Pane. From there you can set the position of the Dock on your Mac.
Curious on how much space is on your Mac? Or do you want to see what is taking up your space? Go to the Apple Menu, select About This Mac, and click on the Storage tab in the window that opens. Your Mac will show you how much space you have as well as show a bar chart showing what is taking up your space by category.
By default, a new Finder window opens to your recent files. To change this to open a folder, open your Finder Preferences. Under the General tab, you can set what your new Finder windows will open to. Just select from the dropdown menu which folder you want. Select Other in the dropdown to select a different folder from the ones that are shown.
Are you wanting to use a different browser on your Mac? Maybe switch to Chrome, or switch back to Safari from Chrome or Firefox? To set your default browser on your Mac, just open your System Preferences and select the General Preference Pane. You’ll see an option to set the default browser. Select the browser you want and close System Preferences. Now when you click on a link from your email or another app, it will open in your selected browser.
On the Mac, you can quickly turn on and off the Do Not Disturb through the Notification Center or Today View. Just click on the three horizontal lines in the upper right corner of your display to show either the Notification Center or Today View. Swipe down on your trackpad or mouse, and toggle Do Not Disturb. If you turn it on, it will turn off automatically the following day.
For several versions of Mail, you’ve been able to select a message and in the Menu Bar you would choose Message > Move To Predicted Mailbox to file the email in the suggested mailbox. If the Move To command is disabled, this means the Mail app hasn’t yet learned how to move messages like the selected one. Once it sees you move messages from your mother into your Family mailbox, for instance, it will suggest that destination in the future. In Mojave’s Mail, there’s also now a Move To toolbar button. If it can predict where the message will go, just click it; if not, click and hold to bring up a menu of all your mailboxes.
For years you used the App Store on your Mac to install operating system updates as well as app updates. With macOS Mojave you still update your apps through the App Store, but Apple moved operating system updates to a new preference pane in System Preferences, appropriately called Software Update. This preference pane replaces the older App Store preference pane. The App Store preferences are now appropriately located within the App Store preferences.
To use it, you open System Preferences > Software Update to check your version of macOS and access available updates — there will be an Update Now button to click. You should also visit this pane to tell your Mac how to best handle system and app updates: Don’t select “Automatically keep my Mac up to date” because updates might come at an inconvenient time for you. Instead, Id recommend you click Advanced and then select “Check for updates” and “Install system data files and security updates”—they’re important. Unless you’re low on drive space, selecting “Download new updates when available” is fine, since that will make updating faster. However, keep “Install macOS updates” and “Install app updates from the App Store” off so you can choose when to update.
The System Preferences app on the Mac is where you setup your default preferences for your Mac and it contains about 30 icons, each leading to a specific preference pane. Rather than opening System Preferences and then looking for the preference pane you want to open, you can jump directly to the desired pane. Just click and hold on the System Preferences icon in the Dock, and choose a preference pane from the pop-up menu.