Where to find default app settings on your Mac

On macOS Ventura and later, you change default apps through System Settings, not through individual app preferences. Open System Settings from your Applications folder or by clicking the Apple menu and selecting System Settings. Then navigate to the Default Apps section — you'll find it in the left sidebar under a category like "General" or directly listed depending on your macOS version.

Each app category — web browser, email client, calendar, maps, music player, and others — has its own row. Click the row for the app type you want to change, and a dropdown menu shows all compatible apps installed on your Mac. Select the one you want as your default, and the change takes effect when ready.

Key Takeaways

  • Default app settings live in System Settings under Default Apps, not in individual app menus.
  • You can set a different default for each app category: browser, email, calendar, maps, music, and more.
  • Changes take effect right away without restarting your Mac.
  • Only apps that support a particular function appear in that category's dropdown — you cannot set an incompatible app as default.

Changing your web browser default

Click the row labeled "Web Browser" in System Settings' Default Apps section. A dropdown appears showing Safari, Chrome, Firefox, Edge, and any other browsers you have installed. Select the one you want, and all links you click in Mail, Messages, and other apps will open in that browser from now on.

If you do not see your preferred browser in the list, the app may not be installed or may not support being set as default. Reinstalling the browser or updating it to the latest version usually fixes this. Some older or less common browsers do not register with macOS as default-capable.

Setting a default email client

In the Default Apps section, find the row for "Mail" or "Email Client." Click it to see Mail, Outlook, Gmail (if you use it through a web wrapper), Thunderbird, and other email apps you have installed. Select your preferred email app, and mailto: links in web pages and other apps will now open in that client.

If you use Gmail exclusively through your web browser, you may not see a Gmail app in this list — Gmail's web version does not register as a default email client on Mac. In that case, you can set Mail as default and configure it to forward to your Gmail account, or use a third-party email client that supports Gmail.

Changing calendar, maps, and music defaults

The Default Apps section includes separate rows for Calendar, Maps, and Music. Click any of these to choose which app handles those functions. For example, if you prefer Google Maps over Apple Maps, click the Maps row and select Google Maps from the dropdown.

Calendar defaults matter when you click a date link in an email or web page — it determines whether the event opens in Apple Calendar, Outlook, or another calendar app. Music defaults control which app plays when you click a music link. These changes are less common than browser or email changes, but the process is identical.

What happens when you change a default app

Once you select a new default, macOS stops using the old one for that function. Links and file types associated with that category now open in your new choice. You do not need to restart your Mac or close and reopen apps — the change is active when ready.

If you change your mind, return to System Settings and select a different default. You can switch back and forth as often as you want. Your old default app remains installed and usable; changing the default just means it will not open automatically when you click a link or file of that type.

Troubleshooting when an app does not appear in the list

If an app you want to use does not show up in a default apps dropdown, the app may not support being set as default for that function. Not all apps register with macOS as capable of handling every category. For example, some text editors cannot be set as the default for opening PDFs.

Try updating the app to its latest version — developers sometimes add default app support in updates. If the app still does not appear after updating, check the app's documentation or support page to confirm it supports that function. If it does not, you may need to use a different app or open files manually by right-clicking and selecting "Open With."

Using "Open With" when you want a one-time change

If you want to open a file or link in a different app just once, without changing your default, right-click the file or link and select "Open With" from the menu. This shows all compatible apps on your Mac. Choose the one you want, and that single file or link opens there — your default stays unchanged.

This method is faster than changing your default in System Settings if you only occasionally need a different app. For example, if Safari is your default browser but you want to open one link in Firefox, "Open With" is quicker than switching your default and switching it back.

Frequently Asked Questions

Can I set different defaults for different file types?

Not through the Default Apps section — that sets one default per category. However, you can right-click a specific file, select "Open With," choose an app, and then click "Always Open With" to set that app as the default for just that file type. This gives you more granular control than the system-wide defaults.

What if I delete an app that is set as my default?

macOS automatically reverts to the next available app in that category. For example, if you delete your default browser, Safari becomes the default instead. You do not need to manually reassign a default — the system handles it.

Do default app changes affect all user accounts on my Mac?

No. Each user account on your Mac has its own default app settings. If you share your Mac with others, changing your defaults does not change theirs. Each person can log in and set their own preferences in System Settings.

Why does my default app keep changing back?

Some apps, particularly web browsers, may reset themselves as default when you update them or restart your Mac. This is usually a bug in the app. Try updating to the latest version, or contact the app's support team if the problem continues. You can always return to System Settings and reset your preferred default.

Can I set a default app for opening PDFs or other file types?

The Default Apps section in System Settings does not include file type defaults — only app categories like browser and email. To set a default for PDFs or other files, right-click a file of that type, select "Open With," choose your preferred app, and click "Always Open With." This sets that app as the default for all files of that type.