How to Make Apps Open in Full Screen Mode on Mac Automatically

May 15, 2018 - 14 Comments

How to make Mac apps open in full screen mode automatically

Some Mac users really enjoy full screen mode for apps and windows, so much so that they might want to make Mac apps open in full screen mode automatically.

While there is no system wide setting in Mac OS to make apps default to opening in full screen mode, there is a workaround trick that will allow many apps to open directly into full screen mode on the Mac.

The best way to make Mac apps default to opening in full screen mode is by changing your app usage behavior a bit, combined with an adjustment to a Mac OS system setting. The end result will be that, at least with many apps that support full screen mode, they will relaunch directly into full screen mode on the Mac. Let’s review how this workaround approach works to achieve the desired effect of launching Mac apps directly into full screen mode.

How to Make Full Screen Mode the Default When Opening Mac Apps

This is a two step process.

First, we’re going to make a settings adjustment in Mac OS system preferences that will allow Mac apps to resume their prior state they were in prior to quit.

  1. Go to the  Apple menu and choose ‘System Preferences’ and then go to ‘General’
  2. Uncheck the box for “Close windows when quitting an app”
  3. Disable Close windows when quitting an in Mac OS to make Mac apps left in full screen mode re open in full screen mode

  4. Close System Preferences

This setting basically makes it so that if you quit an app, windows within that app will not close automatically, and instead they’ll re-open to where you left off. This setting is essential if you want some Mac apps to default to opening into full screen mode.

Second, you’ll need to change app quitting behavior. If you’re accustomed to closing all the windows of an app when or before you quit that app, you will need to stop doing that. Instead, place an app into full screen mode (like Safari for example), and when you’re done using that app, quit it while the active full screen window is still open.

  1. Open an app and place it into Full Screen Mode as usual (for example, Safari)
  2. When finished using that app, leave the full screen mode window active, even if it’s a new blank document or webpage, it must have an active full screen window left open
  3. Quit the app as usual, while that full screen window is active, and do not discard any open windows
  4. Upon relaunching that Mac app, it will open directly into Full Screen Mode by default
  5. Repeat with other apps as necessary

Assuming you followed the steps correctly, and you continue to quit apps while that app is still active with a window in Full Screen Mode, when relaunching the app it will be immediately in full screen mode on the Mac.

Putting it All Together: Relaunching Mac Apps Directly Into Full Screen Mode

For this to work properly, you have to follow the above sequence:

  • You must quit the app while the apps primary window is still in Full Screen Mode
  • AND, you must have disabled the “Close Windows when quitting apps” feature in Mac OS system settings

The system setting change is critical, because it causes Mac apps to basically resume their they left off upon relaunching. This means if you had previously enabled the “Close windows when quitting apps” feature in Mac OS so that app launching behavior is like what it used to be in older versions of Mac OS, then you’ll have to disable it.

Of course you can also just use your Mac apps as you always have, quitting and resuming whether in Full Screen Mode or not, and just get accustomed to making a window full screen on the Mac either with the use of a keyboard shortcut to enter and exit Full Screen Mode in Mac OS, a menu option, or the green button to toggle in and out of full screen mode, but that’s up to you, and obviously it won’t be automatic.

This trick works with all Mac apps that completely support Full Screen Mode in Mac OS, like Safari, Mail, Messages, Terminal, etc, but it may not work as well with some apps that aren’t designed to be used in full screen mode, and it definitely won’t work in any app which doesn’t support the feature to begin with.

So that’s the workaround to attempt to default to open Mac apps into full screen mode. For now that’s the best method to achieve that result, but perhaps a future version of Mac OS system software will offer a universal settings toggle somewhere in system preferences that allows Mac apps to default into full screen mode. There could be other options out there too, so if you know of another method of launching Mac apps directly into full screen mode, share them in the comments below!

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Posted by: Paul Horowitz in Mac OS X, Tips & Tricks

14 Comments

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  1. Marcia Adams says:

    Hi. I am having some issues with my Mail Apps on this laptop computer and on my iPhone 4. I have both Safari browser. Both by Apple. On my iPhone and on my regular email via http://www.aol.com I changed to a new password. On my regular email I am able to receive and send emails from there. On my phone, though, I am able to receive and read emails after I put in a new password, the same one from the browser on my laptop. I have the Mail App on my computer as well but it won’t accept my new password, saying my username and password don’t match,or something like that. On my phone I changed the password, able to receive emails but not send out because of the IMAP/POP issue. I do not understand. I hope you know what I am talking about. I hope there is a expert out there who will explain in details on how to fix it for me. Thank You!

  2. Marcia Adams says:

    Also…another thing I forgot to add…on my Mac, using Safari browser, the Facebook website did not load either…got a blank page on there…I am sure many of you use Facebook and I am sure you have experience with the not loading issues. Do you have a tip/advice/information on what I need to do with any not loading issues??? Please HELP!!! Thanks again! That is why I subscribe to this OSX Daily newsletter for any tips/advice/information, etc…

  3. Kevin Eoa says:

    Thanks for the tip.

  4. Archie Organo says:

    I am not a frequent user of Mac but making the app in full screen more is one of my problems. I was used to with Microsoft Windows so switching to Mac has been quite a challenge. So thanks to your steps, really it helped!

  5. Ian T says:

    Yes, thank you too. I was unaware that this was possible.

  6. Jon says:

    …didn’t work with screen sharing.

  7. no way says:

    Full screen is so 1999. I drop anybody as a friend if they use full screen.

  8. Drago says:

    I had no idea this was a thing in osx. This alone will increase my productivity by a couple minutes a day because I don’t have to waste time opening certain programs in full screen mode.(Such as ones I use for coding website and editing graphics.) One question I pose to the author and/or other commenters is if there is a way to launch a program into half screen mode? Aka 50% of the screen with a vertical break.

    Cheers,
    Drago

  9. Words Matter says:

    Idiotic “solution.” This means that if I close Safari with 20 webpages opened it will relaunch all 20 again, which in now way is the intended behavior desired when simply wanting to open apps full screen.

    • Nope says:

      No that is not what this means. MacOS save states resume what you leave off. You can leave off with 1 tab or 200 tabs, either in full screen. You can close your tabs before you quit Safari and open it again it will be full screen with one blank window open.

  10. Andrew says:

    So what you are essentially saying is that there is NOT a way to make all windows open Full-screen by default. You can only remember to make them full-screen yourself, not close of modify and then switch off anything else might be useful and might also interfere with how windows were previously closed. Hardly a solution or even a workable workaround is it? It would have been easier to say, every time you open a window remember to expand it to full screen.

    • joe says:

      The full screen app is remembered by the app state, thus if you make the app full screen then on relaunching that app it will be full screen again.

      That’s how you make apps open in full screen mode on the Mac, there is no other way. There is no settings option or otherwise to make things always full screen.

  11. Dave says:

    What I was hoping to find here is how to make apps NOT EVER open in full screen mode.

    In particular, if I’m watching netflix, or VLC full screen videos on my second monitor, I DO NOT want mail ruining my movies by splitting my second screen with a split full screen display of my mailbox, shrinking the movie to half size.

    It’s worse than somebody’s phone ringing during a movie.

    how do I STOP THIS BEHAVIOR FOREVER?

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