Need to save a webpage as a PDF file on a Mac? Safari on the Mac makes saving webpages as a PDF very easy. Exporting a webpage in PDF format is useful for many purposes, whether you want to access an offline version of a webpage or article, to transmit information on a webpage as PDF format like a health record, call record, bill, or statement, for records keeping purposes, to send to someone else or a print shop, and so much more.
This tutorial will show you how to easily save a webpage as a PDF file using the Safari web browser on a Mac.
Note if you’re using an iPhone or iPad, you can save webpages as PDF on iPhone or iPad with these instructionsinstead.
How to Save Webpages as PDF on Mac with Safari
Open Safari on the Mac, then navigate to the webpage you want to save as a PDF file
Pull down the “File” menu in Safari
Choose “Export as PDF” from the File menu
Set the file name and choose a file destination and choose “Save” to save the webpage as a PDF
The PDF file of the saved webpage will be wherever you saved the file to, whether that was your user Documents folder, the Desktop, Downloads folder, or elsewhere.
The resulting webpage PDF can be used just like any other PDF file, you can email it, share it, upload it, or whatever else just like any other PDF document.
If for some reason this doesn’t work for you, or if you’re using a different web browser on a Mac that doesn’t support the direct ‘Export as PDF’ option, you can still easily save a webpage as a PDF by simply using Print to PDF on the Mac, which is available on every Mac OS release. If you find yourself using that feature often enough you can even set a “Save as PDF” keyboard shortcut for use on the Mac to be able to quickly perform that function.
Obviously this covers saving a webpage as a PDF file on Mac OS with Safari, but iPhone and iPad can save webpages as PDF too using an equally simple and direct feature.
Safari on the Mac can resume stopped downloads and restart failed downloads rather easily. For example, if you were downloading Xcode from Apple but your internet connection was interrupted and the download stopped, you can resume the download where it left off rather than restart the entire download over again. This is a great way to restart and resume incomplete downloads, regardless of the reason the file download failed, was interrupted or otherwise halted, and it’s available in the Safari download manager on Mac OS.
How to Resume Incomplete Downloads in Safari on Mac
From Safari on the Mac, click the Downloads button in the Safari toolbar, it looks like an arrow pointing downwards
Locate the stopped, stalled, or failed download, then click the orange circular arrow button to attempt to restart the download
The file should resume downloading where it was otherwise interrupted
Once the file, archive, image, or whatever else has completed downloading, it will appear in the Downloads folder on the Mac.
Note that Safari defaults to downloading things into the user Downloads folder, but you change the Safari download location on Mac if desired. Thus if you had previously changed the download location, you’d need to find the item there instead.
If you do need to start the download over from scratch, often an easy way to do that is to copy the downloaded files original direct download URL from Safari and simply paste that address back into the URL bar. Note that approach doesn’t always work with randomly generated CDN address downloads however. Similarly, you can find out where a file was downloaded from on the Mac by using Get Info in the Finder on the file, even if the file is only partially downloaded and incomplete.
Some other web browsers also support file download resuming as well, including Chrome, though how you go about resuming downloads in Chrome is different than what is discussed here in Safari.
You may have noticed that sometimes you can not power on and boot a MacBook Pro when it doesn’t have a battery installed. Let’s say you had to remove the battery of an older MacBook Pro because it was swelling, or the battery failed for some other reason, but when you go to power on the MacBook Pro, nothing happens. (To be clear, this article is aimed at older MacBook Pro model years, like a 2006, 2007, 2008, 2009, 2010, 2011, back when replacing a battery, hard disk, RAM, was all fairly easy to do by opening the bottom case).
In this situation, if a battery is removed or totally dead and you attempt to start the MacBook Pro, nothing happens – there is no sound, no system boot, no startup chime, nothing. It turns out that some model year MacBook Pro computers will not boot with a simple power button press after the battery has been physically removed or disconnected.
Of course if you happen to have a replacement battery then you can typically just replace the missing battery with a working battery and the MacBook Pro will boot, but that is not always an option. So let’s discuss how to boot an older MacBook Pro when there is no battery present at all.
How to Boot MacBook Pro with No Battery Installed
We are assuming the MacBook Pro has no battery installed in the computer, meaning there physically is no battery installed. Then, when attempting to boot the Mac or pressing the start button, nothing happens. In this case, you can force the MacBook Pro to boot by following these steps:
Unplug the MagSafe power cable
Hold down the Power button for 10 seconds and continue to hold it down
While still holding the Power button, connect the MagSafe power cable to the MacBook Pro and continue to hold the Power button for another 10 seconds
Release the Power button, then press the Power button as usual to power on the computer and boot the Mac
When the MacBook Pro does boot, the fans will be blasting at full speed for the entire time you are using the Mac (resetting SMC or PRAM does not stop the fans running, only replacing the battery will).
Also it appears that the MacBook Pro will reduce its own clock speed in this situation, thereby reducing performance.
The only way to stop the fans from running at full speed and to return the clock speed to regular performance is to install a new battery into the MacBook Pro.
As some experienced this scenario on an old MacBook Pro 2010 model after removing a swollen battery. Once the battery was removed you can press the power button but nothing happens. However, the above method of disconnecting and reconnecting MagSafe while holding the Power button was successful in starting up the Mac – with fans running at full speed and at reduced clock speed however. Nonetheless, Snow Leopard still runs well!
As you can see in the screenshot below, the “No Battery” indicator is visible, but the MacBook Pro is booted and working.
And indeed, this particular MacBook Pro has no physical battery installed as you can see the internals in this picture:
Powering Up a MacBook Pro After Replacing Battery, Logic Board, Hard Drive, RAM, etc too
Apparently the same aforementioned scenario of the MacBook / MacBook Pro not starting up can also unfold when replacing other internal components on these older model year MacBook Pro (2006, 2007, 2008, 2009, 2010, 2011, etc), including replaced logic boards, internal hard drives, RAM, battery, and perhaps other hardware components too.
With some other internal component replacements, sometimes simply plugging in the MagSafe adapter and holding the power button for 10 seconds is enough to cause the MacBook Pro to start.
Also, Check the Power Adapter Wattage
For what it’s worth, in some scenarios where the battery appears dead but is not actually (ie, the charge is long drained but the battery itself isn’t completely useless yet), then you may be able to successfully boot the MacBook Pro with a proper wattage MagSafe power adapter of 85W. These older model year MacBook Pro computers use 85W power adapters, whereas the MacBook and MacBook Air of the same generation used 60W power adapters. Sometimes simply plugging in the proper higher wattage power adapter will allow the MacBook Pro to boot.
This MagSafe power button pressing solution was found on iFixIt forums and it worked for me, so if you’re in a similar scenario with an older MacBook Pro then try it out yourself. If for some reason the above method does not work, the original forum poster does state the following possible workaround involving moving a RAM module to a different slot (if applicable):
“If that doesn’t work then try to remove one RAM memory [module] and switch places and [repeat] the method”
In my case this juggling of the RAM module was not necessary to boot the MacBook Pro (a 2010 model year) without a battery, but that additional tidbit may be valid to you.
This article is obviously aimed at older MacBook Pro hardware, but it may be relevant to other older MacBook models too, including similar model year (2006, 2007, 2008, 2009, 2010, 2011) MacBook and MacBook Air, and perhaps even some newer MacBook Pro models too. By the way, if you’re rocking an older Mac and want to speed it up, check out these tips.
Of course newer model year MacBook (Pro & Air too) hardware does not have user serviceable batteries and in some cases the battery is glued to the top case, so in those situations the ability to end up in a situation where the computer doesn’t have a battery is much less likely, and any troubleshooting scenario is going to be much more extreme requiring a more thorough hardware repair that is far beyond the scope of this particular article. In those situations, take the Mac to a certified Apple Repair Specialist or an Apple Store instead.
Long live the old Macs! Does this qualify for retro status yet? Probably not… give it a bit longer.
Want to toggle Do Not Disturb mode on the Mac with a keyboard shortcut? You can easily enable a custom keyboard shortcut to turn on or off Do Not Disturb mode in MacOS, and we’ll show you how to set it up.
Do Not Disturb mode on the Mac is one of the best features you can use if you want to focus on a task, and not be distracted by the myriad endless notifications and alerts that pop up on the Mac. Enabling and disabling the feature with a keyboard shortcut offers a quick way to toggle the feature off or on as quick as possible and at any time.
How to Set a Do Not Disturb Keyboard Shortcut on Mac
To be able to toggle Do Not Disturb off or on by keyboard shortcut on Mac, you’ll need to enable a keyboard shortcut for it first. Here’s how to do that:
Go to the Apple menu and select “System Preferences”
Go to “Keyboard” and then choose the “Shortcuts” tab
Select “Mission Control” from the Shortcuts options
Locate “Turn Do Not Disturb On/Off” and make sure that is checked to be enabled
Click directly to the right of “Turn Do Not Disturb On/Off” and then press a keyboard shortcut combination to set as the Do Not Disturb keyboard shortcut
In the example here, the keystroke combination SHIFT FN F10 was set as the keyboard shortcut for enabling and disabling Do Not Disturb mode.
You can set any keyboard shortcut you want for this purpose, just make sure it’s unique and does not overlap with another keystroke combination or feature. Applying modifier keys like Shift, Option, Control, FN can be an easy way to avoid conflict with other keyboard shortcuts on the Mac. Whether FN SHIFT F10 works for your particular situation is going to depend on your individual Mac setup.
How to Toggle Do Not Disturb ON or OFF by Keyboard Shortcut on Mac
Once the keyboard shortcut for toggling Do Not Disturb mode is enabled, you can use it at anytime by pressing the keystroke combination you set in the above steps. In the example here, that would be pressing SHIFT FN F10, so therefore toggling the feature would be as so:
Press SHIFT FN F10 to enable Do Not Disturb mode instantly
Press SHIFT FN F10 to disable Do Not Disturb mode immediately
When Do Not Disturb mode is on, all notifications and alerts will not show up on the Mac, but they will still be contained within the Notification Center.
When Do not Disturb mode is off, all alerts and notifications will come through to the Mac as usual, showing up as pop-up alerts in the upper right corner of the screen.
Do Not Disturb mode is one of the most useful features available on the Mac and on the iOS side of things too, where using Do Not Disturb mode on iPhone and iPad can offer some peace and quiet when you’re on the go as well.
If you find yourself toggling this feature on frequently, you might want to set a schedule for Do Not Disturb on Mac to be automatically on at times of your choosing. And if you don’t like the annoying notifications at all then you can precent all notifications on the Mac by setting Do Not Disturb mode in perpetuity to be always enabled using a scheduling trick, which will make it so your Mac is never harangued by the alerts and notifications from everything under the sun.
If you’re a Mac user who relies on iCloud Drive for data syncing and cloud storage, you might appreciate knowing that you can enable an optional iCloud Status indicator in the Mac Finder.
The iCloud Status indicators in Finder can tell you if a file or folder is only in iCloud, on the local Mac, ineligible for iCloud, waiting to upload, transferring, and more. Note these iCloud Status indicators are different from progress indicators, though you can also check the progress of iCloud file uploads and downloads in Mac OS if desired.
How to Enable iCloud Status Indicator for Mac iCloud Folders
Go to the Mac Finder
Navigate to an iCloud Drive folder, or if you use iCloud Desktop and iCloud Documents to there *
Switch the folder to List View (click the List view button, or go to View menu > As List)
Pull down the “View” menu and choose “View Options”
Check the box for “iCloud Status” to enable the iCloud Status indicator for the iCloud Drive folder
Close out of View Options
Once the iCloud Status view option has been enabled, it will be visible as a column in List view. Like other sort columns, you can move it around as desired.
You can also right click on the file list headers and choose to toggle “iCloud Status” from there, which is quicker than going to View Options preference panel.
Note if you disabled iCloud Desktop and Documents folders on MacOS so that your desktop and documents aren’t uploading into iCloud, then this iCloud status indicator feature won’t be available for those directories, and instead will be limited to iCloud Drive. This is signified by the iCloud Status option being grayed out and unselectable.
With the iCloud Status indicators enabled, anytime you are copying files to iCloud Drive from Mac or moving files to iCloud from Mac OS you will see the indicator change for those files. Likewise if there is other activity within the iCloud folders, that will show with the iCloud status indicator as well.
If you frequently put data into iCloud Drive or an iCloud enabled Documents or Desktop folder, you might want to think about adding iCloud Drive to the Mac Dock for quick access. It can also be helpful to watch upload progress of files and folders that are transferring to iCloud from the Mac.
Want to change the tracking speed of the cursor on a Mac? Maybe you want your mouse to move around on the screen faster? Perhaps you want the Mac trackpad to move the cursor slower?
You can manually change the tracking speed of either a mouse or trackpad connected to a Mac, and you can even have different tracking speeds for a mouse as you do for a trackpad, a handy trick for users who have both input methods in use on their Mac.
How to Change Tracking Speed of Mouse / Trackpad Cursor on Mac
Go to the Apple menu in the upper left corner of the display
Choose “System Preferences”
Select “Trackpad” or “Mouse”, depending on which you have or want to adjust the cursor tracking speed for
For changing Trackpad tracking speed: Under the “Point & Click” section, look for “Tracking speed” and adjust the slider on the scale from “Slow” to “Fast” as preferred, the tracking speed changes immediately so you can test the change right away
For changing Mouse tracking speed: Adjust the “Tracking speed” slider on the scale from “Slow” to “Fast” as desired
Close out of System Preferences when finished
What tracking speed you use is almost entirely a matter of personal preference. Some users really like a fast tracking speed, while others prefer a slow speed. You should try out different settings and see which works best for you. Often you’ll find somewhere in the middle of the tracking speed slider options offers a good compromise.
Remember you can change the tracking speed of the cursor for input devices independently from one another. For example, you could have the internal trackpad of a MacBook Pro set to fast tracking speed, but any connected mouse could have a slow tracking speed, or vice versa. To independently change the cursor speeds of different input devices, just connect each input device to the Mac and then go to the “Mouse” settings and then the “Trackpad” settings and adjust each as needed. (Side note; you can also independently control mouse and trackpad acceleration speeds with a third party tool, but that’s a different topic)
Note a separate preference setting exists so that you can also change the scrolling speed of a mouse or trackpad on the Mac, which applies to either gestures for scrolling or to scroll wheels.
Some related helpful tips may be changing the size of the Mac cursor, and if you notice the cursor randomly getting big when you move the mouse or trackpad suddenly and you don’t like that, then you might want to disable Shake To Find on the Mac.
Need to delete a virtual machine from Parallels or Parallels Desktop Lite? Removing a virtual machine can be necessary when you’re finished using a particular environment, operating system, or VM for any reason, and it’s also common to remove unneeded virtual machines to free up disk space.
Here’s how you can easily delete a virtual machine in Parallels and remove it from the Mac (or Windows PC).
How to Remove Virtual Machines in Parallels & Parallels Desktop Lite
Launch Parallels or Parallels Desktop Lite, but do not start any virtual machine
Select the virtual machine you want to delete from the Control Center (if Parallels launches immediately into a VM, exit the VM and go to the main screen first)
Go to the “File” menu and choose “Remove”, or alternatively right-click on the VM and choose “Remove”
Select “Move to Trash” to delete the virtual machine without saving anything, or choose “Keep Files” to be able to use the VM again in the future if needed
Repeat with other virtual machines you want to delete
Now go to the Finder and empty the Trash as usual (or right-click the Trash icon in the Mac Dock and choose “Empty Trash”)
Emptying the Trash is necessary to actually delete the virtual machine from the Mac and free up disk space on the computer.
It doesn’t matter if you use the File menu or the right-click menu to delete the virtual machine, the steps are the same afterwards.
Note: if you’re deleting a virtual machine from Parallels on Windows, you empty the Recycle Bin instead of the Trash like on the Mac.
Note that if you simply move the virtual machine to the Trash but don’t empty the Trash on the Mac, that VM can be recovered anytime before the Trash is emptied by simply going to the Trash, locating the vm file (usually labeled as the OS with the file extension “.pvm” like ‘Debian Linux.pvm’) and adding that VM file back into Parallels.
Virtual machines offer a powerful way to test out and use other operating systems by running them in an application layer atop an existing operating system, and this capability is not limited to Parallels or Parallels Desktop Lite. You can use virtual machine software like VirtualBox or VMWare for running Windows 10, Windows 8, Windows 7, Windows 2000, NT, 98, 95, 3.11, Windows with older versions of Internet Explorer ranging from IE 7 to IE 9, Ubuntu Linux, ParrotSec Linux, or just about any other Linux distribution, BSD, a variety of versions of Mac OS and Mac OS X including MacOS Mojave and macOS Sierra, BeOS / HaikuOS, and many other operating systems too. And of course you can delete virtual machines from VirtualBox and VMWare too if needed.
If you’re using a Mac with Hey Siri voice activation enabled but you’d like to turn the voice listening feature off, you’ll find that it’s easy to selectively turn off Hey Siri while still leaving the usual Siri invocation methods enabled in MacOS.
How to Disable “Hey Siri” on Mac
Go to the Apple menu and choose “System Preferences”
Select the “Siri” preference panel
Uncheck the box next to “Listen for Hey Siri” to turn off Hey Siri on Mac
Close System Preferences
Remember this is only turning off the “Hey Siri” voice activation method which is actively listening for the ‘Hey Siri’ voice command, it does not Disable Siri on the Mac completely.
Now you can say “Hey Siri” all you want near the Mac and it won’t activate the voice assistant. But you can continue to access Siri through keyboard shortcut, the menu bar item, Dock icon, Touch Bar, or any other Siri access method on the Mac. Another advantage to this is that you can use Type to Siri on the Mac for typing Siri commands and requests.
This is aimed for the official Mac Hey Siri method, which is limited generally to newer machines, but if you’re on an older Mac model which is using the alternative method for allowing Hey Siri in MacOS then you would have to turn off those specific settings instead.
As with all settings, you can reverse this at any time by choosing to enable Hey Siri again through the same preference panel in MacOS. If you do disable Hey Siri then turn it back on again later, you’ll have to go through the voice recognition setup process again, which is fairly quick and requires you to speak a few phrases to the computer.
Obviously this is aimed at Hey Siri for Mac, but anyone can turn off Hey Siri on iPhone or iPad too if they don’t want the voice activation feature on their iOS device either.
Mac users who have switched from the Windows platform may be accustomed to hitting the F5 function key to refresh a web browser, web site, or webpage. The F5 key is used as refresh or reload in most Windows web browsers, so when Windows users switch to Mac they might be wondering what the equivalent refresh button is on the Mac, since hitting F5 on the Mac either usually adjusts keyboard backlighting or does nothing at all.
We’ll cover the F5 key equivalent on the Mac for most web browsers that you’ll encounter, so if you’re a recent Windows switcher you should find this guide particularly helpful.
Command + R is the Refresh Keyboard Shortcut on Mac Web Browsers, Usually
The keystroke for reloading or refreshing a webpage on most web browsers for the Mac is Command + R, and that applies to the majority of Mac web browsers, including Safari, Chrome, Firefox, Opera, Epic, Brave, and others.
We’ll dive into specific web browsers next to discuss each individually and also some specific tricks for each to reload without cache, if that’s necessary.
F5 Refresh Equivalent in Safari for Mac
Safari is the default web browser on a Mac, so it’s probably what you’ll be using by default unless you change the default browser, so this is probably the most important to cover first. To refresh or reload a webpage in the Safari web browser on a Mac, you press a simple keyboard shortcut combination:
Command + R reloads a webpage in Safari on Mac
Command + R in Safari for Mac reloads a webpage, making it essentially the same thing as hitting F5 on Windows when viewing a webpage.
Using Command+R to refresh in Safari works the same in the standard Safari version that comes preinstalled on all Macs, along with Safari Technology Preview and the developer version too. It’s one simple keyboard shortcut; Command + R is the Safari equivalent to F5 in a Windows browser.
Note that if you want to refresh a webpage in Safari without loading cache, you can use Command+Option+R, or hold down the Shift key and then click the refresh button, or you can empty the Safari cache. Reloading web sites without cache is typically for advanced users and developers only.
F5 Refresh Equivalent in Chrome for Mac
Reloading a webpage in Chrome on the Mac uses the same keyboard shortcut combination as does Safari on the Mac, cmd+r. This includes Chrome, Chrome Canary, and other Chrome dev versions.
Command + R reloads a webpage in Chrome on the Mac
Indeed Chrome on the Mac also uses Command + R to refresh a web page or website, which is the exact same reload keyboard shortcut that Safari uses. This obviously makes it easy to remember, since you only have to remember one keyboard shortcut for reloading.epic
You can also add the Shift key to that same keyboard command to force refresh a webpage without loading cache in Chrome, but that’s typically used by developers and most users won’t need to do that.
A handful of other browsers use Chrome as their basis, including Epic, which has a handy geolocation proxy tool, Brave, and others. All of these Chrome spin-off browsers also use Command + R to refresh the browser.
F5 Equivalent in Firefox for Mac
Are you a Firefox user on the Mac? Great, the Firefox refresh keyboard shortcut is the same as the other browsers yet again!
Command + R will refresh a web site in Firefox in Mac OS
You might be noticing a recurring theme here… much like F5 is the default refresh browser and webpage option on Windows computers, Command+R is the default refresh option on Mac web browsers.
F5 Equivalent in Opera for Mac
If you use Opera (which has an excellent free bundled VPN and is therefore a worthwhile browser to add to some users collections for that reason alone), then you’ll be relieved to know that Opera also uses the same keyboard shortcut as other Mac browsers for refreshing webpages:
Command + R refreshes a webpage in Opera for Mac
As you probably noticed by now, basically regardless of the web browser itself, the Command+R keyboard shortcut for reloading a webpage on the Mac is so ubiquitous and widely adopted that there isn’t a single variation that moves away from that. So much like F5 refreshes web pages on Windows, Command+R refreshes web pages on the Mac, making Command+R the F5 equivalent.
What about refreshing in other apps?
Many other apps have refresh functions as well, but not all of them have keyboard shortcuts associated with their functionality. For example, you can refresh the Mac App Store with Command+R as well, but you if you want to refresh Finder file system you’ll have to try something different as there is no direct refresh option.
This is just one of many useful things to learn and remember for Windows switchers to the Mac platform. Some other helpful tricks can be learning what the HOME and END buttons are, what Page Up and Page Down are, the Print Screen button equivalent, what the ALT key is (if it’s not labeled, depends on the keyboard and region of the Mac), and mimicking the DEL forward delete function. All of these are possible (and so much more) on the Mac, but because most Mac keyboards are a bit more minimalist and simplified, it can require some minimal adjustment to get acquainted with the new keystrokes and keyboard shortcuts to accomplish tasks that may have been routine habit in the Windows PC world.
Have you ever wished your Mac would update MacOS system software on its own? If you’d like to take a hands-off approach to updating your system, you can enable automatic MacOS system software updates. With this feature enabled, not only will your Mac automatically check for new system software updates, but it will download and then automatically install the macOS updates too.
Enabling automatic MacOS software updates is great for convenience, but it’s really only recommended if you also have setup Time Machine for regular Mac backups, which are also automated once that setup has been complete. Without regular backups, there is a chance that an automatic update could go awry and lead to hassle or data loss, thus if you are considering using automatic macOS updates then it is important to use Time Machine for backups too.
How to Enable Automatic MacOS System Software Updating
Want a Mac to automatically update system software itself? Here is how you can enable that:
Go to the Apple menu and choose “System Preferences”
Select the “Software Update” preference panel, then choose either of the following options:
To automatically update both MacOS system software and Mac App Store apps, check the box for “Automatically keep my Mac up to date”
To only auto-update MacOS updates to system software and security updates, click the “Advanced” button then check the boxes for: “Check for updates”, “Download new updates when available”, “Install macOS updates” and “Install system data files and security updates” *
Exit out of System Preferences when finished
Once you have automatic MacOS updates available, the Mac will periodically check for any available system software update, and if one is found it will download and install it automatically. This process tends to happen in the middle of the night if the Mac is left on, otherwise it aims to happen when the computer is not in use.
You can still manually check for MacOS software updates with this setting enabled if desired, though the necessity for doing so is diminished since this sets the process to be automated.
* The option for “Install app updates from the App Store” can be enabled here as well if you want Mac OS to automatically update your Mac App Store applications as well. That setting can also be enabled or adjusted through the Mac App Store settings directly. We’re focusing on enabling automatic system software updates to MacOS here, however.
To be clear, auto system updates is not a new feature, though it is different now in MacOS 10.14 onward compared to prior releases. Much like the process of updating MacOS system software manually is different in macOS Mojave 10.14 onward compared to prior versions of Mac OS X, the setup for enabling automatic MacOS software updates is different now too compared to auto-update in prior Mac OS X versions too. This is largely because system software updates no longer come through the Mac App Store, but instead through the System Preferences again. So if you’re reading this article and wishing you had the feature on your Mac with an earlier MacOS release, you probably do, it’s just in a different settings location.
Obviously a feature like this requires internet access, so if the Mac is not on the internet then automatic updates will not work.
Whether or not you want to use this feature likely depends on how you use a Mac, how often you backup, if you prefer a hands-on approach to maintenance, whether you install updates through System Preferences or by using Combo Updates, and other personal preferences. Like other settings, you can always disable this feature later if you decide to.
