1/ Recover lost tabs and windows in Safari — Some users have a lot of Safari tabs open all the time. For some folks, open tabs are apparently a way to remember to follow up on things or purchase items. It’s much more sensible to use Bookmarks but hey, we’re all different. But if you close a tab and didn’t mean to, the menu item to recover them is under History at the top of your screen.
Within that menu (above), you will see Recently Closed, which will show you tabs and windows you may have dismissed accidentally. Click any single item to reopen that one page.
2/ Reopen Last Closed [Window/Tab] — This does just what it says, and Reopen All Windows from Last Session, which is handy if Safari didn’t restore your tabs after it was quit for whatever reason. (These options may look a little different or say slightly different things depending on exactly how many tabs you closed, for example, but if you’re looking to get back what you lost, this History menu is very handy.
Of course, if all you want is to undo accidentally closing a tab right after you did it, you’d just press Command-Z like you would anywhere else in any Mac operation to undo your last action. You can also press this key combo multiple times to get back several tabs if you went on a closing frenzy and then came to your senses.
3/ Uploading files from a browser via iCloud — Log into iCloud.com on the computer you’d like to upload files from. Head to Photos if you want to upload images to your iCloud Photo Library or iCloud Drive for all other types of files.
In either place, you’ll see an Upload button at the top of your browser window (indicated above). Choose that, and you’ll get the familiar file-picker dialog box, from which you can navigate to the items you’d like to upload.
How long your upload will take is dependent on the size of the file(s) you select and your internet speed. If you signed in to your iCloud account on a machine that isn’t yours, make sure to log out before you walk away.
The beauty of this trick is most apparent if you’re using iCloud Photo Library or the Mac’s Desktop and Documents syncing feature. In the case of photos, for example, anything you upload to iCloud.com will be immediately distributed to all of your devices if that syncing is turned on.
For iCloud Drive, though, whatever folder you’re looking at online will be where the files you upload end up. So you could navigate to iCloud.com, open iCloud Drive, double-click to view your Desktop folder, and then upload files there. When you get back to your Mac, you’ll see the stuff you uploaded, already on your Desktop and ready to go. [From the Mac Observer.]
4/ Connect to a remote Mac in your Back to My Mac network with macOS Sierra — With macOS Sierra’s Back to My Mac, you can connect to your other Macs securely over the Internet. This is an iCloud feature that lets you set up a network of Macs that you can access remotely. After you set up each Mac or AirPort base station, you can connect to it remotely.
From the Finder menu, choose Preferences, and click the Sidebar tab.
In the Shared section, select Back to My Mac.
Open a Finder window, and look for the Shared section in the sidebar. If you don’t see any shared computers or base stations, place the pointer over the word Shared and click Show.
Select the remote computer or base station that you want to access and click Connect As. (To share a screen with your remote Mac, select the Mac and click Share Screen.) If you don’t see the Mac or base station that you’re looking for, click All to see a list of available Mac computers and base stations.
5/ Remove a Mac from your Back to My Mac network on macOS Sierra — You can turn off Back to My Mac whenever you want (here’s how you set it up). When you do, you’ll remove that Mac or AirPort base station from your Back to My Mac network.
Follow these steps:
Choose System Preferences from the menu, then click iCloud.
In iCloud preferences, deselect Back to My Mac to turn it off. You also can click Sign Out to log out of iCloud completely.
To remove a base station, follow these steps:
From the menu bar, choose Go > Utilities and double-click AirPort Utility.
Select the AirPort base station that you don’t want to use anymore, and click Edit. If you don’t see the base station, click Other Wi-Fi Devices to see a list of available base stations. You might need to choose a different Network Interface from the pop-up menu.
Enter the base station password. This password is different from your iCloud password.
Select the Base Station tab.
In the Back to my Mac section, click the – (minus) button and enter the Apple ID you use with Back to My Mac. The green status indicator should disappear, showing that Back to My Mac is turned off.
Click Update to save your changes.