Set up and use iCloud Tabs

• Update your iPhone, iPad, or iPod touch to iOS 11 or later.
• Update your Mac to macOS Sierra or later, with Safari 11 or later.
• Sign in to iCloud with the same Apple ID on all of your devices.

On your iPhone, iPad, or iPod touch:

1. Go to Settings > [your name] > iCloud.
2. Make sure that Safari is on.
3. Complete these steps on all of the devices where you want to share tabs.

On your Mac:

1. From the Apple menu, choose System Preferences, then click iCloud.
2. Click to turn on Safari.
3. Complete these steps on all of the devices where you want to share tabs.

On your iPhone, iPad, or iPod touch:

1. Open Safari.
2. Tap the Tabs icon.
3. Scroll to the bottom of the list, below the images of tabs open on your device. A list of open tabs on your other supported devices appear.
4. Tap the one you want to open.

On your Mac:

1. In the Safari toolbar, click the Tabs  button. A list of open tabs from your other supported devices appears at the bottom of the Safari window.
2. Click the tab you want to open.

iCloud Tabs shows only the tabs that are open on your other supported devices, not the tabs that are open on the device you're currently using.

To remove a tab from the iCloud Tabs list, close that tab in Safari on the device that shared the tab, or from the Tabs window.

To remove a tab that's open on a different device than the one you're using, click X next to the tab listing. In macOS High Sierra, go to Safari > View > Show All Tabs. You'll see tables that represent your other devices or computers that are syncing Tabs. Hover the pointer over the Tab name and an X appears. You can click X to remove the tab on the remote device. 

Quitting Safari, putting your device to sleep, or turning off your device doesn't remove a tab from the list.

• iCloud bookmarks keep your Safari bookmarks the same across all of your Macs and iOS devices.
• In OS X Yosemite or later, you can also use Handoff to move Safari pages between your Mac and your iOS devices.