By default, the Bookmark and Reading List icons appear at the top of the Safari sidebar, giving you one-click access to a selection of useful links. Before you can access the Shared Links sidebar, however, you must configure it in System Preferences.

For the Safari sidebar to work with your Twitter feeds, you must add your Twitter account to the Internet Accounts list. To set up the Shared Links sidebar, complete the following steps:

Open System Preferences by selecting the System Preferences icon in the Dock or selecting System Preferences from the Apple menu. In System Preferences, select Internet Accounts. The Internet Accounts preferences window lists the internet accounts you’ve already set up on your Mac (such as your iCloud account) on the left. On the right, it lists the internet account types that the operating system supports, such as Microsoft Exchange and LinkedIn. Apple updates the internet account type list with each macOS update. So, what you see may change over time. From the list on the right, select Twitter. In the window that appears, type your Twitter user name and password, and then select Next. An explanation of what happens when you allow OS X to sign you into your Twitter account appears: You can tweet and post photos and links to Twitter. Links from your Twitter timeline appear in Safari. Apps can work with your Twitter account (with your permission). You can disable Contacts syncing and prevent specific apps on your Mac from accessing your Twitter account. Select Sign In to enable Twitter access from Safari. Your Twitter account is now configured to allow OS X/macOS to use the service. Close System Preferences.

With Twitter set up as an internet account, you can use the Shared Links feature in Safari. To do so, complete the following steps:

The Internet Accounts preferences window lists the internet accounts you’ve already set up on your Mac (such as your iCloud account) on the left. On the right, it lists the internet account types that the operating system supports, such as Microsoft Exchange and LinkedIn.

An explanation of what happens when you allow OS X to sign you into your Twitter account appears:

You can tweet and post photos and links to Twitter. Links from your Twitter timeline appear in Safari. Apps can work with your Twitter account (with your permission).

Your Twitter account is now configured to allow OS X/macOS to use the service.

Open Safari. Select the Show sidebar icon. At the top of the sidebar, three tabs appear: Bookmarks, Reading List, and Shared Links. In the sidebar, select the Shared Links tab (the @ symbol). The Shared Links selection list fills with tweets from your Twitter feed. The first time you open the Shared Links selection list, it can take a moment for Safari to pull and display the tweets. To display the content of a shared link in a tweet, select the tweet in the Shared Links selection list. To retweet a tweet in the Shared Links selection list, Control+select the tweet and then select Retweet. To go to Twitter and view a Twitter user’s public account information, Control+select that user’s tweet, and then select Show on twitter. com.

At the top of the sidebar, three tabs appear: Bookmarks, Reading List, and Shared Links.

The Shared Links selection list fills with tweets from your Twitter feed.