Today and sleeping tabs

Today holds the tabs you open in a Space that aren't pinned. Tabs you haven't looked at for a while go to sleep, so a long list of tabs doesn't slow your Mac down.

Today

In the sidebar, each Space lists its Desks first, then Pinned, then Today. Every tab you open with ⌘T, or from a link, lands in Today, just below the tab you were on.

• Keep a tab by pinning it with ⌘D. It moves up into Pinned. See Pinned tabs and folders.
• Unpin a tab by dragging it onto the Today heading. It stays open.
• Reorder tabs by dragging them up or down the list.
• Close a tab with ⌘W. A tab from Today closes for good, and ⇧⌘T brings it back. See Reopen closed tabs.

The tabs of the Desk you have open are listed once, under Desks, rather than again in Today.

Sleeping tabs

A tab you haven't looked at for an hour goes to sleep. Its page is put away to free memory, and the tab keeps its place in the sidebar and its address. A sleeping tab looks dimmed in the list.

Click a sleeping tab to wake it. The page loads again, as it would if you opened the address yourself.

Some tabs stay awake however long they go unseen:

• Tabs on screen: the tab you're on and every pane of its split view.
• Tabs using media: playing sound or video, or using the camera or microphone.
• Tabs the agent is using: every tab in a Space whose agent is working.

Closed pinned tabs sleep too

When you close a pinned tab, it doesn't disappear. It goes to sleep in its place in Pinned and wakes when you click it. Links you pin with Pin Link to Space, and bookmarks you bring over from another browser, also start asleep and load only when you open them.

Change when tabs sleep

1. Open Settings.Choose Tern › Settings, and go to General.
2. Find Put unused tabs to sleep.It's under Browsing.
3. Choose a time.Pick After 15 minutes, After 30 minutes, After 1 hour, After 2 hours, or Never. After 1 hour is the default.

With Never, tabs stay loaded until you close them. Closed pinned tabs still sleep in their place.