Guides
Plain guides for your Mac and for Tern: split screen, two accounts at once, running out of memory, your default browser, inspect element and more.
Moving from Arc
Arc stops working on 22 December 2026. Bring your Spaces, pinned tabs and folders to Tern.
Change your default browser
In System Settings or from Tern, and which Space links open in.
Inspect element on a Mac
See the HTML and CSS behind any part of a page, and the page source.
Browse privately on a Mac
Open a private window, and what it keeps off your Mac and what it does not.
Split screen on a Mac
Two windows side by side with tiling or full screen, and up to four pages in one window.
Two accounts at once
Stay signed in to work and personal accounts on the same site at once.
Out of application memory
What the Mac memory warning means, how to fix it now, and how to keep tabs from causing it.