[October 2022. See Sound Support’s updated post on Find Your Cursor Using Simple Mouse Locator]
If you ever struggle to find your Mac’s cursor then I recommend that you use MouseLocator. This free application puts a halo around the cursor to help your eyes locate it. You can configure how long the halo is displayed. It can be displayed for as little as half of a second, permanently or somewhere in between. You can also control how long the cursor must be idle before the halo will re-appear. Read More from “Do you need help finding your Mac’s cursor?”
