Do you ever start a build or other long-running process in a tab and forget to come back to it, or just keep that tab open until it completes and forgo the opportunity to get more work done? Never forget a tab with this extension!
Just click the extension icon or use the keyboard shortcut (by default Cmd+Shift+U on MacOS and Ctrl+Shift+U elsewhere), enter a number of minutes for the reminder, and press Enter. Then, that many minutes later, you'll get a notification to return to your tab.