Rename tab option provides an ability to give a user-friendly name of the selected tab. By default, tab names are given names of Gmail filters or labels, such as “label:inbox or is:starred”, “label:support and is:unread”, and so on. If you have complex Gmail filters, finding specific tabs can get tricky. However, you can assign a name to each tab so you can easily find the tab you want. It’s quite simple, and we’ll show you how.