With each macOS update, Apple continuously improves Safari. For example, you can now easily search and preview tabs visually without having to open them individually.
It's quite common to have seemingly hundreds of tabs open and rather than individually going through each tab, this new enhanced search option makes it easy to preview and close your tabs.
How to preview tabs
Open Safari
In the upper righthand corner click the icon that looks like four small squares to preview all of your tabs
To close the tab tool, simply click the icon again
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