This could be due to browser updates ... Chrome allows you to save tab groups, which appear as icons in the bookmarks bar. You can restore them later with just a click.
Clicking on this icon, it will turn on the Vertical tabs feature on your browser. Similar to the tab row layout, you can use the Ctrl+T keyboard shortcut to add a new tab in your browser.
To close all your tabs in Safari, open up the browser; on the bottom bar in the right corner, you should see an icon that looks like two squares. That's the Tabs icon to let you easily switch between ...
Most browsers display a speaker icon on any tab that's making sound. Despite being the most popular internet browser around, Google Chrome doesn't have a built-in way to mute tabs like other browsers.