Hi, it might be referring to the current opened tabs that you have, can you see other tabs that are open, try closing these (there should be a small x somewhere on the top of the tab)
Welcome to Android Central! Most browsers have a tab management button, usually next to the URL bar. It may look like a rectangle with a number in it. Tap it, and you should see all open tabs appear in a grid or stack format. Close tabs by swiping them away or tapping the X in the corner, as suggested by the tall guy.