How does Google browser set the right button to close the current tab?

1. First, click the current tab to close with the left mouse button.

2. Right-click the current tab and select the Close option in the menu bar that appears.

3. Next, you can right-click to close the current tab.

4. You can also hold down the Ctrl key and select the current tab.

5. Right-click and Close to close the selected current tab.

6. Go to the chrome App Store, search and install the "Close Tab" plugin.

7. Right-click anywhere on the current webpage and select "Close current tab?" You can close this tab.