Close Right Tabs.
Add "Close Right" Button into toolbar.
The tabs to the right of the current tab will be closed.
Close Left:
https://chrome.google.com/webstore/detail/close-left/gdpopcppmglkiodhjobnjbogcoacgkoa
Close Others:
https://chrome.google.com/webstore/detail/close-others/jlkpafdhmdhiahnmcmjejmlidghcobeb
