"Close multiple tabs": ONLY right tabs is useful (for me). How can I adapt the menu?

FF used to have a "Close right tabs" menu point. EXCELLENT. Fast. Useful. Since some time, '''feature creep''' has expanded that into "Close several tabs" and the sub-menu close right tabs close left tabs close all tabs Minor point: I use close right all the time, never though close left or close all ("Close all" would be "move to start", then "close right", anyway) So, I go one level further down for nothing added. Major point: Inadvertently closing to the left or closing all destroys a lot of tabs I do not want to go. This new "feature" is annoying and harmful. At the very least, developers should ask users whether they actually want that stuff. ''Before'' spending/wasting time on it. Now, "close left" and "close all" being unfortunately present: Is there a way to remove the two dangerous options and stay - as before - with just "Close right tabs"?