Handling multiple tabs on Firefox isn’t easy, that’s  why most users always close unnecessary tabs to save precious system resources and clutter on tab bar, by default in Chrome when you right click on a tab  “close tabs to the right” command is shown as one of the option which is very useful to close tabs opened on right, but Firefox lacks this feature. There are many tab-handling extensions available in AMO but I am specifically looking to get Chrome’s Close tabs to right feature in Firefox, and yes Close Tabs to the Right extension for Firefox adds this menu item to Firefox tab context menu.

close tabs to the right option on tab context menu

This extension works with Firefox 4.0 -16.0.

Link

Don’t you think this feature should be default in Firefox much like in Chrome? what do you say?