Remove Tabs By Misuta od Misuta

This add-on gives firefox the ability to easily delete tabs.Two approaches are provided for that.
1.Shortcut key
Please press Alt+Q, the tab on the right will close.
Please press Alt+C, the tab on both sides will close.
2.Context menu
Right mouse button click and select [Remove Tabs By Misuta], select [右側のタブを閉じる],the tab on the right will close.
Right mouse button click and select [Remove Tabs By Misuta], select [他のタブをすべて閉じる],the tab on both sides will close.

There are no user settings for this add-on.