Firefox extension that adds a "Close Other Tabs" context menu item in Firefox v78+.
Beginning with v78, Firefox's Close Tabs to the Right and Close Other Tabs menu items have been moved to a submenu within the tab context menus.
Installing this extension will add a Close Other Tabs menu item to the root of your tab context menu, reducing some of the friction when closing tabs in Firefox v78 and beyond.
Once this extension is installed and enabled, a Close Other Tabs menu item will immediately be available when right-clicking on a tab.
This menu item can be triggered using the o access key. This means that the Close Other Tabs menu item can be invoked by right-clicking a tab and pressing the o key on your keyboard, similar to versions of Firefox prior to v78.
Pinned tabs do not get closed when using this menu item.
See these related extensions:
Further development of this extension will be focused on bugfixes and translations. Contributions are welcome!