Firefox extension that adds a "Close Tabs to the Left" context menu item in Firefox v78+.
Installing this extension will add a Close Tabs to the Left 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 Tabs to the Left menu item will immediately be available when right-clicking on a tab.
This menu item can be triggered using the l access key. This means that the Close Tabs to the Left menu item can be invoked by right-clicking a tab and pressing the l key on your keyboard.
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!