It works (not the keyboard shortcut though)! Don't forget to allow use in Private Mode. It won't work otherwise.

Usefull but I'd like to have an option to "Open in Private Mode" in the tab-contex-menu too, to open also non-active tabs

The toolbar works but the context-menu does not work. Firefox Version 118.0.2.

It works (after enabling in private mode) and is super convenient. Would be great if it also worked from the new tab home, to simply open an empty private window

Excellent plugin on desktop, could have gotten 5 stars if it would work on Android.
Also it doesn't work when already in a private window, as stated in another review, so you should disable it there.