Works

It doesn't work.
Edit: It does actually work. You have make it be able to run in private windows.

Despite some users saying it doesn´t work, it works! (using Firefox 77)
It won't work unless you tell Firefox to allow it to run in Private Windows. Otherwise it can't open pages in Private Windows.
You need to allow it to run in Private Windows from the options of this extension.

used to work until it did not. I had to allow it to work in private mode it works again.. IMPORTANT: allow this addon to work in private mode

doesnt work in FF 71.0b4 (64-bit) beta

AN EXPERIENCE BEYOND DESCRIPTION...

it works.

Satisfaction Beyond Description...