I'm so used to context menu > "Open Link in Private Window" and dragging tabs between normal and private windows that I forgot I installed this years ago. It wasn't working (probably because I didn't follow the instructions to 'click on "Allow" next to "Run in Private Windows"'), but when I reinstalled it works well. I open most links in a private window, so its inverse operation "Reopen the current tab into a normal window" is very useful when I want to go from reading a web page to interacting with the site.

No longer working for me following latest extension (4.2.3) and FF update (137.0.1). Click the button, does nothing.

As of version 2.2.7, this works perfectly in Windows. Note that it requires you to allow it to run in private windows. When I first tried it, I didn't have that enabled. So instead of opening a private window, it opened its Settings page to let me set the permission.

useful！