Thanks! it works!

👍

I created an account specifically to give you five stars. Thanks a bunch!

I think the person who designed the pinned tabs to disappear with the closing window order is a complete idiot. this problem has been reported by the community for 5 years and no one has fixed it. This plugin creatively solves this problem, it's so beautiful.

Simply excellent

This has saved my pinned tabs multiple times, as I have a habit of dragging out a tab into it's own window and closing the original.
There are some other addons that claim to offer something similar, but I have found it is still pretty easy to loose the tabs with them