Thank you for review. That exact feature was available prior to the WebExtensions version. As much as I wanted to do something about it was simply not possible because Firefox just killed the previous API that I was using to track pinned tabs. But, I think that I might be able to find a hack to do this again (I have several ideas that might work - just figured them right know) and I'll try to make it available into the next update.

Regarding the button. Yes, if the feature is implemented it will be there. The previous version actually had one there but I had to remove it because it was no longer working, but like I said ... I'll solve that with the next update.

Regarding the restore order. I will look into it and make sure they are restored as they should.

Hope that once these feature are implemented you will consider rating it 5 stars.