Great extension, have used it since I discovered it some years ago. I love that it is still being worked on and updated!

Using with Firefox Developer edition, the Firefox 57+ version is pretty good. I'm used to having bookmarks open on the left side and tabs on the right, which doesn't look possible anymore, but I can adjust. The one thing that *really needs to be an option or default* is getting rid of the default tab-strip on top like the old extension did. It would be most preferable if it just showed the title of the tab you are on, like the old extension did.

I can't live without this extension, so I'm putting up with having a tab bar on top AND a tab bar on the side, but that is definitely sub-optimal. I see there's a way to disable the tab bar on top with a "chrome/userChrome.css" in the Firefox profile folder, but I'm on the fence about showing nothing up there (most prefer title of page).

This is a new version so some bugs are expected, hoping for the best, and thanks to Piro for this great tab organizer.