"The location of the tab" setting to "Right" and "Background" not working proper. It open tab on the end of last open tab but it should open tan next to the current tab. So if You drag more then one link / text the tab are not opening on the right to the current tab. If You setting to "Left" it is work like it should work. If this option work I'll give 5 stars. I'm using Glitter Drag with Firefox 56 and Waterfox 56.