Rated 4 out of 5 stars

When Dragging an item from bookmarks (from menu or sidebar), Super Drag&Go open a new background tab, while QuickDrag open it on current tab.
Don't know if this feature keep QuickDrag simple. But in my opinion, a bookmark should be treated as a link.

This review is for a previous version of the add-on (1.0.5). 

This behavior here is deliberate, because I only wanted QD to handle drags within the content area and to not override the browser's default behavior. I may consider adding an option to change this in a future version, though. Middle-clicking on a bookmark will open it in a new tab.