Rated 5 out of 5 stars

@latif - Thank you for your replay on my previous post and advices. The quick fix of the drag&drop problem with dropping new items to favourite group is the thing i asked abotu:). Your addon on is piece of grat job, and I couldn't probably work on firefox without it. Thank you very much for it!
Greatings from Poland:)

This review is for a previous version of the add-on (  This user has a previous review of this add-on.