This is the sort of clever UI design that should be in firefox already. Really improves a workflow involving bookmarking.

I used to have the problem that it would place a bookmark in the default folder when using another bookmarking extension (like QuickBookmarkHere), but since this extension can now bookmark to another folder through searching or right-clicking in a folder, it replaced the functionality of two of my other bookmarking extensions, and the problem therefore solved itself.

I read in the reviews that dragging a tab to bookmarks will still save it to the default folder, but I don't use that anyway.

So, in conclusion: great work, thanks a lot!

EDIT: I noticed the addon has been saving my bookmarks to the default folder when I used the "bookmark to" feature. So I now have dozens of bookmarks that were wrongly filed. This isn't such a problem by itself, but it's perhaps more problematic to notice that the addon just can't be completely counted on.