Unable to Control Bookmarks Rated 1 out of 5 stars

I really can't review this product fairly.

Briefly, I cannot add a flexible/expandable space such that certain bookmarks go on one row and others go on a 2nd row and so on.

My relevant addons:

1) Multirow Bookmarks Toolbar Plus
2) TabMix Plus
3) TabControl
4) FF20, Win7 64 bit Ultimate

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