[Companion] MOOX automatically expands bookmark folders

[Brian]

Jim Reisert AD1C wrote:

>I am giving the MOOX (M3-compiled) flavor of Firefox a try:
>
>  http://www.moox.ws/tech/mozilla/
>
>Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.7.3) Gecko/20040924
>Firefox/0.10 (MOOX M3).  Running on a P4 using Windows 2K.
>
>I noticed immediately that my Yahoo! bookmark folders automatically expand.  I
>don't have to scroll right for them to open.  I have not yet decided whether I
>like this or not.
>  
>

I am confused.  On a release version of Firefox, the bookmark folders in 
the toolar expand when the cursor is on them, with no scrolling 
required.  What am I missing?