Specifically, I want to create bookmark folders in the android, move bookmarks into them, and open a full folder into tabs. I don't want to create them somewhere else and then sync them.
I'm running "the latest" on a nexus 7. (just loaded it yesterday)
There is no way to create bookmark folders on Firefox for Android.
Depending on how much work you want to put into this you could use Firefox Sync to get the files onto your desktop where you can manage the bookmark layout.