Rated 4 out of 5 stars

Thanks for this, great development so far.
Currently I have three bugs that I've noticed:

1) Tabs in addon options not showing correctly.
http://dl.dropbox.com/u/37057/tabmix-noia4.jpg <- bad
http://dl.dropbox.com/u/37057/tabmix-noiafox.jpg <- good

2) When you have a multirow view selected for the tab bar it only shows one row of tabs.

3) There is no drop down arrow for multiple back locations.
http://dl.dropbox.com/u/37057/back-noia4.jpg <- bad
http://dl.dropbox.com/u/37057/back-noiafox.jpg <- good

This review is for a previous version of the add-on (1.0.7).  This user has other reviews of this add-on.

Yeah, I now about those.

Noia Fox uses the fixes/changes from Nuvola. Noia 4 has the glitches from Noia extreme when porting to FF4. There are some more of this. I'll will look at this.