Rated 5 out of 5 stars

It's awesome. The only thing is, it breaks toolbar in current Minefield nightlies (3.7a), becoming useless for me for now. Please look into it, it would be great to have it working in Minefield too. Thanks :)

This review is for a previous version of the add-on (4.0.0). 

I tried it also on Minefield and I got no problem with my toolbar.
Could you create a new issue to discuss about it at http://code.google.com/p/scrollupfolder/issues/entry ?
I'm curious to find the problem.
Thanks ;)

I found the bug and it was fixed in version 4.1.3.