[CentOS] Firefox10-stuck with sync

Dear All,

Since RHEL/Centos went to Firefox10, I have about 50 users who have sync-pop-ups.

Does anyone knows a quick and very dirty way to get rid of sync all together?

I searched the Mozilla Forum, but found no clean Linux-solution, without me having to log in to every account and run about:config. I was thinking like adding something to prefs.js

I cannot believe Firefox included this kind of feature without a very big OFF-button. The world is twisted.

Is nobody thinking of sysadmins these days? ( not that I consider myself a true sysadmin )

Thanks very much for any advise.

greetings, J.