suggestion on change in 0.48 Rated 4 out of 5 stars
Version 0.48 fixed the mentioned "about:config" reset issue. It works as it should. But I think two things are still not perfect as for this issue. First when this add-on resets configs to Firefox default, it doesn't remove those items which don't exist originally, instead the add-on sets values equivalent to the default. Usually this isn't an issue, however as Firefox rapidly changes, those default settings may also be changed by Mozilla silently, that is, different Firefox versions may have different values. Second, if this add-on is disabled or removed without first disabling each preference, those preferences won't go back to their default, which isn't expected. Perhaps add-on cannot control the disable/remove action of FF, however the add-on can expose some hints to users on the interface, e.g. telling users the facts, or placing an information icon next to each preference to explain what will be changed.
By the way, I support those features which may not directly relate to SSL, but are really very useful (I don't prefer another add-on just for those preferences. More add-ons, more slow). The only point is to control their number, not too many like another "about:config", especially to focus on security (privacy) and network (and major optimization as now done).