found this gem today for Firefox:
user_pref("browser.bookmarks.file", "C:\\Path To Netscape Profile\\bookmarks.html");
Which means we can move everyone’s Firefox bookmarks to their home directories on the server and the Firefox bookmarks will follow people from computer to computer like the Internet Explorer Favorites.

I do wish that Mozilla would start using the registry to hold all the various preferences on windows. I know the registry is a mess, but it has a nice API to work with it.

It would also be nice if Firefox had an option to use the same Favorites folder that IE uses (defined in “User Shell Folders” in the registry). That way if a user switches back and forth between browsers their bookmarks follow without any effort at all.