Install Firefox add-ons for all users

[Idontwantspam]

Is there any way to install a Firefox add-on for all users instead of just the one who installs it? I'd like to install Ad-Block Plus and Yahoo Mail Notifier for all of the users on a certain computer, and I don't want to install it for every user individually since that's a waste of disk space to have the same add-on five or so times, and it's a computer with dial-up, so it takes forever to download even the smallest thing. Any way to do this?

[bj-kaiser]

http://www.uawiki.org/doku.php?id=silent_a...tchesdb:firefox

But remember that only Admins can update global extensions.