www.rainydayz.org

There's no 64-bit download for SeaMonkey on the official Mozilla site. I've built versions for x86_64 on Ubuntu 9.10.
Also available is the OpenPGP extension.

• Download SeaMonkey 2.0.2
• Download EnigMail 1.0.1

It's possible to run SeaMonkey from Ubuntu side-by-side with SeaMonkey2 by following these steps :

# sudo tar xvjf seamonkey-2.0.2.en-US.linux-x86_64.tar.bz2 -C /usr/local/lib
# sudo mv /usr/local/lib/seamonkey /usr/local/lib/seamonkey-2.0.2
# sudo ln -s /usr/local/lib/seamonkey-2.0.2/seamonkey /usr/local/bin/seamonkey2

SeaMonkey 2.0.2 can now be launched using seamonkey2.

SeaMonkey 2.0 can now store extensions in the user profile and it is not required to have root privileges to install extensions. Merely use the Add-In Manager from the Tools menu.