OldSchool40
Tue Jul 12, 2016 2:20:01 pm
I'm currently running Zorin 9 core 32 bit at the moment and I prefer to use SeaMonkey rather than firefox (Used it for years on my windows pc and enjoy it's familiarity). Thanks to some help from someone on the Ubuntu Mate forums, https://ubuntu-mate.community/t/seamonkey-browser/2985/3 I found out how to install it on Linux and can testify this method works on Zorin 9 as well (in fact I'm using it right now!) 
These are the four easy steps; go to your terminal and issue these commands (just copy/paste)
echo -e "\ndeb http://downloads.sourceforge.net/projec ... ozilla/apt all main" | sudo tee -a /etc/apt/sources.list > /dev/null
(press enter)
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C1289A29
(press enter)
sudo apt-get update
(press enter)
sudo apt-get install seamonkey-mozilla-build
(press enter)
Enjoy!
The first two of the four commands, which you issued, allow your computer to receive SeaMonkey and/or Mozilla updates; so you will get all the new versions as they are released - just look for them to be in your Update Mgr.
Also, go to your Update Mgr (the big 'A' icon). After running an update check, press 'Preferences' > 'Other Software' and make sure that 'http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main' is listed. Then go to the 'Authentication' tab there and verify that one of the entries says 'Daniel Folkenshteyn' (Ubuntuzilla signing key)... Make sure that you only have one of both of these entries (don't want duplicates). If there are two, see that they are exactly identical; and remove any duplicate of these two (just the one though)
These are the four easy steps; go to your terminal and issue these commands (just copy/paste)
echo -e "\ndeb http://downloads.sourceforge.net/projec ... ozilla/apt all main" | sudo tee -a /etc/apt/sources.list > /dev/null
(press enter)
sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com C1289A29
(press enter)
sudo apt-get update
(press enter)
sudo apt-get install seamonkey-mozilla-build
(press enter)
Enjoy!
The first two of the four commands, which you issued, allow your computer to receive SeaMonkey and/or Mozilla updates; so you will get all the new versions as they are released - just look for them to be in your Update Mgr.
Also, go to your Update Mgr (the big 'A' icon). After running an update check, press 'Preferences' > 'Other Software' and make sure that 'http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main' is listed. Then go to the 'Authentication' tab there and verify that one of the entries says 'Daniel Folkenshteyn' (Ubuntuzilla signing key)... Make sure that you only have one of both of these entries (don't want duplicates). If there are two, see that they are exactly identical; and remove any duplicate of these two (just the one though)