How To Install Seamonkey Web Browser on Debian Ubuntu Linux Mint

It's a little tricky if you are running a 64-bit OS which most people will be.

The weird thing is that the Seamonkey website for Linux seems to only provide a 32-bit download.

seamonkey-2.49.2.tar.bz2

First unpack it

tar -jxvf seamonkey-2.49.2.tar.bz2
 

Try to run it

 ./seamonkey
XPCOMGlueLoad error for file /home/queenlazina/Downloads/seamonkey/libmozgtk.so:
libgtk-3.so.0: cannot open shared object file: No such file or directory
Couldn't load XPCOM.


Seems that libgtk is installed:


ls /usr/lib/x86_64-linux-gnu/libgtk-3.so.0
/usr/lib/x86_64-linux-gnu/libgtk-3.so.0

 

But note it is 64-bit and you need the 32-bit library since Seamonkey is 32-bit.

We need to enable i386/32-bit architecture and add the libgtk for 32 bit

sudo dpkg --add-architecture i386
sudo apt-get install libgtk-3-0:i386

After that you can run Seamonkey finally!

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