How to Install SeaMonkey on Ubuntu 16.04

This tutorial will be showing you how to install SeaMonkey on Ubuntu 16.04. SeaMonkey, formerly known as Mozilla Suite, is an open source, community-driven Internet application suite. The latest stable release is SeaMonkey 2.46 at time of this writing.

SeaMonkey is composed of the following programs:

  • a web browser
  • an email and news client
  • a WYSIWIG HTML editor
  • an IRC client
  • an address book manager

How to Install SeaMonkey on Ubuntu 16.04

SeaMonkey isn’t included in Ubuntu repository. We can install SeaMonkey via Ubuntuzilla, which is an APT repository containing the latest SeaMonkey deb package.

To add the Ubuntuzilla repository to your system, you need to open up a terminal window and edit the sources.list file.

sudo nano /etc/apt/sources.list

Then scroll down to the bottom of the file and append the following line into the file.

deb http://downloads.sourceforge.net/project/ubuntuzilla/mozilla/apt all main

seamonkey ubuntu

Save and close the file. Then run the following command to import Ubuntuzilla public key to your GPG keyring so that the integrity of packages downloaded from this repository can be verified by APT.

sudo apt-key adv --recv-keys --keyserver keyserver.ubuntu.com 2667CA5C

Finally, update your package list and install SeaMonkey.

sudo apt-get update

sudo apt-get install seamonkey-mozilla-build

Once installed, you can start it from Unity Dash or your preferred application launcher.

seamonkey ubuntu 16.04

SeaMonkey Browser on Ubuntu 16.04

seamonkey deb

SeaMonkey keeps a traditional look of web browsers.  There are 4 buttons on the bottom-left corner of the browser, taking you to the browser, email client, HTML composer and address book, respectively. Compared to Mozilla Thunderbird, the email client is lightweight. It works with most modern email services and your own email server if you know how to build one.

apt-get install seamonkey

You can also install add-ons like Lightning (calendar) and DOM inspector. Many Firefox add-ons are compatible with SeaMonkey.

If for any reason you want to remove it, use this command:

sudo apt-get remove seamonkey-mozilla-build

That’s it!

I hope this tutorial helped you install and use SeaMonkey on Ubuntu 16.04. As always, if you found this post useful, then subscribe to our free newsletter. You can also follow us on Google+Twitter or like our Facebook page.

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6 Responses to “How to Install SeaMonkey on Ubuntu 16.04

  • Gruffydd
    5 months ago

    Worked like a charm. Thank you very much! 🙂

  • J Richard Kirkham BSc
    5 months ago

    Where’s the html editor?

    • Jeff Silverman
      5 months ago

      There are (at least) two ways to do it:
      1) Open a web page. It might be on the internet or it might be on your local file system. Then, in the file menu, is an option: edit file. Select it. That will start the editor
      2) From the command line: /usr/bin/seamonkey –edit FILENAME

  • Professor O
    5 months ago

    Worked perfectly. Thank you. Much better than the official instructions.

  • robert barnesi
    5 months ago

    will these instructions work for 14.04 as well? I’ve got a ton of old e-mail I want to import from a defunct windows computer.

  • Tom Emig
    4 months ago

    I used the instructions exactly as written. Successful, simple install. Installed on Ubuntu 15.04 (lubuntu). Used File/New/Composer Page to begin wysiwyg creation of new web page. Easy import of photos. Easy creation of test table.

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