How to Install SeaMonkey on Linux Mint 21 or 20

SeaMonkey offers a unique blend of features and adaptability for Linux Mint users interested in a comprehensive Internet suite. This guide will focus on how to install SeaMonkey on Linux Mint 21 or the older stable release of Linux Mint 20.

Key Features of SeaMonkey for Linux Mint Users

  • Web Browser: Built on the Mozilla Firefox foundation, SeaMonkey provides a robust and flexible browsing experience.
  • Email and Newsgroup Client: SeaMonkey’s client offers advanced spam controls and a dynamic filter system for efficient email management.
  • IRC Chat: The embedded ChatZilla client simplifies global IRC network communication.
  • HTML Editor: SeaMonkey includes a WYSIWYG web page editor, making it easier for those who work with HTML.

Customization and Expansion

  • Add-Ons: Like Firefox, SeaMonkey supports many add-ons, allowing for a customized user experience.
  • Themes: Users can personalize the interface with various themes to match their aesthetic preferences.

SeaMonkey’s balanced approach to functionality and customization makes it a compelling choice for Linux Mint users who want an all-in-one Internet suite. Stay tuned for the step-by-step guide on installing SeaMonkey on Linux Mint 21 or Linux Mint 20.

Section 1: Install SeaMonkey on Linux Mint 21 or 20

Step 1: Update Linux Mint Before SeaMonkey Installation

Before we jump into the SeaMonkey installation process, ensuring that your Linux Mint system is up-to-date with all existing packages is crucial. An updated system provides a stable base for any new software installation and reduces the likelihood of software conflicts.

To update your system, run the following command in your terminal:

sudo apt update

The above command refreshes your local package index, ensuring your system knows about the latest versions of packages available.

After your package lists are updated, proceed to upgrade any outdated packages using the following command:

sudo apt upgrade

This command updates your installed packages to their latest versions, keeping your Linux Mint system in peak condition.

Step 2: Install Initial Packages for SeaMonkey on Linux Mint

Certain packages are required for the proper installation and functioning of SeaMonkey. These include dirmngr, software-properties-common, and apt-transport-https. To install these, run the following command:

sudo apt install dirmngr software-properties-common apt-transport-https -y

These packages are essential to managing software and keys on your system, ensuring smooth installation and functioning of the SeaMonkey suite.

Step 3: ImportSeaMonkey APT Repository on Linux Mint

If you’ve not previously imported a GPG key from the Ubuntu keyserver, the command-line terminal may have trouble importing GPG keys from LaunchPAD PPAs due to non-existent directories. But, this is easily resolved.

Execute the following command to generate the required directories:

sudo gpg --list-keys

Example output:

gpg: directory '/root/.gnupg' created
gpg: keybox '/root/.gnupg/pubring.kbx' created
gpg: /root/.gnupg/trustdb.gpg: trustdb created

Once the directories are created, you can import the GPG key required to verify the authenticity of the SeaMonkey packages. Use the following command to accomplish this:

sudo gpg --no-default-keyring --keyring /usr/share/keyrings/ubuntuzilla.gpg --keyserver --recv-keys 2667CA5C

Example output:

joshua@linux-mint:~$ sudo gpg --no-default-keyring --keyring 

/usr/share/keyrings/ubuntuzilla.gpg --keyserver --recv-keys 2667CA5C
gpg: keybox '/usr/share/keyrings/ubuntuzilla.gpg' created
gpg: key B7B9C16F2667CA5C: public key "Daniel Folkinshteyn (Ubuntuzilla signing key) <>" imported
gpg: Total number processed: 1
gpg:               imported: 1

Having successfully imported the key, proceed to import the APT repository using the following command:

printf 'deb [signed-by=/usr/share/keyrings/ubuntuzilla.gpg] all main\n' | sudo tee /etc/apt/sources.list.d/ubuntuzilla.list

This command adds the SeaMonkey APT repository to your system’s list of software sources, enabling the apt package manager to fetch SeaMonkey from the right location.

Step 4: Updating the APT Cache for SeaMonkey on Linux Mint

Having added a new APT source, run a quick APT update to refresh your package lists. This step ensures that your system is aware of the newly available SeaMonkey packages:

sudo apt update

Step 5: Install SeaMonkey via APT on Linux Mint

With all the prerequisites completed, you are now ready to install SeaMonkey. Execute the following command to begin the installation process:

sudo apt install seamonkey-mozilla-build

Section 2: Launching the SeaMonkey on Linux Mint 21 or 20

After successfully installing SeaMonkey on your Linux Mint system, two primary ways exist to launch the SeaMonkey suite. Depending on your preference, you can choose between the command-line interface (CLI) or the graphical user interface (GUI).

Launching SeaMonkey via the CLI on Linux Mint

If you prefer terminal commands for your operations, launching SeaMonkey through the CLI is as simple as entering a single command.

Open your terminal and type the following command:


SeaMonkey will be launched upon running this command, and you can start exploring its various features.

Launching SeaMonkey via the GUI on Linux Mint

You can launch SeaMonkey from your Linux Mint desktop environment for those who prefer graphical interfaces. This method involves interacting with your system visually, making it arguably more intuitive, especially for users less familiar with the command line.

To launch SeaMonkey via the GUI, follow these steps:

  • Navigate to the taskbar and click on “Show Applications“.
  • Look for the “Mozilla Build of SeaMonkey” application icon.

Clicking on the “Mozilla Build of SeaMonkey” application icon will launch the SeaMonkey suite, and you can begin to enjoy this comprehensive internet suite’s capabilities on your Linux Mint system.

Launching SeaMonkey Internet Suite on Linux Mint 21 or 20.Pin
Screenshot demonstrating the launch process of SeaMonkey Internet Suite on Linux Mint 21 or 20.

Section 3: Tips on Getting Started with SeaMonkey on Linux Mint

Navigating a newly installed software can sometimes be a bit of a puzzle. Here, we will share some tips to get you started on your journey with the SeaMonkey Suite on Linux Mint. These tips will cover general usage to customization, making your experience more efficient and personalized.

Exploring the Integrated Email and Newsgroup Client

SeaMonkey comes with a built-in email and newsgroup client. To access it, navigate to Window > Mail & Newsgroups. This client includes adaptive junk mail control, tags, and mail views to enhance your email management experience.

Understanding Browser Preferences

In SeaMonkey, you can manage your browsing preferences, including setting your homepage, controlling your privacy settings, and managing your cookies. Go to Edit > Preferences to explore and modify these settings.

Utilizing SeaMonkey Composer

SeaMonkey includes a powerful yet straightforward HTML editor called the Composer. It allows you to create or edit web pages without knowing HTML. Access it from Window > Composer.

Managing Profiles

SeaMonkey allows you to manage multiple user profiles. Each profile has its bookmarks, settings, and other user data. This feature is beneficial when sharing your computer with others. To manage profiles, run the following command in your terminal:

seamonkey -ProfileManager

Customizing the User Interface

You can customize your toolbars by navigating to View > Show/Hide. This option allows you to toggle various elements of the user interface, helping to streamline your workspace according to your preferences.

Setting Up Sync

SeaMonkey has a sync feature that lets you access your bookmarks, history, and other data across multiple devices. To set it up, go to Edit > Preferences > Sync.

Debugging with Error Console

The Error Console logs information associated with a webpage. This feature is essential for developers debugging web applications. Access it from Tools > Web Development > Error Console.

Remember, the beauty of SeaMonkey lies in its flexibility and comprehensive features. Feel free to explore beyond these tips and make the most out of this internet suite.

First-time configuration options for SeaMonkey Internet Suite on Linux Mint 21 or 20.Pin
A detailed look at the first-time configuration options for SeaMonkey Internet Suite on Linux Mint 21 or 20.

Section 4: Maintaining SeaMonkey on Linux Mint 21 or 20

This section covers the additional maintenance commands for the SeaMonkey Internet Suite on your Linux Mint system. From checking for software updates to clean uninstallation, we will explore a series of Terminal commands to keep your system streamlined and secure.

Update SeaMonkey on Linux Mint

First, let’s address how to update SeaMonkey on your Linux Mint system. Running the command below will look for and update all the installed packages on your system, including SeaMonkey.

sudo apt update && sudo apt upgrade

Remember, running regular system updates is a good habit. It ensures your software has the latest features and security patches.

Remove SeaMonkey on Linux Mint

Perhaps you have explored SeaMonkey and decided it’s not the right fit for you, or you want to free up some disk space. Either way, let’s walk through how to uninstall SeaMonkey safely.

Execute the following command to remove the SeaMonkey package from your Linux Mint system:

sudo apt remove seamonkey-mozilla-build

This command will initiate the removal process of the SeaMonkey software.

Housekeeping After Uninstallation

Post uninstallation, there might be residual files associated with the application that are not necessary anymore. These include the APT import repository and the GPG key for software authenticity verification. Cleaning these files is considered good housekeeping and adheres to security best practices.

To remove the APT import repository, which is no longer needed once you’ve uninstalled SeaMonkey, enter the following command:

sudo rm /etc/apt/sources.list.d/ubuntuzilla.list

If you wish to remove the GPG key as well, you can achieve this by running the command below:

sudo rm /usr/share/keyrings/ubuntuzilla.gpg

This command will effectively delete the GPG key.

Closing Thoughts

This guide has walked you through a step-by-step process to install, maintain, and ultimately uninstall the SeaMonkey Internet Suite on Linux Mint if need be. It’s essential to grasp the basic installation process, understand how to launch and use the suite and keep it updated for optimal functionality and security. When the time comes, knowing how to perform a clean uninstallation without leaving residual files is also crucial.

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