Pros / SeaMonkey is an all-in-one internet suite with browsing, email and chat capabilities.

Cons / The browser’s startup speed is sluggish and its interface is clunky and dated.

 Verdict / SeaMonkey is a good option if you want all-in-one browsing and internet capabilities.

While some internet browsers are for-profit applications backed by major corporations, the SeaMonkeybrowser suite is an open-source, community-driven project. This means any developers, marketers or testers interested in contributing to the development of the internet browser can do so. However, many of SeaMonkey’s inherent drawbacks are a result of its open-source platform, and the browser lacks the sleekness and ease of use the top internet browsers in our lineup possess.

The hallmark feature of SeaMonkey is the fact that it is an all-in-one internet suite. This means not only does it provide browsing capabilities, it also has an email client, built-in chat and a WYSIWYG (“what you see is what you get”) editor that helps you build simple, basic websites. Subsequently, SeaMonkey is a good default browser if you are seeking an all-inclusive internet suite that limits the number of individual applications you need to utilize.

We also liked that the browser supports most of the add-ons and extensions compatible with Mozilla’s Firefox; both internet browsers use the same rendering engine. SeaMonkey also offers beneficial features such as a password manager, customizable toolbars and the ability to restore sessions. The internet browser, however, doesn’t provide many of the more advanced features we looked for in web browsers. It doesn’t provide mouse gestures or voice interaction for multimodial browsing.

Since SeaMonkey is built on Mozilla’s source code, the internet browser also benefits from most of Mozilla’s security functions. The internet browser safeguards against most online threats including viruses, rootkits and fraudulent phishing websites. You can also download new security updates directly from the SeaMonkey website.

When it comes to ease of use, SeaMonkey is easy to install and its features are easy to access and utilize. With that said, the SeaMonkey interface feels clunky and outdated, reminiscent of a very early version of Firefox. Its lack of polish doesn’t hamper usability but it does make the internet browser feel archaic and obsolete, especially compared to the other internet browsers we reviewed.

SeaMonkey provides very few support options for users. As an open-source platform, the browser relies heavily on community users to provide support. The user forums prove to be a good resource, where you can ask questions and find relevant information to your inquiry.

SeaMonkey 2.32 Visit Site
  • Initial Startup Time
  • Average Startup Time
  • Navigation Time
  1. The amount of seconds until a site completely boots up.
    Lower is Better
  2. 8  SeaMonkey
    2.45 Seconds
  3. 1.55 Seconds
  4. 1.56 Seconds
  5. 3  Opera
    2.2 Seconds
  6. Category Average
    2.99 Seconds


SeaMonkey is a good, but far from great, internet browser. Its features are practical, albeit basic, and it provides protection from dangerous internet threats. Many users will also find its all-in-one functionality convenient. However, SeaMonkeydesperately needs a facelift and improved browsing speeds in order to compete with the more widely used internet browsers on the market.

SeaMonkey 2.32 Visit Site