SeaMonkey is a free and open-source Internet suite that includes a web browser, email client, and other web-related tools.

SeaMonkey is developed by the SeaMonkey Council and is based on the same technology as the Firefox web browser and Thunderbird email client. It includes features such as tabbed browsing, a customizable interface, support for HTML5 and CSS3, and an IRC chat client.

One of the benefits of using SeaMonkey is that it provides a complete set of web-related tools in one package, which can be useful for users who want to use multiple applications without having to install them separately. It also allows for easy customization and extension through the use of add-ons and themes.

Some of the features of SeaMonkey include tabbed browsing, customizable toolbars, and built-in popup blocking. It also has a password manager, a download manager, and supports multiple languages. SeaMonkey also supports HTML5, CSS3, and other modern web technologies.

Overall, SeaMonkey is a versatile internet suite that is suitable for both personal and professional use.

Key Features:

• Web browsing: SeaMonkey includes a fast, secure, and customizable web browser with tabbed browsing and pop-up blocking.
• Email: It features a full-featured email client with advanced filtering, message search, and message grouping.
• Newsgroup: SeaMonkey comes with a newsgroup client that allows users to access discussion forums and read messages.
• Chat: It also has an IRC chat client that allows users to connect to chat rooms and communicate with other users.
• Composer: SeaMonkey includes a WYSIWYG HTML editor that enables users to create and edit web pages.
• Add-ons: It supports a wide range of add-ons and extensions that can enhance its functionality and customize the user experience.
• Cross-platform: SeaMonkey is available for Windows, Mac, and Linux operating systems, making it accessible to a broad user base.

Version 2.53.16

• No throbber in plaintext editor
• Remove unused gridlines class from EdAdvancedEdit
• Remove ESR 91 links from debugQA
• Rename devtools/shim to devtools/startup
• Remove unused seltype=text|cell css
• Implement new shared tree styling
• Use `win.focus()` in macWindowMenu.js
• Remove WCAP provider
• Remove ftp/file tree view support
• Change calendar list tree to a list
• Various other updates to the calendar code
• Continue the switch from Python 2 to Python 3 in the build system
• Verified compatibility with Rust 1.66.1