SeaMonkey 2.5 Beta 1 Release — New Features and Fixes

The SeaMonkey project is proud to present SeaMonkey 2.5 Beta 1: The new major release of the all-in-one Internet suite is available for download now! Building on the same Mozilla platform as the newest Firefox release, it delivers the latest developments in web technologies.

SeaMonkey 2.5 Beta 1 is available in 24 languages, for Windows, Mac OS X and Linux.

Most notably, this release features for the first time:

Users now have more control over their add-ons. Upon upgrade, activation of third-party add-ons needs to be confirmed explicitly.
Improvements to HTML5 media elements and added support for new media APIs to improve the overall performance of video and audio
Additional support for HTML5 technologies, including the crossorigin attribute and insertAdjacentHTML
Updates to WebSockets
Support for CORS for WebGL textures
Hyphenation is now supported in many more languages
Fixed several stability issues

For a more complete list of major changes in SeaMonkey 2.5, see the What’s New in SeaMonkey 2.5 section of the Release Notes, which also contain a list of known issues and answers to frequently asked questions. For a more general overview of the SeaMonkey project (and screen shots!), visit

Full news article:

Downloads for all available platforms and languages:

Release notes:

System Requirements:

~Justin Wood (Callek)

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