The latest version of SeaMonkey can be downloaded from Softpedia
SeaMonkey 2.22, a web browser, advanced email client, newsgroup client, IRC chat client, and HTML editing suite, is now available for download.A new version of the popular SeaMonkey suite has been released and it packs quite a few features, not to mention the fact that it also integrates a number of changes imported from Mozilla Firefox 25.
Highlights of SeaMonkey 2.22:
• Users can now sort messages by date and it can be configured to look at the thread root instead of the newest message in it;
• Plugins doorhangers now allow to activate different plugin types independently;
• A "Validate this page" entry has been added to Tools/Web Development;
• Web Audio support has been implemented;
• Many new ES6 functions have been added.
More details about this version can be found in the official announcement. Download SeaMonkey 2.22 right now from Softpedia.