SeaMonkey is already prepared to add web-page-provided search engines to its search bar.
The only thing missing is the detection mechanism for web pages. This add-on adds this functionality.Goodbye!
SeaMonkey 2.27 implements this feature
. So this addon will soon become obsolete. SeaMonkey 2.27 is currently on Aurora and we updated this addon with the strict compatibility flags on Mar. 19, 2014. Unfortunately, it is currently (Apr. 19, 2014) still under review. As soon as it goes online, this addon will be automatically disabled on SeaMonkey 2.27 or higher. If you're already on one of these versions, please uninstall this addon.
Thanks for your support and Goodbye!