I'm trying to get my extension (using Firefox Addon SDK 1.17) to work on SeaMonkey (2.30). After modifying install.rdf to allow my extension to be installed, I can see SeaMonkey accepted the extension. However -- my extension's button isn't visible anywhere in the UI. I am using sdk/ui/button/toggle. I have also tried require("sdk/ui").ActionButton but that doesn't seem to do anything either.
What do I need to do to make sure my extension can render a button into SeaMonkey's toolbar?
Looks like the answer is that SeaMonkey does not officially support the Addon SDK yet. Support is planned for SeaMonkey 2.33