Cheers to fcp for the Link Status extension and to Philip Chee for adding SeaMonkey bookmark status support! Without these two I wouldn't have started this extension so easily.
Supports xSidebar (Bookmark Manager search by URL) and Flat Bookmark Editing (changes made to bookmarks)
Hooks into tab switching and page load notifications
Hooks into and fires bookmarks-changed notification
Hooks into Add Bookmark dialog
Hooks into bookmark Properties dialog
Hooks into internal addBookmark function called when adding a bookmark without a dialog