After OSM Smart Menu v0.11.0, you can access your favorite links even when you are not already seeing a map.
Try clicking on the button in a blank page. You should see something like this: To see the list of links, just click on the button below the error message:
Right now, these links will take you to a zoomed-out view of the world.
PS: There is a discussion right now about good criteria for adding new websites to the extension. Please give your thoughts https://github.com/jgpacker/osm-smart-menu/issues/37 (it can be in the discussion thread, or you can send me a direct message in OpenStreetMap)