To answer your earlier inquiry... in general it should be safe to use both. When paths are passed in plugin configs, we run them through path.join to remove relative relations and double slashes, etc. In all cases (exceptions are bugs), the path should be relative from the plugin directory itself.
@luke Pre v30 (or maybe v29) you could move the refresh button anywhere on the toolbar, it's now fixed at the right of the Location bar. Can't be moved without addons.