Smarky and Simpy let you access the same set of bookmarks anywhere with an internet connection.
The quick search searches only the bookmark details, can be opened with the Home+Home key combo, and looks similar to Google Desktop's Ctrl+Ctrl search. The standard search in the sidebar or organize window pulls its results from simpy.com
Smarky supports nested labels with a customizable separator. It has a toolbar button which turns yellow when the page is bookmarked and when middle clicked can add/remove the site. There are also two toolbar buttons which can be used to add a bookmark to Simpy. Smarky also adds a tab to the Firefox add bookmark window(opened via Ctrl+D) to add bookmarks directly to Simpy.com
Also included are filters, which can be used for both batch editing and for automatically adding descriptions and labels to new bookmarks, and an Organize (Simpy) Bookmarks window with inline editing of bookmarks.
Simpy and Smarky allow for easy migration to and from the service, allowing you to import and export your bookmarks from the site. Smarky is completely separate from your Firefox bookmarks and does not remove or hide them.
To create an account, simply go to http://www.simpy.com/