title: All browsers "bookmark" link in JavaScript working with FF23+
body: <p>Since Firefox deprecated <code>window.sidebar.addPanel</code> in version 23, is  there a javascript code to bookmark a page with an image or link? I'm looking for an "all browser" version of the code, like the one that used to work here: <a href="https://stackoverflow.com/questions/10033215/add-to-favorites-button/">How do I add an &quot;Add to Favorites&quot; button or link on my website?</a>
  Thank you!</p>