The bookmark hasn't changed in a long time. Regardless of browser, the bookmark is a link in a long line of other links that the user has saved for easy access. Chris Lee, an interaction designer and developer working with the Firefox UX team, wants to bring the bookmark into the future.
After finding inspiration in Pinterest and iTunes, Lee has crafted what he calls Mozaic. It's a new way of displaying bookmarks in a way that takes "advantage of modern advances in usability." By that, he means that Mozaic displays all of your bookmarks in a visual style reminiscent of Chrome's and Firefox's tab page.
Lee has added the following features to the current version of Mozaic:
If you're interested in the design process behind it, Lee also has an interactive slide showcase detailing the "Bookmarks of the Future."
Mozaic is also available on GitHub for download as a somewhat functional add-on for newer versions of Firefox. Lee warns that it might be slightly unpredictable at this point, but it's an interesting take on the tired concept of bookmarks.